Honda HT-R3811 User's Manual
Contents
1. Position shift lever in NEUTRAL 3 P T O lever engaged Position blade P T O lever in DISENGAGE Spark plug faulty Regap plug or replace see p 42 improperly gapped 5 Spark plug wire loose Check spark plug wire or disconnected Fuel not reaching Check the position of the fuel valve carburetor see If that s not the problem see your authorized HONDA dealer 7 Discharged battery or Charge battery or retighten terminal loose terminal see Engine loses power 1 Dirty air cleaner elements Clean or replace elements see p 41 2 Spark plug faulty or Regap plug or replace see improperly gapped Engine overloaded Shift to lower speed Engine overheats 1 Cooling air intake plugged Clean cooling air intake see p 15 2 Engine overloaded Shift to lower speed Spark plug improperly Regap plug or replace see p 42 gapped 4 Cooling fan damage See your authorized HONDA dealer 55 Erratic operation 1 Dirty fuel See your HONDA dealer 2 Dirty air cleaner elements Clean air cleaner elements see p 41 Spark plug faulty or2. M Regap plug or replace 42 Improperly gapped Excessive vibration 1 Loose blade or engine Retighten blade bolts or engine mounting hardware mounting hardware to the specified torque 2 Blade damaged or out of Replace blades balance Battery will not charge 1 Dead cell in battery Replace battery 2 Loose electrical connec Check connections and lines tions or broken wire Uneven rhowing 1 Riding mower speed too fast Shift to lower speed 2 Grass accumulation s Clean deck inside 36 inside deck 3 Dull blade blade or replace 4 Tires improperly inflated Check tire inflation 22 D not level Check cutter deck mounting See your authorized HONDA dealer 6 Wrong cutter deck height Change to proper height 7 Chute clogged if equipped Empty grass bag and chute with optional grass bag 56 Clogged cutter deck discharge chute 1 Wrong blades Use genuire Honda blades or equivalent 2 Deck too low Raise deck and adjust deck height properly 3 Engine overloaded Operate at full throttle Use lower speed range Set cutter deck higher than desired height for fi
3. Approx Dry weight 177 kg 390 2 Ib Tire size Front 11 x 4 00 5 Rear 16 6 50 8 Air pressure Front 1 0 kg cm Rear 0 7 kg cm Gear selections 5 Forward 1 Reverse Travel speed 3300 rpm First 2 4 km h 1 5 Second 3 7 km h 2 3 mile h Third 5 7 km h 3 5 mile h Fourth 7 0 km h 4 3 mile h Fifth 7 9 km h 4 9 mile h Reverse 2 8 km h 1 7 mile h Fuel tank capacity 2 0 0 53 US gal Battery 12V 22AH NOTE Specifications are subject to change without notice 58 a SEAT SWITCH Ble ee 17 mm ro NEUTRAL SWITCH m dL dL pui 15 BRAKE MEE D pis aces ce B BUZZER COMBINATION SWITCH CHARGE STARTER MOTOR SPARK OIL LEVEL BATTER PLUG SWITCH 12V GROUND moraer ror 800 ORANGE ra GREEN 94 LIGHT GREEN mp fe rk 3 wire 00307 751 7000 UN 4 1 H Wr TA eT ae H r OL INVHOVKI 11 WARRANTY SERVICE Owner Satisfaction Your satisfaction and goodwill are important to your dealer and to us All Honda warranty details are explained in the Distributor s Limited Warranty Normally any problems concerning the product will be handled by your dealer s
4. Allow it to cool before proceeding 33 3 Remove battery and store cool dry place Recharge it once month 4 Remove the cutter deck 4 1 Lower the cutter deck and be sure the P T O lever ts in the OFF position Turn the front wheels all the way to the left and then remove the belt stopper BELT STOPPER 4 2 Remove the primary belt from the pulley on the underside of the transmission DECK BELT CAUTION When the cutter deck is removed the return spring will cause the deck height adjusting lever to snap unward when the release button is press ed Hold the lever firmiy and carefully return it to the UPPER position after removing the deck 34 4 3 Remove the 7 mm lock pin collar and washer from the P T O clutch rod 4 4 Remove the four 14 mm lock pins and washers from the right and left of the cutter deck 2 P T O CLUTCH ROD WASHER 4 3 14 4 WASHER LOCK PIN 7 mm COLLAR CUTTER DECK 4 5 Remove the front deck arms from the frame body by removing the two lock pins and washers D DECK ARMS LOCK PIN 2 WASHER 12 4 6 Disengage the cutter deck from the rear deck arms by moving it from side to side 35 4 7 With the steering wheel the way to the left pull the cutter deck to the right and back CAUTION Be careful to avoid hitting the muffler with the cutter deck during removal 5 Turn the cutte
5. 2 US qt OIL DRAIN BOLT CAUTION Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods Although this is unlikely unless you han dle used oil on a daily basis it is still advisable to thoroughly wash your hands with soap and water as soon as possible after handling used oil NOTE Please dispose of used motor oil in a manner that is compatible with the environment We suggest you take it in a sealed container to your local service station for reclamantion Do not throw it in the trash or pour it on the ground 40 2 Air cleaner service A dirty air cleaner will restrict air flow to the carburetor To prevent carburetor malfunction service the air cleaner regularly Service more frequently when operating the riding mower in extremely dusty areas Never use gasoline or low flash point solvents for cleaning the air cleaner element fire or explosion could result CAUTION Never run the engine without the air cleaner Rapid engine wear will result 1 2 3 Raise the rear body Remove the wing nuts and the air cleaner cover Remove the elements and separate them Carefully check both elements for holes or tears and replace 1f damaged Foam element Clean in warm soapy water rinse and allow to dry thoroughly Or clean in high flash point solvent and allow to dry Dip the element in clean engine and squeeze out all the excess The engine will smoke duri
6. and blade condition Clean N Brake and clutch fastaner tightness Parking brake Check Spark plug Clean Readiust Check Spark arrester faptional part Drive clutch Check Adjust Front axle Grease Check Replace if necessary Clean Fuel line Valve clearance Check Readjust Engine fins and shroud Clean NOTE 11 Service the air cleaner more frequently when used in dusty areas 2 These items should be serviced by an authorized Honda dealer unless the owner has proper tools and is mechanically proficient 3 For professional commercial use log hours of operation to determine proper maintenance intervals 39 1 Engine oil change NOTE Drain the oil while the engine is still warm to assure rapid and complete draining 1 Raise the rear body 2 Remove the oil filler cap and the drain plug and drain the oil into a suitable container 3 Retighten the drain bolt securely NOTE Before refilling the crankcase check the operation of the Low Level Alarm Remove the spark plug cap shift the transmission into neutral and turn the ignition key to the ON position The warning buzzer should beep on and off if it does not beep take the riding mower to an authorized Honda riding mower dealer for repair 4 Refill to the upper level mark on the dipstick with the recommended see p 15 Tighten the oil filler cap securely OIL FILLER CAP UPPER LEVEL OIL CAPACITY 1 12 1
7. carburetor air fuel mixture will be excessively rich Performance will decrease and fuel consumption will increase High altitude performance can be improved by installing a smaller diameter main fuel jet in the carburetor and readjusting the pilot screw If you always operate the riding mower at altitudes higher than 6 000 feet above sea level have your authorized Honda Riding Mower dealer perform these car buretor modifications Even with suitable carburetor jetting engine horsepower will decrease ap proximately 3 5 for each 1 000 foot increase in altitude The affect of altitude on horsepower will be greater than this if no carburetor modifica tion is made CAUTION Operation of the riding mower at an altitude lower than the car buretor is jetted for may result in reduced performance overheating and serious engine damage caused by an excessively lean air fuel mixture 31 6 TRANSPORTING STORAGE Transporting Transport the riding mower on a flat level trailer or pick up truck with suitable tie down points Turn the fuel valve OFF and set the parking brake lever Tie the riding mower down securely using the tie down points shown below CAUTION To avoid damaging the tie rods be careful not to put the rope around or near them when securing the front end PROPER TIE DOWN POINTS Spilled fuel may ignite To avoid fuel and oil spillage keep the riding mower level when transporting CAUTION Do not pull
8. necessary Your engine is designed to use any gasoline that has a pump octane number of 86 or higher that has a research oc tane number of 91 or higher Gasoline pumps at service station normally display the pump octane number We recommend that you use unleaded fuel because it produces fewer engine and spark plug deposits and extends the life of exhaust system components Never use stale or contaminated gasoline or an oil gasoline mixture Avoid getting dirt dust or water in the fuel tank Use of a lower octane gasoline can cause persistent pinging or heavy spark knock a metallic rapping noise which if severe can lead to engine damage CAUTION If spark or pinging occurs at a steady engine speed under normal load change brands of gasoline If spark knock or pinging persists consult your authorized Honda dealer Failure to do so is con sidered misuse and damage caused by misuse is not covered by Honda s Limited Warranty Occasionally you may experience light spark knock while operating under heavy loads This is no cause for concern it simply means your engine 15 operating efficiently After refueling be sure to tighten the fuel tank cap firmly UPPER LEVEL 17 Ve WARNING Gasoline is extremely flammable and is explosive under certain conditions Refuel in a well ventilated area with the engine stopped Do not smoke or allow flames or sparks in the area wh
9. the riding mower behind any other vehicle and do not use the riding mower to push another vehicle Preparation for storage CAUTION If the riding mower has been running the engine will be very hot allow to cool before proceeding The following steps should be taken to protect the riding mower when ever it will be stored for longer than 30 days 1 Drain all gasoline from the fuel tank into approved gasoline con tainer 32 Turn the fuel valve ON loosen the carburetor drain screw and drain the fuel into an approved gasoline container After draining tighten the drain screw securely Gasoline is extremely flammable and explosive under certain conditions Do not smoke or allow flames or sparks in the area DRAIN SCREW 2 2 Change the engine oil see 40 NOTE If the riding mower will be stored for longer than 3 months raise the rear body and remove the spark plug and pour three tablespoons approximately 1 of clean motor oil into the cylinder Place the P T O lever in the OFF position and the shift lever in the N posi tion With the parking brake applied lower the cutter deck to the bottom Reaching from the rear of the mower grasp the primary belt at point A and slowly pull it toward you to turn the engine Reinstall the spark plug CAUTION Be sure to wear heavy gloves when pulling the primary the riding mower has been running the engine will be very hot
10. transmission to 1st gear position E Release the brake pedal F Wait until the clutch engages G Then release the parking brake lever If the parking brake lever is released before the brake pedal the riding mower may roll downhill before the clutch engages This may cause the riding mower to tip over 28 5 Cutting Patterns These cutting patterns are only recommended for a flat level lawn surface See safe operating rules e in a small area First make 2 or 3 turns in a clockwise direction then turn around and continue cutting in the reverse direction e n a large area The first round of cuts 1s the key to making a neat finish First make 2 or 3 turns in a clockwise direction you reach the center of the area turn to the right and continue cutting in a counterclockwise direction until you have finished the upper half of the area Cut the grass in the remaining half in a counterclockwise direction 29 OEO J Xses Stopping the engine e in an emergency Turn the engine switch OFF e In normal use 1 Move the P T O lever to OFF Disengaged ON Engaged OFF iDisengaged 2 Move the shift lever to the Neutral position 3 Set the parking brake 4 Turn the engine switch OFF Raise the rear body turn the fuel valve OFF and close the rear body REAR BODY 30 High altitude operation At high altitude the standard
11. 14 mm wheel hub washer nut and the rear wheel 3 Apply a thin coat of grease to the axle splined portion before installing the rear wheel 4 Install the rear wheel in the reverse order of removal Be sure to use a new cotter pin and bend it properly as shown JACK POINTS FRONT COTTER PIN a WHEEL HUE MUT COTTER PIN 46 7 Deck adjustment replacement Never attempt to change a belt while the engine is running Remove the engine key from the ignition and disconnect the spark plug cap to prevent accidental start up CAUTION Wear heavy gloves to protect your hands when replacing belts or when working with the cutter blade Adjustment 1 Set the steering wheel in the straight ahead position 2 Move the P T O lever to the ON Engaged position 3 Lower the cutter deck as far as it will go with the cutter deck height adjusting lever 4 Loosen the 8 x 16 mm flange bolt and pull the tensioner pulley outward un til the index mark on the tensioner arm aligns with the tension alignment mark on the cutter deck Hold the tensioner pulley in place and retighten the bolt TENSIONER PULLEY INDEX MARK FLANGE BOLT x 16 mm TENSIONER ARM TEMSIOM ALIGNMENT MARK 47 ll Replacement 1 Remove the cutter deck see pages 34 thru 36 2 Remove the blade belt see page 49 3 Hold the bracket and move the knob to the right so that the tensioner arm moves in the direction ind
12. 61 62 MEMO 63 64 M LLILLLLL 6 BN PIN 31751703 50 2003 04 00X31 751 7030 Paper PRINTED IN U S A
13. ACH OF CHILDREN CAUTION e Use only distilled water in the battery Tap water will shorten the service life of the battery Filling the battery above the UPPER LEVEL line may cause the electrolyte to overflow resulting in corrosion to engine or nearby parts Immediately wash off any spilled electrolyte 21 8 Adjust the seat position 1 Raise the rear body 2 Disconnect the 2 pin connectors 3 Loosen the four seat mounting nuts 4 Move the seat to a position that allows you to reach all controls easily and comfortably 5 Tighten the seat mounting nuts securely Be sure to re connect the 2pin connectors 2 pin CONNECTORS SEAT MOUNTING NUT 4 9 Check the tire pressure CAUTION Improper inflation may lead to premature tire failure Mever exceed the manufacturer s maximum tire pressura specification Check the tire pressure with an air pressure gauge Pressure Front 1 0 kg cm 14 2 psi Rear 0 7 kg cm 9 96 psi 22 5 OPERATION Starting the engine Exhaust gas contains poisonous carbon monoxide Mever run the engine in an enclosed area Be sure to provide adequate ventilation 1 Raise the rear body turn the fuel valve ON and close the rear body REAR BODY 2 Sit on the seat and check that the parking brake lever is set the transmission is in neutral and the P T O lever is in the OFF Disengaged position 3 Move the throttle lever to the START CHOKE pos
14. COOLING AIR INTAKE SCREENS UM SS a Ye Oh 15 2 Check the engine oil level CAUTION Engine oil is a major factor affecting engine performance and service life Non detergent oil and 2 stroke engine oil are not recommended Running the engine with insufficient oil can cause serious engine damage Place the riding mower on a level surface Lift the rear body wipe dust and dirt from around the oil filler cap remove the cap and wipe the dipstick clean Insert the dipstick into the oil filler neck but do not screw it Check the oil level shown on the dipstick If near or below the lower level mark fill to the upper level mark with the recommended oil Use Honda 4 stroke oil or an equivalent high detergent premium quality motor oil certified to meet or exceed U S automobile manufacturers requirements for service classification SE or SF Motor oils classified SE or SF will show this designation on the container SAE 10W 40 is recommended for general all temperature use _ OIL FILLER 20W 40 20W 50 Y A 2 20 0 20 40 60 80 100 F M LETRA 30 20 10 0 10 20 30 40 2 fi ___ uns S Ca gt UPPER LEVEL LOWER LEVEL 16 3 Check the fuel level Raise the rear body and check the fuel level Refill the tank to the upper level mark if
15. Filling the battery above the UPPER LEVEL line may cause the electrolyte to overflow resulting in corrosion to engine or nearby parts Immediately wash off any spilled electrolyte 44 T 5 Drive clutch inspection T Place the shift lever in the 72 position 2 Using light pressure push the clutch arm toward the front of the riding mower until you feel resistance At this point the index mark on the clutch arm should be between the two notches on the clutch cable joint If the in dex mark moves to the service limit notch the clutch disk may be worn out consult your authorized Honda dealer NOTE Do not force the clutch arm during this inspection or a false failure in dication will result CLUTCH ARM SERVICE CLUTCH ARM LIMIT NOTCH 1 CES alu FE NOTCH CLUTCH CABLE JOINT 45 6 Wheel removal e Do not attempt to remove a wheel unless the riding mower is on firm and level ground e Do not attempt to remove or replace a tire unless you have the equipment and knowledge to do so properly Block the wheels securely Front wheel 1 Remove the cotter pin 2 Jack up the front of the mower and remove the 12 mm wheel hub nut washer and the front wheel 3 Install the front wheel in the reverse order of removal Be sure to use a new cotter pin and bend it properly as shown Rear wheel 1 Remove the cotter pin 2 Jack up the rear of the mower and remove the
16. HONDA OWNER S MANUAL HT R3811 PET tT Et LL LLL LLLI Click here to save this EN manual to your computer Hes Ti 2003 Honda Motor Co Lid Ail Rights Reserved A OE nI J J NEN Thank you for purchasing a Honda riding mower This manual covers the operation and maintenance of the Honda HT R381 1 riding mower type SA side discharge Honda Motor Co Ltd reserves the right to make changes at any time without notice and without incurring any obligation part of this publication may be reproduced without written permission This manual should be considered a permanent part of the riding mower and should remain with the riding mower when sold Pay special attention to statements preceded by the following words DANGER Indicates severe personal injury or loss of life will result if in structions are not followed Indicates a strong possibility of severe personal injury or loss of life if Instructions are not followed CAUTION Indicates a possibility of personal injury or equipment damage if instructions are not foltowed NOTE Gives helpful information Honda riding mowers are designed to give safe and dependable service if operated according to instructions Read and understand this Owner s Manual
17. S 5 ENGINE BEFORE REMOVING GRASS CATCHER OR CLEANING DISCHARGE CHUTE KEEP ALL SHIELDS AND SAFETY DEVICES PLACE KEEP PEOPLE AND PETS SAFE DISTANCE WHILE OPERATING RIDING MOWER 15 NOT LEGAL FOR USE PUBLIC STREETS OF HIGHWAYS OPERATION STAR FING ENGINE OPERATING 1 MOVE PTO LEVER TO OFF 1 DEPRESS BRAKE SHIFT gt MOVE TRANSMISSION SHIFT TRANSIISSION SHIFT LEVER LEVER TO 10 DESIRED RANGE MOVE THROTTLE LEVER TO 2 RELEASE ERAKI PEDAL START SEART MOVING EINE TUE TRA i RELEASE PARKING BRAKE START AND ALLUV STOPPI ENGINE TO UP Sor PING ENG EE SET THRO TLE LEVER AND SHIFT BE TWEEN LEVER TH N SET PARKING BRAKE TURN IGNITION KEY TO OFF HINDA WA COLLED VADE 1 KEEP HANDS FEET AWAY FROM MOWER OF CISCHARGE GUARD WHILE BLADE 15 TURNING DANGER KEEP HANDS AMD FEET AWAY FROM DR OS CHARGE GUARD WHILE BLADE 15 TURNING WEAR HEAVY GLOVES TO PROTECT YOUR HANDS WHEN REPLACING THE BLADE BELT AND DON T PUT YOUR HANDS HETWEEM THE PULLEYS GRASP THE THE TENSIONER PULLEY FIRMLY AND RETURN THE TENSIONER ARM SLOWLY DON T LET IT SNAP BACK GASOLINE IS FLAMMABLE STOP ENGINE AVOID HEAT SPARKS AND OPEN FLAME WHEN REFUELING RIDING MOWER SAFETY Operating a riding mower requir
18. arting unless the P T O lever is in the OFF position 6 Brake pedal Depressing the pedal will first disengage the riding mower drive clutch you continue to depress the pedal the brake will be applied to stop the riding mower When the clutch pedal is released the clutch will automatically engage smoothly CAUTION Releasing the brake pedal too slowly can cause the clutch to slip and may lead to premature clutch wear 12 7 Warning buzzer The warning buzzer has two functions which are described below A Low oil level alarm intermittent beeping sound If the oil level falls to a predetermined level while the engine is running the warning buzzer will beep on and off If this happens stop the engine im mediately check the engine oil level and add enough of the recommended oil to bring the level to the upper mark on the dipstick See CAUTION Running the engine with insufficient oil can cause serious engine damage B Parking brake reminder steady buzzing sound The warning buzzer will sound continuously if the transmission is shifted in to gear while the parking brake is engaged If you hear a steady buzz from the warning buzzer release the parking brake or shift the transmission into neutral immediately See page 14 EE Operating the riding mower with the parking brake set will result in severe damage to the brake lining and could lead to complete brake system failure CAUTION If the alarm changes fr
19. at tempt to screw the adjusting lever s set button in or out INDICATOR HEIGHT ADJUSTING LEVER 4 Shift lever md This lever is used to select one of the five forward speeds neutral or reverse drive clutch automatically disengages while the lever is being moved The clutch will then engage automatically when put into gear unless the brake pedal is depressed Do not operate the shift lever on a slope CAUTION Bring the riding mower to a complete stop before shifting from a forward speed to reverse or from reverse to a forward speed Shifting be tween forward and reverse speeds while the riding mower is moving cause transmission damage tock f L When shifting from one forward speed range to another while moving do not force the shift lever and do not shift up or down more than one slot at a time NOTE The riding mower will pull away from a stop in any speed range No shifting is necessary Sth speed is not recommended for mowing but may be used for driving the riding mower from one area to another 5 Power Take Off lever This lever engages and disengages the power take off clutch to drive the blade Lever positions ON Engaged Blade turns OFF Blade stops ON m OFF Di ed P T O LEVER Disengaged NOTE An interlock switch prevents the engine from st
20. before operating the riding mower Failure to do so could result in personal injury or equipment damage If a problem should arise of if you have any questions about the riding mower consult an authorized Honda riding mower dealer It is illegal in some areas to operate a gasoline engine without a U S D A qualified spark arrester check local laws and regulations You can purchase an optional spark arrester for this riding mower from your authorized Honda Power Equipment dealer HONDA MOTOR CO LTD 1986 ALL RIGHTS RESERVED 5 SAFETY INSTRUCTIONS COMPONENT IDENTIFICATION CONTROLS PRE OPERATION CHECKS OPERATION e Starting the engine REPRE UK SPA SER 23 AES eR 26 StobpihdtbseHgiHe 2255 Pede EPI NN 30 High altitude operation 777 31 TRANSPORTING STORAGE MAINTENANCE TROUBLESHOOTING SPECIFICATIONS WIRING DIAGRAM WARRANTY SERVICE 1 SAFETY INSTRUCTIONS WARNING LABEL LOCATIONS WARNING DANGER EDO OPERATE MOWER WITHOUT DISCHARGE GUARG BCLEAR LAWN OF DEBRIS AMD OBJECTS ECO MOW NEAR PEOPLE OR PETS CHJECTS BE THROWN FROM MOWER BREAD OWNER S MANUAL BEFORE OPERATING BOPERATOR ONLY NOT CARRY PASSENGERS MAXIMUM SAFE OPERATING ANGLE 10 DEGREES 17 GRADE REDUCE SPEED WHEN TURNING OR OPERATING ON SLOPE
21. bolts and the blade CAUTION To avoid damaging the blade be sure to hold it securely while dressing or resharpening it 3 Maintain the original cutting edge bevel when resharpening or dressing the blade Leave 1 64 inch 0 4mm flat face the cutting edge a razor sharp edge will chip easily and will become dull quickly a 1 64 in 0 4 Sharpen at original angle am m A E i 4 When resharpening do not file the blade parallel to the original edge Instead file the blade on an angle as shown and do not extend the cutting edge any farther toward the center of the blade Be sure to remove equal amounts of material from each end of the blade to maintain proper balance CORRECT METHOD INCORRECT METHOD z ern dr Tm II RON UE Keep original length Original edge 5 After sharpening test the blade s balance using a screwdriver as shown If either side dips slightly below horizontal file that side Replace the blade if it dips excessively CAUTION unbalanced blade will cause abnormal vibration and eventual mower damage 52 OOOO Blade replacement CAUTION Always wear heavy gloves to protect your hands when working with the cutter blade 1 Hold the blade firmly and remove the blade bolt washer and blade BLADE BOLT WASHER BLADE 2 Clean any dirt and grass from around the blade shaft and inside the d
22. eck 3 Install a new blade onto the shaft and secure it with the blade bolt and washer Tighten the bolts securely and install the mower deck Blade bolt tightening torque 4 5 5 5 kg m 32 55 39 78 ft lb TORQUE WRENCH BLADE 53 11 Spark arrester maintenance optional part You can purchase an optional U S D A qualified spark arrester from your authorized Honda Power Equipment dealer Spark arrester are required in some areas check local laws and regulations before operating your riding mower The muffler becomes very hot during operation and remains hot for while after the engine stops Be careful not to touch the muffler while it is hot Allow it to cool before proceeding CAUTION The spark arrester must be serviced every 100 hours to main tain its efficiency 1 Remove the three 6 mm bolts and 8 mm bolt that hold the shift lever guide stay and then remove the stay 2 Remove the two 6 mm bolts from the exhaust pipe tip Remove the exhaust pipe tip and spark arrester be careful not to damage the spark ar rester screen 3 Use a wire brush to remove carbon deposits from the spark arrester screen NOTE Inspect the spark arrester and replace it if the screen is broken or torn 4 Reinstall ail parts in the reverse order of removal SPARK ARRESTER 54 8 TROUBLESHOOTING Engine fails to start 1 No fuel Add fuel 2 Shift lever in gear
23. ed An improperly tightened plug can become very hot and possibly damage the engine e Never use a spark plug with an improper heat range 43 i O O Ma 4 Battery electrolyte level check Raise the rear body remove the battery cover and check the electrolyte level in each battery cell Fill the battery with distilled water to the upper level line Never overfill the battery Any corrosion around the positive and negative terminals should be washed with a solution of baking soda and warm water Dry the terminals and retighten the terminal bolts if necessary then coat the terminals with grease Y WARNING The battery gives off explosive gases keep sparks flames and cigarettes away Provide adequate ventilation when charging or using batteries in an enclosed space The battery contains sulfuric acid electrolyte Contact with skin or eyes may cause severe burns Wear protective clothing and a face shield If electrolyte gets on your skin flush with water M electrolyte gets in your eyes flush with water for at least 15 minutes and call a physician immediately Electrolyte is poisonous 1f swallowed drink large quantities of water or milk and follow with milk of magnesia or vegetable oil and a physician KEEP OUT OF REACH OF CHILDREN CAUTION Use only distilled water in the battery Tap water will shorten the service life of the battery
24. ed If you notice any undesirable operating symptoms while using a gasoline that contains alcohol or one that you think contains alcohol switch to a gasoline that you know does not contain alcohol 18 4 Check the air cleaner elements 1 Raise the rear body 2 Remove the two wing nuts to remove the air cleaner cover and air cleaner elements If the elements are dirty follow the cleaning procedure described on page 39 AIR CLEANER COVER NUTS AIR CLEANER ELEMENTS 5 Check brake lining wear Inspect brake lining condition every time the riding mower is used Firmly set the parking brake and then check the position of the brake wear in dicator If the indicator is near the wear limit take the riding mower to an Authorized Honda Power Equipment Dealer for repair CAUTION Under no circumstances should the riding mower be operated if the brake lining is at the service limit PARKING BRAKE LEVER BRAKE WEAR INDICATOR WEAR LIMIT POINT 19 6 Deck primary belt and blade belt inspection Wear or damage 1 Lower the cutter deck as far as it will go with the cutter deck height ad justing lever 2 Inspect both belts for wear and damage If the belts are worn or damaged replace them according to the instructions on pages 47 50 Blade belt tension 1 Move the P T O lever to the ON Engaged position 2 Raise the cutter deck as far as it will go with the cut
25. ere the engine is refueled or where gasoline is stored Do not overfill the fuel tank there should be no fuel in the filler neck After refueling make sure the tank cap is closed properly and securely Be careful not to spill fuel when refueling Spilled fuel or fuel vapor may 19 nite If any fuel is spilled make sure the area is dry before starting the engine Avoid repeated or prolonged contact with skin or breathing of vapor KEEP OUT OF REACH OF CHILDREN GASOLINES CONTAINING ALCOHOL If you decide to use a gasoline containing alcohol qasohol be sure it s octane rating is at least as high as that recommended by Honda There are two types of gasohol one containing ethanol and the other containing methanol Do not use gasohol that contains more than 10 ethanol Do not use gasoline containing methanol methyl or wood alcohol that does not also contain cosolvents and corrosion inhibitors for methanol Never use gasoline contain ing more than 596 methanol even if it has cosolvents and corrosion inhibitors NOTE Fuel system damage or engine performance problems resulting from the use of fuels that contain alcohol is not covered under the warranty Honda cannot endorse the use of fuels containing methanol since evidence of their suitability is as yet incomplete Before buying fuel from an unfamiliar station try to find out if the fuel con tains alcohol if rt does confirm the type and percentage of alcohol us
26. es special efforts on your part to ensure your safety and the safety of others Know these requirements before you operate the riding mower SAFE OPERATING RULES Always make a pre operation inspection before you operate the riding mower you may prevent an accident or equipment damage All parts especially guards and shields should be in good condition and securely fastened in place Be sure all nuts bolts and screws are tight especially the blade mounting bolts Do not remove any guards warning labels Shields or safety devices they are installed for your safety Know how to stop the engine and blades TM Thoroughly understand operation of all controls Never permit anyone to operate the riding mower without proper instructions Do not allow passengers to ride on mower of its attachments Children should not be permitted to operate this riding mower Because of the danger of carbon monoxide poisoning do not run the engine indoors To prevent serious injury never put your hands or feet under the cutter deck Do not operate the riding mower while barefoot Wear sturdy shoes Or boots and clothing that is not loose Be alert Do not operate the riding mower when you are tired ill or under the influence of alcohol or drugs Mow only in daylight or good artificial light Watch out for and avoid rocks roots holes and other obstacles If you hit an object stop and inspect the riding mower fix a
27. icated by the arrow TENSIONER ARM KNOB BRACKET CAUTION Wear heavy gloves to protect your hands when replacing the blade belt and don t put your hands between the pulleys Grasp the knob on the tensioner pulley firmly and return the tensioner arm slowly don t let it snap back Remove the belt guide plate by removing the two 8 mm bolts Remove the two belt guide bolts and remove the deck belt The installation sequence is essentially the reverse order of removal BELT GUIDE BOLTS 8 mm Oc o BELT GUIDE PLATE TEMSIONER ARIVI DECK BELT 48 Blade replacement Remove the cutter deck see pages 34 thru 36 2 Remove the pulley covers by removing the one 8 mm bolt and three 8 mm nuts Pull the A portion of the blade belt toward the direction indicated by the ar row and remove the blade belt from the pulley A Install a new blade belt in the reverse order of removal Rotate the pulley to check that the belt moves smoothly after assembly 8 mm NUT 31 PULLEY COVERS 8 mm BOLT PULLEY BLADE BELT A 49 9 Primary replacement CAUTION Wear heavy gloves to pratect your hands when replacing the belt 1 Remove the cutter deck see page 34 thru 36 2 Remove the primary belt from the pulley on the belt tensioner arm while pressing out on the arm by hand Then remove the primary belt from the pulley on the engine 3 Rem
28. ition NOTE When the engine 15 warm or the air temperature is high move the throttle to SL OW START CHOKE 23 ns D S U rH 4 Turn the engine switch to START CAUTION Do not use the starter motor for more than 5 seconds If the engine fails to start release the key and wait at least 10 seconds before operating the starter motor again 5 After the engine starts let the engine switch return to ON 6 After the engine warms up move the throttle lever to the SLOW position 24 7 Seat safety switch operation check 1 Move the lever to ON Engaged Rise off the seat the engine should stop immediately 2 Return the P T O lever to OFF Disengaged and restart the engine Release the parking brake and place the shift lever in the 1st speed range While driving slowly rise off the seat the engine should stop immediately CAUTION Perform this check on level ground never on a slope 25 Mowing Before operating this riding mower you should read and Ipage 4 4 understand the safe operating rules See CAUTION In tall grass first mow with the cutter deck fully raised 3 this will expose any hidden obstacles When you are sure the area is completely cleared re mow at the desired height NOTE For best resu
29. lts wait until the lawn is dry before mowing 1 Set the cutter deck height adjusting lever to the desired cutting height SET BUTTON 26 2 Move the throttle lever to the FAST position CAUTION When mowing over rough ground or on hillsides select the gear that will give a safe ground speed when the engine is operating at full throttle NOTE The riding mower can be operated at intermediate throttle settings if desired but always maintain sufficient engine speed for good pulling power and efficient blade operation Use the shift lever to select the desired driving speed range 3 Move the P T O lever to the ON Engaged position ON Engaged OFF Disengaged 27 4 Move the shift lever to select the desired gear position The clutch will engage automatically in about one second CAUTION If clutch engagement occurs immediately or takes longer than one second have the riding mower serviced by your HONDA dealer Be sure the area behind the mower is clear of people pets and other obstacles before backing up Operate the mower at low speed until you become familiar with al of its operating characteristics M UPHILL STARTING PROCEDURE If possible avoid stopping the riding mower while driving uphill However if it is necessary to stop follow this special procedure A Set parking brake B Apply pressure to the brake pedal C Move the throttle lever to mid range D Shift the
30. ng initial start up if too much oil is eft in the foam Paper element Tap the element lightly several times on hard surface to remove excess dirt or blow compressed air through the filter from the inside out Never try to brush the dirt off brushing will force dirt into the fibers WING NUTS 41 3 Spark plug service Recommended spark plug 5 5 W16EPR U ND To ensure proper engine operation the spark plug must be properly gapped and free of deposits 1 Raise the rear body and remove the spark plug cap 2 Clean any dirt from around the spark plug base 3 Use a spark plug wrench to remove the spark plug SPARK PLUG CAP SPARK PLUG WRENCH 4 Visually inspect the spark plug Discard it if the insulator is cracked chipped Clean the spark plug with a wire brush if it is to be reused Measure the plug gap with feeler gauge The gap should be O 7 0 8 mm 0 028 0 031 in Correct as necessary by carefully bending the side electrode 0 7 0 8 mm 0 028 0 031 in 42 6 Thread the plug in by hand to prevent cross threading m LTO 7 7 After a new spark plug has been seated hand should be tightened 1 2 turn with a wrench to compress its washer If a used plug is being reinstalled it should only require 1 8 to 1 4 turn after being seated CAUTION e The spark plug must be securely tighten
31. ngine will smoke at start up this is normal 37 7 MAINTENANCE e Shut off the engine and set the parking brake before performing maintenance To prevent accidental start up remove the engine switch key and disconnect the spark plug cap e The riding mower should be serviced by an authorized HONDA dealer unless the owner has proper tools and service data and feels he is mechanically qualified CAUTION Use only genuine Honda parts or their equivalent for maintenance or repair Replacement parts which are not of equivalent quality may damage the riding mower Periodic inspection and adjustment of the Honda HT R3811 is essential if high level performance is to be maintained Regular maintenance will also ensure a long service life The required service intervals and the kind of maintenance to be performed are described on the following page ENGINE SWITCH SPARK PLUG CAP 38 MAINTENANCE SCHEDULE REGULAR SERVICE PERIOD ITEM Ferform at every indicated month or aperating hour interval whichever comes first Scat switch oporation Check Cooling air intake Clean Parking brake buzzer operation Check Check level Engine oil Change _ 9 ir cCicaner Clean 9m B Check lavel attery electrolyte Y Y Check level and gravity Check Deck belt Adjust Primary belt blade belt Check Grass bag nptianal parti Foot brake Check Blade bolt tighteness
32. ny damage before you operate the mower again Replace damaged worn or broken parts immediately Do not operate near the edge of a ditch or an embankment BEFORE MOWING Before mowing always clear the lawn of stones sticks and other debris These objects could be thrown out by the spinning blades and cause an in jury or equipment damage select a safe operating speed gear position for the area to be mowed 5th gear should be used only while driving to and from the storage area Always ensure that the area in front of and behind the riding mower is clear of people pets and debris before starting Be very careful when you operate the riding mower in Reverse Do not mow in Reverse unless it is absolutely necessary OPERATION ON SLOPES This riding mower is intended for use on relatively flat terrain Do not use on sloped surfaces exceeding degrees 1 796 grade This angle be fur ther reduced by the condition and type of surface Maximum safe operating angle 10 MAX MAXIMUM 10 17 GRADE f mowing on sloping surface always drive up and down the face of the grade Never turn or drive across the face of the slope To prevent loss of control or overturning always reduce speed and exer cise extreme caution when operating on sloping or uneven surfaces Avoid turning or stopping on sloping surfaces see page 28 special instructions Do not back down or rapidly accelerate up
33. om a steady buzz to an on and off beep when the parking brake is released stop the engine immediately and check the engine level PARKING BRAKE LEVER SET BUTTON WARNING BUZZER 13 B Parking brake lever This lever is used to set the brake when the riding mower is parked Pull the lever fully up unti the ratchet locks NOTE The parking brake lever does not operate the automatic clutch Always put the transmission in neutral or turn off the engine switch before setting the parking brake steady warning buzzer will sound if the parking brake is engaged while the transmission is in gear and the engine switch is ON CAUTION When washing the riding mower do not allow water to get into the warn ing buzzer holes a Never park the riding mower on a slope To release pull the lever up slightly and press the lever set button lower the lever while holding the button in Operating the riding mower with the parking brake set will result in severe damage to the brake lining and could lead to a complete brake system failure PARKING BRAKE LEVEH SET BUTTON WARNING BUZZER 14 4 PRE OPERATION CHECKS To prevent accidental start up remove the engine switch key and disconnect the spark plug cap before performing the pre operation inspection 1 Make sure the cooling air intake screens are clean CAUTION If the cooling air intake screens are blocked the engine may overheat REAR BODY
34. om the engine switch whenever the riding mower is unattended to prevent children or unauthorized persons from starting the engine This riding mower is equipped with an automotive type ignition switch which controls all the electrical circuits The switch is located on the right hand side in front of the gear shift lever Key positions START to start the engine ON to run the engine after starting OFF tostop the engine ENGINE SWITCH NOTE The starter motor will not work unless the shift lever is in NEUTRAL and the P T O lever is in the OFF Disengaged position 2 hrottle lever The throttle lever controls engine speed from SLOW idle to FAST max speed START CHOKE is for starting a cold engine 10 gt 3 Cutter deck height adjusting lever This lever is used to raise and lower the cutter deck To adjust the cutting height squeeze the handle lock and then press in and hold the set button Raise or lower the lever until the desired cutting height appears on the in dicator At that point release the set button and the handle lock Be sure the handle lock returns to its normal position when released Cutting height 1 0 1 5 2 0 2 5 3 0 3 5 in Approx CAUTION To avoid damage to the cutter deck always raise it fully when driving the lawn tractor to and from the mowing area this provides maximum ground clearance To void damaging or disabling the handle locking mechanism never
35. ove the tensioner arm by removing the 10 mm bolt and remove the primary belt by pulling it out by hand 4 Install a new primary belt Install the remaining parts in the reverse order of removal PULLEY Engine side PRIMARY BELT TENSIONER PULLEY TENSIONER ARM TENSIONER ARM 19 mm FLANGE BOLT 50 10 Blade inspection sharpening and replacement Never attempt to change a blade while the engine is running Remove the ignition key from the ignition and disconnect the spark plug cap to prevent accidental start up CAUTION Always wear heavy gloves to protect your hands when working with the cutter blade B Blade inspection 1 Remove the cutter deck from the riding mower see page 34 thru 36 2 Inspect the blade for cracks bends or signs of wear If the blade is bent damaged or badly worn replace it CAUTION Use only genuide Honda replacement blade their equivalent FLAT PART OF BLADE HET QO m O LIFT Replace LIFT WEAR Replace CRACK WORN OR DAMAGED lf the lift of the blade is worn or damaged the mower cannot cut evenly Replace If the is bent the mowar cuts C LN unevenly and the blade may interfere with the cutter deck x Replace 51 B Blade sharpening CAUTION Always wear heavy gloves to protect your hands when working with the cutter blade 1 Remove the cutter deck isee page 34 thru 36 and turn it upside down 2 Remove the blade
36. r deck upside down Clean the underside of the deck with water and dry thoroughly 6 For longer service and greater efficiency keep the underside of the mower housing clean and free of accumulated grass clippings by washing it down with a hose after use and or cleaning it with a wire brush and scraper Remove any rust and apply rust resistant paint Cleaning and rust prevention are especially important before seasonal storage 7 Reinstall the cutter deck by reversing the removal procedure f P T O CLUTCH _ LOCK 14 mm LOCK PIN 7 mm 8 Store the riding mower on a level surface dry dust free area with the parking brake lever set 9 Cover the riding mower to keep out dust 10 Check tire air pressure regularly during storage and inflate if necessary 36 Removal from storage 1 Check the battery electrolyte level 21 Fully recharge the bat tery and install it in the riding mower 2 Remove the spark plug and check that it is clean and properly gapped see page 42 Turn the engine a few revolutions with the starter motor before reinstailing the spark plug 3 Thread the spark plug as far as possible by hand then tighten it 1 8 to 1 4 turn further with the plug wrench 4 Check the engine oil level see 16 5 Fill the fuel tank and start the engine by following the starting instructions see NOTE If the cylinder was coated with oil the e
37. rst pass then cut to desired height on second pass 4 Grass bags full Empty grass bags Optional part Blades do not rotate or stop 1 Blade belt worn or broken Replace with new belt see p 47 50 2 P T O lever malfunction 9 See your authorized HONDA dealer Riding mower does not move or clutch does not engage properly when the transmission 15 shifted into gear 1 Faulty clutch assy e See your authorized HONDA dealer 2 Transmission does not See your authorized HONDA dealer shift gear 3 Abnormal clutch engage See your authorized HONDA dealer ment 57 9 SPECIFICATIONS MODEL HT R3811 Power produ cts MABT description code ENGINE Model GXV340 4 stroke overhead valve 1 cylinder 337 cm 20 6 cu in 82 x 64 3 2 x 2 5 in Displacement Bore and stroke Ignition timing 20 BTDC Ignition system Transistorized magneto Cooling system Forced air Engine oil capacity Spark plug FRAME Dimensions Length x Width x Height 1535 x 1260 x 1000 mm 60 4 x 49 6 x 39 4 in 1 1 1 2 US qt BPR5ES W18EPR U Wheel tread Front 570 mm 122 4 Rear 635 mm 25 0 in Wheel base 1100 mm 43 3 in Cutting width 970 mm 38 0 in Cutting height 1 1 5 2 214 3 31 in
38. service department If you have a warranty problem that has not been handled to your satisfaction we suggest you take the following action Discuss your problem with a member of dealership management Often complaints can be quickly resolved at that level If the problem has already been reviewed with the Service Manager contact the owner of the dealership or the General Manager f your problem still has not been resolved to your satisfaction contact the Power Equipment Customer Relations Department of American Honda Motor Co Inc American Honda Motor Co Inc Power Equipment Customer Relations Department Box 50 Gardena California 90247 0805 Telephone 213 604 2400 We will need the following information in order to assist you Your name address and telephone number Product model and serial number Date of purchase Dealer name and address Nature of the problem After reviewing all the facts involved you will be advised of what action can be taken Please bear in mind that your problem will likely be resolved at the dealership using the dealer s facilities equipment and personnel so it is very important that your initial contact be with the dealer Your purchase of a Honda product is greatly appreciated by both your dealer and American Honda Motor Co Inc We want to assist you in every way possible to assure your complete satisfaction with your purchase 60
39. sloping surface see page 28 for special instructions e When mowing on slopes empty the grass bags when they are half full On a slope the weight of full bags may cause the mower to tip over CLEANING AND STORAGE Leaves grass clippings oil and other combustible materials can become fire hazard Be sure to keep the engine compartment the upper cutter deck surfaces and the belt and pulley areas clean Stop the engine before removing the grass bags or cleaning the discharge chute Check the condition of the grass catcher bags frequently For your safety replace any bag that is worn or deteriorated e Always empty the grass catcher bags when mowing is completed Damp decomposing grass clippings generate heat and can become a fire hazard To reduce the possibility of fire allow the engine and exhaust system to cool before storing the mower in an enclosed space or near combustible materials 2 COMPONENT IDENTIFICATION STEERING WHEEL PARKING BRAKE LEVER SEAT SHIFT LEVER ww i ee BRAKE PEDAL THROTTLE LEVER DISCHARGE CHUTE WARNING BUZZER POWER TAKE OFF LEVER DECK HEIGHT ADJUSTING LEVER CUTTER DECK Raise Engine compartment AIR CLEANER FUEL FILLER CAP FUEL VALVE BATTERY SPARK PLUG OIL DRAIN PLUG OIL FILLER CAP LOCATED ON THE FRAME 3 CONTROLS Engine switch Always remove the key fr
40. ter deck height ad justing lever 3 If the index mark on the tensioner arm aligns with or goes inward past the wear indicator on the cutter deck adjust the belt tension according to the instructions on PRIMAHY BELT CUTTER DECK DECK BELT INDEX MARK TENSIONER ARM s CUTTER DECK WEAR INDICATOR 20 ss 7 Check the battery Raise the rear body remove the battery cover and check the battery elec trolyte level The electrolyte level must be maintained between the upper and lower level lines on the side of the battery If the electrolyte level is low remove the battery filler caps and carefully add distilled water to the upper level line WARNING The battery gives off explosive gases keep sparks flames and cigarettes away Provide adequate ventilation when charging or using batteries enclosed space battery contains sulfuric acid electrolyte Contact with skin may cause severe burns Wear protective clothing and a face shield f electrolyte gets on your skin flush with water f electrolyte gets in your eyes flush with water for at least 15 minutes and call a physician immediately e Electrolyte is poisonous If swallowed drink large quantities of water milk and follow with milk of magnesia or vegetable oil and a physician e KEEP OUT RE
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