Manual B - Northern Tool + Equipment
Contents
1. 51 Jenitton 52 10 Stator and Rotor disassembly 7 reassembly nasse Re PEE Ede EEGEN 53 EE 53 10 2 Stator Remo al REaSSCMDLY ass e e nee EU 54 UC DEINEN WE iat tata 55 Rocker 58 12 LC vhnder Head Removal DEAE 58 12 2 Cylinder Head Disassembly and eene ee eee ei ages 59 AD WMS OC COM ODDS 60 ee ESD Sea DEI LU EN RETR 61 IT lt amshalt and dacs n es D de ea doe N Kerns 61 DZA iment otimme marks ae 62 5 56 is Dee on E E Eee 63 15 4 Piston 7 C onte COM 100 eek 64 4 PH3100Ri SM Revision 11 09 2010 PH3100Ri SM Revision 11 09 2010 1 SPECIFICATIONS 1 1 SPECIFICATIONS Dimensions weights PH3100Ri Overall Length 24 in 610mm Overall Width 18 in 457mm Overall Height 18 3 in 464mm Net Weight 129 Ibs 59 kg Engine Maxmumhorepowe 60000 Spark plug F RTC Horizontal Float type Semi dry type Electronic control Alternator Alternator type Multi pole rotation type Alternator structure Self ventilation drip proof type Self exciiation Magnet tyes Single phase R2. ee ea tee 21 3 11 Measuring stator output voltage while 22 3 12 No DC output at battery charge receptacle iussi u a a 23 3 13 Battery Wil nob CAR OS nn a ee 23 SN SUNT EE 25 2 15 Engine will not shut off with ignition key remote or stop button ssneensessssssssssssssseseeerrerssssssssssssseeeereressssssss 26 3 16 Engine will not start or stop with ee a I 21 3 17 Engine will struggle when shut off with key or remote but keeps running rough 28 SS Encme willstartand then SHU COW EE 29 4 Maintenance a DUE Ox 30 4 4 euere 30 A Checkin ne Oi lev Ts m m m TTE 31 48 BR ENNEN 32 AEG TIC lowcotl Sensor Anette 33 BIS AMET 34 3 PH3100Ri SM Revision 11 09 2010 2 P a ee Um TN 35 s NU 36 4 5 Evaporavion 36 T S SIC t
3. Piston pin outer diameter Standard 17 994 18 000mm 0 70847 0 7087 17 95mm 0 7067 66 PH3100Ri SM Revision 11 09 2010 Piston pin hole inner diameter Standard 18 002 18 008mm 0 7087 0 7090 18 05mm 0 7106 Connection rod small end inner diameter Standard 18 006 18 017mm 0 7089 0 7093 18 08mm 0 71187 Connection rod big end inner diameter Standard 33 020 33 033mm 1 3000 1 3005 33 09mm 1 303 6 PH3100Ri SM Revision 11 09 2010 Crankshaft neck outer diameter Standard 32 967 32 980mm 1 2979 1 2984 32 90mm 1 295 Standard 0 1 0 4mm 0 0047 0 016 0 8mm 0 030 68 PH3100Ri SM Revision 11 09 2010
4. Rubber bowl Seal Emulsifier Tube Main Jet q Fuel Bowl Retainer 44 PH3100Ri SM Revision 11 09 2010 7 Control panel 7 1 Disassembly Installation Remove 6 Mounting Screws 120V 20 amp 30 12V DC Circuit amp Circuit Breakers Ignition Switch Indicator oh Module H K e d Ir Sp A Sa C E 3 Hour Meter E le cgi 2 Ta E hs a 15 30 Remote and Economy lenition K 120 20 Switches Sat Duplex Overload and 5 20 Stop Buttons 45 PH3100Ri SM Revision 11 09 2010 8 Outer generator housing 8 1 Disassembly Installation Gas Cap m Sight Rubber Grommet gt Rubber Grommet A Folding Handle Clips Fuel Gauge Handle Screw Handle Carbon Canister Starter Solenoid Right Cover Oil Access Cover Fold Over Handle DC Voltage Regulator Battery Fr s Sai Ka Short Sponge Fuel Knob Control Panel Swivel Wheel Maintenance Cover 46 PH3100Ri SM Revision 11 09 2010 9 Recoil starter Disassembly Reassembly Em Drain all gasoline from the fuel tank before disassembly Keep the unit away from all heat flame and sparks Disconnect the battery Remove front panel Drain all gasoline from the fuel tank Remove the inverter Remove 3 M6 flange bolts and the recoil starter Reinstall the inverter and e
5. easet ee 10 2 2 1mpPortanksalety rusa 10 Dee DICE VIC C TUE p 11 2 4 Serial nuinbsr Eu uS 12 2 9 Standards income 12 PAK CN Foro X 14 E cars S A 14 J lel amet ee 14 General syriptoms and possible ee 14 SNE 15 C hec Ee 16 DA 8 HOT 17 3 5 Engine oil levels low but engine does ae u radii a a 19 3 6 Engine stops running Throttle is in the correct position nsns nnne nns 19 3 7 Engine speed can t increase or is unstable choke 15 in the correct 20 3 8 Engine speed TOO or 100 OW eet A 20 3 9 Engine speed doesn t increase with economy system ON and a load 21 E
6. 204 FUSE WHITE WHITE RED BLACK 104 WHITE WHITE BLUE lig RED BLACK RED BLACK 158 GROUNDING SS I REGULATOR NENNEN RED 2 STOP RED iw SNOT LO WHITE WHITE CONTROLLER ON GRAY 20 7 RELAY BATTERY E Ok SENSOR IGNITION STARTER pu BLACK SWITCH REMOTE CONTROLLER RECEIVER MOTOR YELLOW GREEN 14 BLACK 1 REMOTE CONTROL SAATON WHITE WHITE 2009 11 17 1 4 Wiring Diagram with electric choke solenoid beginning with S N 100602380706001 PH3100RI WIRING DIAGRAM ae 71 SOCKETS BLACK 12 WHITE P AC BREAKERS BLACK 12 WHITE GRAY 30A p N e A YELLOW GREEN 14 WHITE 2 WHITE 208 PINK 20 ee oo u OVERLOAD j CURRENT BLACK 14 BLACK 20 ao Hr mzmo YELLOW GREEN 14 70 m 4 Gi INDICATOR eee BLACK ie 5 BLACK 204 GRAY 208 1 STOP BUTTON RED sur an VELLOW GREEN BREAKER FROM CONTROL PANEL CHOKE GREEN BLACK 160 4 H BLUE 20 SECHER TOGROUND RED RED BFP RED BLACK 20 OUVERTE CC MEME SOLENOID BLACK 20 RED RED REEN BLACK 1 WHITE WHITE BLUE 164 1 Gi 204 FUSE VALVE RED BLACK 16 a WHITE WHITE RED SLACK 16 fon RED BLACK 16 GROUNDING
7. wen STOP REMOTE CONTROLLER ei IGNITION RED 16 WHITE 209 BLACK SWITCH RED 19 GRAY 20 RELAY carrer OIL SENSOR STARTER REMOTE CONTROLLER RECEIVER MOTOR BLACK 10 YELLOW GREEN Su gt RED 2 THE BATTERY UEM E se WHITE REMOTE CONTROL SWITCH WHITE WHITE 2010 04 20 2 Service information 2 1 The importance of proper servicing Proper servicing is essential to the safety of the operator and the reliability of the engine Any error or oversight made by the technician while servicing can easily result in faulty operation damage to the engine or injury to the operator AA Warning Improper servicing cause unsafe condition that can lead to serious injury or death Follow the procedures and precautions in this shop manual carefully Some of the most important precautions are given below However we cannot warn you of every conceivable hazard that can arise in performing maintenance or repairs Only you can decide whether you should perform a given task Failure to follow maintenance instructions and precautions can cause you to be seriously hurt or killed Follow the procedures and precautions in this shop manual carefully 2 2 Important safety precautions Be sure you have a clear understanding of all basic shop safety practices and th
8. Replace the inverter unit 3 10 No or low AC output n Disconnect the load and reset the Is the overload indicator light inverter OFF Is the engine speed normal Abnormal Economy switch Perform the throttle control system test ON 2500 100 rpm OFF 3600 100 rpm Stop the engine and check the Abnormal Replace the receptacle Normal Disconnect the 6P connector between the inverter and stator unit pull the recoil starter with force and measure the AC voltage between the 1 Check and repair stator wire black terminals and white terminal Abnormal harness or replace stator 2 Rotor inner magnetism Black Black Black gt 30V decreased replace the rotor White White gt 1V Normal Abnormal Measure stator output with unit running Replace stator 21 PH3100Ri SM Revision 11 09 2010 3 11 Measuring stator output voltage while running 6 Pin Stator Receptacle 6 Pin Stator Connector White Sub Windings 3 amp 6 Black Phase Wires 1 2 amp 4 1 Unplug the connector from the inverter and start the engine check voltage between pins 1 amp 4 between pins 2 amp 4 and between pins 1 amp 2 Note the engine will be running at a high RPM 2 They should be approximately 300vac at each test with the engine running at high speed If one or more of the three tests fail the problem is either a damaged wire harness or a defective alternator If the wir
9. Small end I D 18 006 18 01 mm 18 08mm Connecting 0 7089 0 7093 0 71187 as 33 020 33 033mm 33 09mm 9 1 3000 1 3005 1 303 32 967 32 980mm 32 90mm Crankshaft Crank pin O D 1 2979 1 2984 1 295 0 10 0 02mm Valve 0 004 001 0 15 0 02mm 0 006 001 ES 6 465 6 480mm 6 40mm 0 2545 0 2551 0 2520 values Stem O D o clearance 6 455 6 470mm 6 40mm 0 2541 0 2547 0 2520 6 500 6 530mm 6 56mm Suse NER 0 25597 0 2571 0 2583 oeat width IN EX 0 8mm 0 037 1 8mm 0 077 Valve pem Free 39 1mm 1 54 3 5mm 1 48 31 700 31 780mm 31 0mm Cam wheel wheel Cam 1 2480 1 2512 1 2205 mn san Carburetor Float height L 1 _ screw opening Fixed 0 6 0 mm Ignition Resistance 14 200 2 11 0 15 0K0 13 PH3100Ri SM Revision 11 09 2010 2 6 Motor Pat Wirecolor Standard Q DC winding blue blue 0 045 0 070 Sub winding white white 0 100 0 160 black black black 0 250 0 350 2 Torque values M Tightening torque M6 Blot nut 5 9 7 4 ries M8 Bolt nut 14 8 17 0 18 22 M10 Bolt nut 40 6 44 3 55 60 Note Use standard torque values for fasteners that are not listed in this table 3 Trouble shooting 3 1 General symptoms and possible causes Carburetor faulty Inspect disassemble and clean Engine speed Economy s
10. Circuit Breaker ap and DC Receptacle To Ignition f Switch Chassis Ground Starter Terminal Solenoid Spade Terminal Harness Plug to DC Stator Charge Windings 24 PH3100Ri SM Revision 11 09 2010 3 14 electric start Measure battery voltage Charge battery Norma Abnormal Normal Check the ground between the relay Abnormal Repair ground engine and control panel Normal Abnormal Check the starter relay Replace the starter relay Normal Abnormal Beast Replace the starter motor Normal Check repair or change main harness wires Motor Cable from Starter Solenoid Battery Terminal Starter motor Terminal Start Wire from Ignition Switch Starter Solenoid Chassis Ground 25 PH3100Ri SM Revision 11 09 2010 2 15 Engine will not shut off with ignition key remote or stop button For safety we recommend turning off the fuel valve instead of pulling off the spark plug wire What to check for 1 Turn on the fuel valve and restart the engine 2 Using a volt meter check the battery charge receptacle There should be between 12 and 14 volts DC If no voltage is present check all connections to and from the voltage regulator Check to make sure that there is good ground between the voltage regulator ground wire engine and control panel bad ground will prevent the unit from shutting down 4 Locate and unplug the tw
11. Starter Cup Cable Retainer Clip and Bolt 54 PH3100Ri SM Revision 11 09 2010 11 Exploded engine view 8 SS CV vv Ch S V v 72 L 2 2 ES d BT Ze 1477 gt gt ff HE ha y 238 gt 7 ne EA 4 e ID j E wih d 1 d 2 m d d k 4 1 OL us ee SAL lt amp DY OOO os A 5 2 f a gt B kA i Pr ei J gt SS ZC z ze R Ze y Ian a 700 i E 4 ye z c e LS 09 cS f 4 E at ren T7 vd A 3 re a 6 8v lt gt SS Fit Y d Zr Th Th y 4 X uns LV Sc 6L Oc LC Lc N 1 ud 4 5 d 4 m if vc ce Vl 9c GL ZL 9L 8 LE 9 GEOP VE gc DE 6 LE CE 55 PH3100Ri SM Revision 11 09 2010 177 Engine Parts List NO Description ERP NO Stk No Qty 177010010300 Engine cover gasket 69258 69259 Dipstick gasket 69260 Drain bolt Drain bolt gasket 10 seal 30x46x8 69261 11 Low oil sens
12. Standard 39 1mm 1 547 37 5mm 1 48 Valve seat width Standard 0 8mm 0 03 1 8mm 0 07 bad Valve stem outer diameter ___ Standard Inlet valve 6 465 6 480mm 0 2545 0 2551 6 40mm 0 2520 Exhaust valve 6 455 6 470mm 0 254 1 0 2547 6 40mm 0 2520 60 PH3100Ri SM Revision 11 09 2010 13 Crankshaft Piston 13 1 Crankshaft camshaft and piston Piston and Rod 4 SN S Front Engine Seal Front Crankshaft Lifters Bearing Low Oil Sensor Crankshaft Rod Bolts Lower Rod 61 PH3100Ri SM Revision 11 09 2010 13 2 Alignment of timing marks Use marks to align camshaft gear and timing gear during installation Crankshaft Gear 62 PH3100Ri SM Revision 11 09 2010 13 3 Camshaft Inspection Height of camshaft SS Standard Service limit Intake Exhaust 31 700 31 780mm 1 24807 1 2512 31 0mm 1 2205 63 PH3100Ri SM Revision 11 09 2010 13 4 Piston Connection Piston pin clip ring Assembly of piston rings Caution C qup Clip ring Installation set the front end in the piston groove and clamp the other end Install the ring clip by revolving Make sure that the gap of the ring clip is not in line with the groove in the piston
13. 38 eS Park ALLE toutou Dodo Lodo acted an cda 38 BAR idc cm Q 39 e dli T 40 Disassembly 7 Installatiot oE C arDUFCLOE u na 40 6 2 Disassembly Installation On Step 1007 222 Ba Chl tei e he SE ado bct ale 4 0 9 SIC DITHOLOE THSDOC HODU oci Dota a KO 41 6 Fuel Shuto 1 ann I ke 42 6 5 Backfire controller BFP 6 6 Automatic choke 42 6 6 Automatle chokerasse nenne ee ae ea 43 6 7 ee ee 44 EE a 45 a E 45 So uter Deherdtar debit 46 8 1 Disassemb1V Installationen Re 46 Reco Starter 7 Disdssembly Reassembls ae t 47 E MINS EE 48 9 2 elek ao L on Hanse E AAN 49 50 InspectiOBam s EEE
14. Piston w rings 15100NO8FF10 49 52 e Tan 3 s 1 a _ eomectnerosbor 2 e 57 PH3100Ri SM Revision 11 09 2010 12 Valve cover Rocker arm 12 1 Cylinder Head Removal Drain all gasoline from the fuel tank before disassembly Keep the unit away from all heat flame and sparks Disconnect and remove the battery Remove the front and rear end panels and the left and right side panels Remove the upper frame and the fuel tank as an assembly tha invartar tha narlhiirantar accamhlu 1 2 3 A rm Muffler Case A Exhaust Manifold Lower Engine cover 58 PH3100Ri SM Revision 11 09 2010 Remove the valve cover and 4 10 head bolts Cylinder Head Alignment EES Head Bolts Sleeves Valve Cover y Km 18270 Valve Cover Bolt Valve Cover Gasket d EA and Rubber Seal Head Gasket 12 2 Cylinder Head Disassembly and Reassembly Valve Guide Exhaust Valve Tappet Sa gt Be OF en en we 977 m i Pa SCH 9 Oy ey Valve spring Rocker arm Retainer Stud Push Lock Nut Rod Rocker Arm Pivot 59 PH3100Ri SM Revision 11 09 2010 12 3 Inspection Free length of valve spring
15. arrestor A CAUTION e f the generator has been running the muffler will be very hot Allow it to cool before proceeding e The spark arrester must be serviced every 100 hours to maintain its NOTE efficiency 1 Remove the exhaust grill to access the spark arrestor Reinstall the spark arrester ob Reinstall the exhaust grill 38 Remove the clamp holding the spark arrester to the muffler Clean the spark arrestor with a stiff wire brush E Replace the spark arrestor if the wire mesh is perforated or torn Spark Arrestor Exhaust Grill VI n aw IW n SC Ke IA PH3100Ri SM Revision 11 09 2010 5 2 Muffler Disassembly Reassembly 1 N Disconnect battery Remove the front and rear end panel the side panels and the fuel tank cover Remove upper frame with fuel tank as one assembly Remove the muffler cover Remove the muffler Carefully note the various length bolts and spacers during removal and reassembly Upper Frame and Fuel Tank Muffler Cover Bolts Spacer _ Or 1 a M8x170 Spacer 8 150 Secondary Air valve 39 PH3100Ri SM Revision 11 09 2010 6 Carburetor 6 1 Disassembly Installation of Carburetor Drain all gasoline from the fuel tank and the carburetor before disassembly Keep the unit away from all heat flame and spar
16. tighten the screws securely Air Cleaner Cartridge SE a a Tr FR i M E A LJ VII 1 gt A dirty air cleaner will restrict air flow to the carburetor reducing engine performance If the engine is operated in dusty areas clean the air cleaner more often than specified in the Maintenance Schedule Never run the engine if there is no element or if the filter is damaged as it will cause serious damage to the engine 34 PH3100Ri SM Revision 11 09 2010 4 6 Spark plug Inspection Cleaning 1 Remove the spark plug cap and remove the spark plug 2 Remove carbon or other deposits with a plug cleaner or stiff wire brush Check the sealing washer for damage 3 Measure the plug resistance replace the spark plug if the resistance is outside of these values Spark plug resistance 4 Measure the plug gap with a wire type feeler gauge Adjust by bending the side electrode if the measurement is not within the specified clearance Spark plug clearance 0 6 0 7mm 0 024 0 028 Standard spark plug F7RTC 0 6 0 7 5 Install the plug finger tight to seat the washer and then tighten with a plug wrench Torque valve is 8 9 11 Ibf ft 12 15 Nm 35 PH3100Ri SM Re
17. POWERHOUSE POWERHOUSE POWER PRODUCTS PH3100Ri SHOP MANUAL Coast Distribution System August 2010 1 PH3100Ri SM Revision 11 09 2010 This manual covers the construction function and servicing procedure of the POWERHOUSE PH3100Ri generator certificated by CARB Careful observance of these instructions will result in better safer service work All information illustrations directions and specifications included in this publication are based on the latest product information available at the time of approval for printing Coast Distribution Systems Inc reserves the right to make changes without incurring any obligation whatsoever No part of this publication may be reproduced without written permission 2 PH3100Ri SM Revision 11 09 2010 5 1 SPECIFICATIONS PREFACE 2 22 ee 2 CONTENT ee 3 RR 6 1 1 SPEGCIPIGA TIONS see E 6 Z CARA TERS TCS isaac ee ea a een 7 1 3 Wiring Diagram w o electric Choke solenod 8 1 4 Wiring Diagram with electric choke solenoid beginning with S N 100602380706001 9 De DCV CE 10 2 Ihe 1Mporlance PLOper
18. ark plug cap and spark plug 2 Install acompression gauge in the spark plug hole 3 Push the remote switch to the OFF position 4 Turn the ignition switch to the start position and measure the cylinder compression Cylinder compression 0 45Mpa 65 psi 800 Pressure Gauge V LH Em Ba A A A des a EET Sn uni f KA Remote Switch 16 PH3100Ri SM Revision 11 09 2010 3 4 Ignition system E Fill the oil reservoir to the correct level Use 7 or equivalent spark plug H Spark plug inspection Don t pull the recoil starter or turn the ignition switch to START while touching the high tension wire Turn off the fuel valve H Pull the recoil starter several times to release the unburned gas in the cylinder with the engine switch OFF 1 Remove spark plug Install the spark plug into the plug cap Turn the ignition switch to the ON position Attach the negative electrode i e threaded part of the spark plug to your ground wire and pull the recoil starter rope to check the spark plug BCEE GER Ground Wire Spark Plug Spark Plug Spark Plug Boot Wire 17 PH3100Ri SM Revision 11 09 2010 Measure the spark plug gap and perform the spark plug test Standard clearance 0 6 0 7 0 024 0 028 No spark Perform the spark test again using a Good spark new spark plug Repla
19. at you are wearing appropriate clothing and safety equipment When performing maintenance or repairs be especially careful of the following Warning Read the instructions before you begin and be sure you have the tools and skills required to perform the tasks safely Be sure that the engine is off before you begin any maintenance or repairs This will reduce the possibility of several hazards a Be careful to avoid carbon monoxide poisoning from engine exhaust b Make sure there is adequate ventilation whenever you run the engine Be careful to avoid burns from hot engine parts and hot exhaust d Let the engine cool before you touch it e Be careful to avoid injury from moving parts Do not run the engine unless the service manual instructs you to do so When the engine is running keep your hands fingers and clothing away from moving To reduce the possibility of a fire or explosion be careful when working around gasoline Use only a nonflammable solvent not gasoline to clean parts Keep all cigarettes sparks and flames away from fuel and all fuel related parts 10 PH3100Ri SM Revision 11 09 2010 2 3 Service rules 16 Use genuine POWERHOUSE or POWERHOUSE recommended parts and lubricants or their equivalents Parts that do not meet POWERHOUSE design specifications may damage the engine Always install new gaskets O rings etc when reassembling When tightening bolts or nuts begin w
20. ce the spark plug No spark Remove the control panel Perform the Good spark spark test using a new indicator Replace the module module No spark Good spark Check the ignition switch Replace the ignition switch No spark Good spark Disconnect the low oil alarm and P Replace the low oil alarm perform spark test No spark Check the resistance of stator ignition pnormal winding Replace the stator Normal Check the ignition coil resistance and Abnormal high pressure cable high pressure Replace the ignition coil insulation cap Normal Abnormal Check the BFP controller Replace the BFP controller Normal Abnormal Check ignition coil air gap Readjust air gap Inspect or replace wire harness 18 PH3100Ri SM Revision 11 09 2010 3 5 Engine oil level is low but engine does not stop Drain out oil completely disconnect the oil Check and repair all wire sensor wire harness and check the No continuity connections Replace the continuity between black wire and the oil level alarm chassis ground Continuity Ground the white from the indicator No continuity Repair or replace the wire module to the engine block to ensure that harnesses the engine will stop when the low oil alarm lamp is lit Continuity Indicator module fault replace the module 3 6 Engine stops running Throttle is in the correct position Oil sensor ___ Check t
21. e 6 pin connector Black Black Black Resistance 0 25 0 35 2 Pin Connector from Stator to Voltage Regulator ess 6 Pin Connector from Stator to Inverter 53 PH3100Ri SM Revision 11 09 2010 10 2 Stator Removal Reassembly Drain all gasoline from the fuel tank before disassembly Keep the unit away from all heat flame and sparks Disconnect and remove the battery Remove the front and rear end panels and the left and right side panels Remove the upper frame and the fuel tank as an assembly Remove the inverter Disconnect all wires from the stator assembly Disconnect the starter motor wire and all ground wires Disconnect the BFP controller from the ignition coil and carburetor Remove 4 nuts from the engine mounting bolts 2 on each side and lift the engine assembly off of the base pan 9 Remove the ignition coil starter cup and fan EN IEEE 10 Remove the 16 cap nut from the crankshaft 11 Attach the appropriate puller to the rotor using 3 M6 bolts grade 8 8 or better and remove the rotor 12 Remove the cable retainer clip and 4 stator mounting bolts using a M5 Allen wrench 13 Reverse the procedure to reassemble Stator Rotor Rotor Nut Stator CH Ke der er I N i E 4 KIN 5 7 A 3 4 A d 5 die d 5 ir y AY of 247 AS gt 1 Intake fan
22. e harness is the problem look for and repair the damage 3 Ifthe alternator is the problem the stator will need to be replaced If all three tests are OK the problem is probably the inverter 22 PH3100Ri SM Revision 11 09 2010 3 12 No DC output at battery charge receptacle Is th d Abnormal Perform the throttle control system s the engine speed normal test Normal 22 Check the DC circuit breaker om Reset DC circuit breaker Normal Abnormal Check the wire harness and all Check the DC output connections to and from the voltage regulator Norma Check battery charge cables Replace Battery charge cables 3 13 Battery will not charge Abnormal Clean and tighten all battery Normal A i Check the DC output at the battery onetime a of the Normal Unplug the DC charge windings from the voltage regulator and measure Check the wiring harness or the resistance replace the stator Resistance 0 045 0 0700 Abnormal Normal Replace the voltage regulator DC Battery To the Charge Voltage Windings Regulator from Stator 23 PH3100Ri SM Revision 11 09 2010 1 Battery charge voltage from the voltage regulator at the starter battery should be 12 0 to 14 5 volt DC Battery charge 2 The voltage to the control panel should measure 13 to 15 volts DC Voltage Regulator V Battery charge Wire to Starter Solenoid Harness Plug to
23. e the spark plug cap or coil if there is no resistance or the value is outside of the values shown Secondary resistance 11 0 15 0 51 PH3100Ri SM Revision 11 09 2010 9 5 Ignition coil Adjustment Replacement 1 Follow step 1 through 8 as outlined in section 8 1 2 Adjust the clearance between the ignition coil and the outer magnet trigger of the rotor 3 Loosen the ignition coil bolts and Insert a feeler gauge between the ignition coil and the permanent magnet of the rotor Both sides need to be adjusted equally and retighten the bolts 4 Rotate the rotor to make sure there is no interference with the flyweights Ignition coil clearance 0 6 0 8mm 0 024 0 032 e 4 gt Ignition Coil 52 PH3100Ri SM Revision 11 09 2010 10 Stator and Rotor disassembly reassembly 10 1 Stator Inspection 1 Disconnect and remove the battery 2 Remove the front panel 3 Remove the inverter 4 Locate the 6 pin connector at the inverter and unplug it 5 Locate the two pin connector from the stator and unplug it from the voltage regulator DC charging windings Measure the resistance between the two blue terminals at the 2 pin connector Blue Blue Resistance 0 045 0 070 Sub windings Measure the resistance between the two sub winding terminals at the 6 pin connector White White Resistance 0 10 0 16 Main windings Measure the resistance between each of the main winding terminals at th
24. harness clips in the specified locations on the frame and clamp the wire harnesses Clamp the wire harnesses securely so that they do not interfere with rotating parts moving parts or hot parts Route and connect the wire harnesses as shown in the service manual Be sure that the harnesses are not loose twisted or pulled tight Route the wire harnesses properly so that they do not contact with shape edges or corners or the end of any bolts or screws lf a wire harness contacts the end of any bolts or screws or sharp edges or corners protect that part of the harness with a tube by wrapping with an insulating tape If the wire harness has grommet install the grommet securely Take care not to pinch the wire harnesses during installation of a part If a wire harness has the damaged insulation repair by winding with the electrician s insulating tape Before using the tester carefully read the manufacturer s instructions and follow the instructions in this Service Manual Be sure that the test unit s battery is fully charged and verify that the unit is operating correctly before you begin testing 11 PH3100Ri SM Revision 11 09 2010 2 4 Serial number location The generator s engine serial number identifies your particular unit and is required when ordering parts and accessories The generator serial number is also used by your dealer and Coast Distribution for warranty administration and must be supplied before any w
25. he oil level and oil sensor Fill oil reservoir to the proper m level restart the engine Sutficient oil Check fuel level Done Add fuel and restart the engine Sufficient fuel Check the fuel valve and fuel filter for Blocked Clear the fuel valve and blockage replace the fuel filter Not blocked Check the fuel supply hose for blockage Blocked Clear or replace the fuel supply hose Not blocked Check the carburetor gasket for leakage Abnormal Tighten carburetor bolts or replace gasket as required Normal Perf the thrott Abnormal Refer to step motor inspection B D EE section in service manual Normal Check ignition coil Normal Abnormal Readjust the coil clearance 1 Check the valve clearance Abnormal 2 Check the carbon deposit in Measure the cylinder compression 3 Check the piston piston ring and cylinder for damage 19 PH3100Ri SM Revision 11 09 2010 3 7 Engine speed can t increase or is unstable choke is the correct position Blocked Check the fuel filter for blockage Replace fuel filter Not blocked Blocked Check the air filter element for blockage Clear the air filter element Not blocked Inspect spark arrestor for carbon build up Blocked Remove and clean carbon deposits Not blocked Remove the spark plug and check the Abnormal Clear electrode adjust electrode clearance for carbon deposit clea
26. ith larger diameter or inner bolts first and tighten to the specified torque diagonally unless a particular sequence is specified Clean parts in cleaning solvent upon disassembly Lubricate any sliding surfaces before reassembly After reassembly check all parts for proper installation and operation Many screws used in this machine are self tapping Be aware that cross threading or over tightening these screws will strip the threads and damage the hole Use only metric tools when servicing this engine Metric bolts nuts and screws are not interchangeable with non metric fasteners The use of incorrect tools and fasteners will damage the engine B Electric precautions 1 Hold the connector body to disconnect the connector Do not disconnect by pulling the wire harness To disconnect the locking connector be sure to unlock first and then disconnect Check the connector terminals for bent pins excessive stretching missing terminals or other abnormalities before connecting the connector To connect insert the connector completely into the receptacle If the connector is a locking type be sure that it is locked securely Check the connector cover for cracks or other damage and make sure the connector female terminal fits snugly into the connector Then connect the connector securely Check the connector terminal for rust Remove any rust using an emery paper or equivalent material before connecting the connector Secure the
27. ks Disconnect the battery Remove the front and rear end panels and left side panel Remove the inverter Remove the air filter cartridge and filter Remove air filter cover screws Remove flange nuts retainer plate and air box Remove the carburetor and choke as an assembly being careful not to pull on the step motor wires 29 05 le D I Backpressure Automatic Choke Check Valve Assembly HE Fr 2 i 1 e d iu di N N M LE 00 2 eS Carburetor 40 PH3100Ri SM Revision 11 09 2010 6 2 Disassembly Installation of Step motor e Disassembly and installation of step motor 1 Unplug the step motor plug from the inverter 2 Remove the step motor mounting bracket being careful not to loosen the fork spring 3 Remove the throttle fork from the step motor shaft and remove the step motor screws Step Motor 6 3 Step motor inspection 1 Measure the resistance of the outlet terminals of the step motor Pin 1 blue Pin 2 white 50 550 Resistance value Pin 3 red Pin 4 black 50 550 2 Replace the step motor if the resistance exceeds the standard value 41 PH3100Ri SM Revision 11 09 2010 6 4 Fuel shutoff solenoid Measure the resistance of fuel shutoff valve between the two leads 7 90 Replace the electromagnetic valve if the resistance exceeds the standard value Measure resistance between the
28. l level be sure to put the engine on a flat surface when checking 1 Loosen the screw on the engine oil access cover and remove the cover 2 Remove the oil filler cap and check for the oil level 3 Ifthe oil level is low add oil until it reaches the edge of the oil filler port Upper Upper level Lower Limit Lower level 31 PH3100Ri SM Revision 11 09 2010 4 3 Changing oil Drain the oil while the engine is still warm to assure rapid and complete draining A CAUTION sure to turn the engine switch and fuel lever OFF before draining Loosen the screw on the engine oil access cover and remove the cover Remove the oil filler cap Install the oil drain pipe Drain dirty oil into a container Allow enough time for the oil to drain completely Refill with the recommended oil and check the oil level gt e cow Reinstall the access cover and tighten the screw securely Engine oil capacity 35 oz 1 0L Upper Limit Upper level Lower Limit a Lower level Please dispose of used motor oil in a manner that is compatible with the environment and local disposal regulations Do not throw it in the trash or pour it on the ground 32 PH3100Ri SM Revision 11 09 2010 4 4 Checking the low oil sensor 1 Remove the maintenance cover and locate the oil sensor lead which is between the battery and the side panel Disconnect the low oil sensor while the engine is running Grou
29. m What to check for 1 Check engine oil level and fill to the proper level as required 2 If the low oil light comes on and the oil level is correct refer to low oil sensor trouble shooting section Remove the front control panel and unplug the remote receiver If the unit will now start and continue to run replace the receiver and transmitters Note with the receiver unplugged the generator will not shut off using the ignition switch To shut down the unit reconnect the receiver or turn off the fuel lever 4 Remote Receiver is T 7 P Air Filter Cover 29 PH3100Ri SM Revision 11 09 2010 4 Maintenance 4 1 Maintenance schedule Regular Service period 1 Perform at every indicated month or operating hour interval whichever occurs first Maintenance Every 6 Procedure Months Or Every Year Or Clean adjust Spark Plug Clean Spark Arrester Fuel Filter m Check adjust Valve clearance Every 2 years Replace as necessary Notes 1 For commercial use operation hours are determined by proper maintenance 2 Service more frequently when operating in dusty areas every 10 hrs or every day 3 Service should be performed by a POWERHOUSE authorized agency unless correct tools and a professional specialist are available Service should always be performed according to the service manual 30 PH3100Ri SM Revision 11 09 2010 4 2 Checking the oil level Stop the engine and check the oi
30. nd panel 47 PH3100Ri SM Revision 11 09 2010 9 1 Inlet Fan Cover Drain all gasoline from the fuel tank before disassembly Keep the unit away from all heat flame and sparks Disconnect and remove the battery Remove the front and rear end panels and the left and right side panels Remove the upper frame and the gas tank as an assembly Remove the inverter Disconnect all wires from the stator assembly Disconnect the starter motor wire and all ground wires Remove 4 nuts from the engine mounting bolts 2 on each side and lift the engine assembly off of the base pan Upper Frame and Gas Tank 48 PH3100Ri SM Revision 11 09 2010 8 Remove the carburetor assembly and the inlet cover Starter Motor Ignition Coil Rotor and Stator 9 2 Starter motor 1 Follow steps 1 through 8 as outlined in section 8 1 2 Remove 2 M8 flange bolts 49 PH3100Ri SM Revision 11 09 2010 9 3 Start relay 1 Using volt ohm meter check the resistances of the electromagnetic coil of the starter relay by connecting the red positive lead to the 74 spade and the black negative lead to the metal body of the relay 2 Check the function of the start relay by connecting 12 volts to the 74 spade terminal and 12 volts negative to the metal base or body There should be a clicking sound as the relay is activated While the relay remains activated use the volt ohm meter check co
31. nd the white lead from the indicator module to the engine block to verify that the engine will stop when the low oil alarm lamp is lit 4 After confirming that the engine oil is at the proper level test for continuity between the terminal of the black oil sensor lead and the case of the engine No continuity indicates a normal condition 5 Continuity between the black oil sensor lead and engine when the oil is drained from the engine indicates a normal condition A WARNING No continuity after the oil has been drained would indicate a faulty oil sensor or a damaged wire that must be repaired or replaced Failure to do so can lead to permanent damage if the engine runs low on oil White Lead to the Indicator Module Black Lead to the Low Oil Sensor Check Continuity between the Black Oil sensor Lead and Ground 33 PH3100Ri SM Revision 11 09 2010 4 5 Air Cleaner Inspection Cleaning Loosen the panel screws and remove the side maintenance cover Remove the four cartridge retaining screws Remove the filter cartridge and the fine and coarse filter elements Wash the elements in a non flammable or high flash point solvent and dry them thoroughly Soak the fine element in clean engine oil and squeeze out the excess oil Reinstall the coarse and fine air cleaner elements and the air filter cartridge Tighten the four cartridge screws securely 7 Reinstall the maintenance cover and
32. ntinuity between the two lugs f there is no continuity the relay is defective 3 Note there must only be continuity between the battery and starter terminals when the relay is activated Checking Resistance Checking Continuity Connect 12volts Connect 12volt Negative 50 PH3100Ri SM Revision 11 09 2010 9 4 Ignition Inspection 1 Remove the control panel and locate the 2 primary coil plug with a Blue and Black wire unplug it from the control panel 2 Attach the two leads of the tester to the Blue and Black wires and measure the primary resistance of the ignition coil 3 Ifthere is no resistance check for continuity between the Blue wire and chassis ground If there is no resistance repair or correct as necessary 4 Replace the coil if there is no resistance or the value is outside of the values shown 1 42 00 The blue wire should be connected to the chassis ground 1 Check continuity between the blue and black wires if installed 2 Pin Coil Connector 2 If not installed check continuity between the black wire and coil bracket Check the secondary resistance between the black wire and spark plug cap 5 To check the secondary resistance attach one lead of the tester to the black wire of the primary plug of the ignition coil and the other lead to the spark plug cap 6 Ifthere is no resistance remove the spark plug cap and check the lead itself 7 Replac
33. o blue wires between the stator and voltage regulator With the engine running the voltage from the stator must be 12 20VAC If no voltage is present the stator is defective If voltage is present replace the voltage regulator 5 If voltage is present at the control panel make sure that the remote switch on the control panel is in the off position 6 Check the 6 pin connection between the remote receiver and control panel looking for any loose or broken wires If no problems are found replace the remote receiver Voltage Regulator Battery charge Wire to Starter Solenoid Harness Plug to Circuit Breaker ES and DC To Ignition Switch Chassis f Ground Starter Solenoid Terminal Spade Terminal Harness Plug to DC Stator Charge Windings 26 PH3100Ri SM Revision 11 09 2010 3 16 Engine will not start or stop with remote Does the red indicator light on the No remote come on when either the start Replace the transmitter battery or stop buttons are pushed Yes Is there continuity at the remote rocker No switch when it is in the on position Replace rocker switch Yes Check ground wire between the voltage regulator engine and chassis Check voltage between With the engine running disconnect the red wire from the battery and measure No the voltage between the red wire and ground wire from voltage regulator chassis ground There should be 12 15 and red bat
34. or 69262 12 Main bearing 13 8 35 hex bolt 14 Cylinder head bolt 15 Valve cover bolt 16 69263 17 18 Cylinder bottom cover plate 19 Exhaust gasket 69472 20 Carburetor mounting block 69546 21 Mounting block stud 22 Cylinder head 69264 23 Valve cover 69265 24 Breather hose 26 27 intakemountingstuds 30521007000 2 T 29 Intake valve 30103 08 000 69268 30 30201 08 000 69269 31 177010010600 69558 32 30303Q01F930 69560 33 30101Q01F000 69561 34 30301Q01F000 69562 35 30313Q01F000 36 30106001 000 37 30214Q01F000 38 30203Q01F000 39 30105001 000 30302001 930 30400Q01F000 15230001 000 15116001 000 177010400200 m 2 5 mJ 2 8 elg L 5 S ctc UO oio lr s 13 m zi 5 5 3 13 2 m 5 D rt Exhaust valve Guide plate Valve adjustment screw Valve spring Rocker arm Rocker arm shaft Exhaust valve retainer 69563 Exhaust valve cap 1 69564 69568 69569 Intake valve spring cup Exhaust valve sping cup 2 Valve clearance adjusting nut 41 Camshaft assembly 42 Flywheel Nut 43 44 45 69571 D lt Crankshaft assembly I 45 15207 08 000 15237 08 000 L o 2 oa D Du PH3100Ri SM Revision 11 09 2010 O 177 Engine Parts List Description ERP NO Stk No 47 48
35. ork can be done The engine serial number can be found stamped on the engine block above the oil dipstick It is visible when the engine oil access cover 15 removed Serial N umber 2 5 Engine maintenance standards Pat Wem Standard Maximum speed without load 36008 00pm Cvlinder 77 000 77 020 105mm Sleeve 1 0 3 0315 3 0323 3 0356 6 960 6 980mm 76 85 un 3 0299 3 0307 3 0256 Pin bore D 18 002 18 008mm 18 05mm 0 7087 0 07090 0 7106 Pisino 17 994 17 000 17 95 0 70847 0 7087 0 7067 1 97 1 99mm 1 8 mm eignen 0 0776 0 0783 0 0736 Ring side clearance A Piston rin 1st rin E 80 i Ring end clearance a EID 9 0 006 0 010 0 04 3 40 3 60mm 3 20mm an 0 134 0 142 0 126 12 PH3100Ri SM Revision 11 09 2010 2 5 Engine maintenance standards continued Pat Standard Heiaht h 1 97 1 99mm 1 8 mm 9 0 0776 0 0783 0 0736 Ring side clearance ____ zu 0 001 0 002 0 006 REN 0 15 0 25mm 1 0mm Ring end clearance PER a 0 006 0 010 0 04 3 40 3 60mm 3 20mm Width Piston ring 0 1347 0 142 0 126 continued 3 40 3 60mm 3 20mm eg 0 134 0 142 0 126 Ring side clearance M emm ul Oil ring 0 0017 0 007 0 009 Ring clearance nm EL 0 008 0 020 0 04 2 3 2 mm 2 2mm Width t 0 09 0 11 0 087
36. otating direction Clockwise Viewed from the generator Frequency regulation AC DC AC conversion Inverter type 6 PH3100Ri SM Revision 11 09 2010 1 2 CHARACTERISTICS Voltage variation rate Momentary 10 max Average 1 5 Average time 3 sec max Voltage stability Frequency variation rate Momentary 1 1 max Average time 1 sec max Frequency stability Insulation resistance 10MOmin AC circuit protector 20A and 30A 120V DC circuit protector Fuel tank capacity 4 4 gal 16 6L Continuous running time 7 6 hours 17 8 hours at rated load at 1 4 load Noise level Zero load to full load 56 65 dB 23 7m 7 PH3100Ri SM Revision 11 09 2010 1 3 Wiring Diagram w o electric solenoid PH3100RI WIRING DIAGRAM CONTROL PANEL INVERTER ASSEMBLY ee E 2 2 za GRAY Weare ARE WHITE 20 tr b Ned li Bes i a aag K 12 __BLACKI4 H G YELLOWIGREEN sr a ESCENA 1 Ns GREEN BLACK 1 n rg YELLOW GREEN 144 D BLACK ECONOMY XM SCAM ED mace wp Rl SWITCH P o0 09 BER zo 6 204 ato WHITE 11 diar it BLACK 208 STOP STOP BUTTON RED ome 2 elle pe BREN RED RED RED SLACK 208 SOLENOO YELLOW GREEN 16 FROM CONTROL PANE TO GROUND GREEN BLACK it
37. pin hole Manufacturers Label gt 1st ring 2nd ring Oil ring Piston E Piston pin Connection rod Installation The larger side of the connection rod must be aligned with the A label the piston Make sure the rings are installed with the manufacturer s label up Make sure the 1st ring and 2nd ring are not interchanged Make sure the piston rings are free to move after installation Stagger each piston ring gap 120 from each of the other rings 15 ring 278 ring Oil ring 64 PH3100Ri SM Revision 11 09 2010 Cylinder inner diameter Standard Service limit 77 000 77 020mm 3 0315 3 0323 77 105mm 3 0356 Piston skirt outer diameter Standard 76 960 76 980mm 3 0299 3 0307 6 85mm 3 0256 Side clearance of piston ring Standard 0 02 0 06mm 0 001 0 002 0 15mm 0 006 65 PH3100Ri SM Revision 11 09 2010 Piston ring end clearance Locate the piston ring into cylinder with piston top and measure the piston end clearance Standard Service limit 0 15 0 25mm 0 006 0 010 1 0mm 0 040 Piston ring height Standard The 1 1 97 1 99mm 0 0776 0 0783 1 8 mm 0 0736 The 2 ring 1 97 1 99mm 0 0776 0 0783 1 8 mm 0 0736
38. rance or replace the spark Normal Check the carburetor and nozzle for Blocked blockage Disassemble and clear No blockage Abnormal Check the carburetor gasket for leakage Tighten carburetor bolts Gei replace gasket as required Normal 1 Check the valve clearance Abnormal es Measure the cylinder compression 2 Check the carbon deposit in the combustion chamber 3 Check the piston piston ring Normal and cylinder for damage Perform the throttle control system test 3 8 Engine speed too high or too low Abnormal Perform the generator trouble shooting following the instruction of or low AC output Norma Abnormal Check the throttle control motor Replace the throttle control motor Norma Abnormal Check the Economy switch Replace the Economy switch Normal Check Economy switch connection wire Repair or replace the wire harness Normal Replace the inverter unit 20 PH3100Ri SM Revision 11 09 2010 3 9 Engine speed doesn t increase with economy system and a load connected Abnormal Perform the generator Check the AC output troubleshooting following the instruction of No or low output Normal Abnormal Check the step motor Replace the step motor Norma Abnormal Check the economy switch Replace the economy switch Normal Abnormal Check economy switch connection wire Repair or replace the wire harness Normal
39. se Leads 6 5 Backfire controller BFP Green Black Connects to the Fuel Shutoff Solenoid Red Black Connects to the DC Power Supply from Voltage Regulator Connects to Connects to the Ignition the Ignition Switch Coil 42 PH3100Ri SM Revision 11 09 2010 6 6 Automatic choke assembly 1 automatic choke consists of the backpressure check valve and the vacuum pot 2 Items to check if the automatic choke fails to operate a Check all vacuum hoses for cracks or damage replace as necessary b Check the backpressure check valve for leaks or a defective diaphragm c Check all choke linkage to insure that it operates smoothly and that the choke closes and opens fully d Check the vacuum pot for leaks With the lever depressed pinch off or block the end of the hose The plunger should stay in the retracted position as long as the hose is pinched or closed off EN Hose to Vacuum Pot Hose to Intake Manifold Backpressure Check Valve Choke Return Spring Choke Lever Vacuum Pot t 710 iBackpressure Valve 43 PH3100Ri SM Revision 11 09 2010 6 7 High Altitude jet installation Remove the carburetor Remove the fuel cut off solenoid Remove the fuel bowl retainer bowl and gasket Remove the main jet and emulsifier tube Carefully inspect all rubber seals and O rings Replace the main jet with a high altitude jet and reassemble carburetor Reinstall and check for fuel leaks 28 2 2
40. tery cable VDC coming from the regulator No voltage Replace Voltage regulator Abnormal Yes Check 6 pin connection at the remote Repair or replace faulty connections receiver OK Replace the remote transmitters and receiver 2 PH3100Ri SM Revision 11 09 2010 3 17 Engine will struggle when shut off with key or remote but keeps running rough For safety we recommend turning off the fuel valve instead of pulling off the spark plug wire What to check for 1 XM Remove the end panel and locate the Back Fire Controller Check all connections and repair or correct as needed Disconnect the green black wire from the fuel shut off solenoid Turn on the fuel valve and restart the engine Using a volt ohm meter connect the positive lead to the green black connector from the Back Fire Controller controller and the ground lead to the engine or chassis When the ignition switch is turned off there off there must be 12 VDC at the green black wire for several seconds If there is no 12 VDC replace the BFP If there is 12 VDC replace the BFP controller Green Black Connects to Fuel Shutoff Solenoid Red Black Connects to DC Power Supply from Voltage Regulator Connects to Connects to the Ignition the Ignition Switch Coil 28 PH3100Ri SM Revision 11 09 2010 3 18 Engine will start and then shut down This condition can affect the ignition switch remote and manual start syste
41. vision 11 09 2010 4 7 Valve clearance Valve clearance inspection and adjustment must be performed with the engine cold Inspection Adjustment 1 Remove spark plug valve cover bolt valve cover and valve cover gasket Spark Plug Valve Cover Gasket SI S m gt Valve Cover Valve Cover Bolt Vent Hose from Air Fuel Tank Vent Hose from Tank Air Cleaner 380cc Carbon Canister 36 PH3100Ri SM Revision 11 09 2010 Rotate the engine clockwise direction until the piston is attop dead center and the intake and exhaust valves are closed 2 Insert a feeler gauge between the rocker arm and the valve and measure the valve clearance Valve clearance 0 10 0 02mm 0 004 0 001 0 15 0 02mm 0 006 0 001 3 If adjustment is necessary proceed as follows a Secure the rocker arm adjustment screw and loosen the locknut b Adjust the screw until the desired valve clearance is attained c Tighten the locknut and recheck the clearance 4 Clean the cylinder block and valve cover Replace the rubber valve cover seal 6 Install the removed parts in the reverse order of removal 37 PH3100Ri SM Revision 11 09 2010 5 Muffler system Muffler removal installation must be performed with the engine cold Drain all gasoline from the fuel tank before disassembly Keep the unit away from all heat flame and sparks 5 1 Spark
42. witch does not Throttle control motor step motor Inspect wiring inspect motor stabilize too faulty high or too low Inverter unit faulty Inspect replace Valve clearance misadjusted Readjust 14 PH3100Ri SM Revision 11 09 2010 3 2 Hard starting No fuel Check the fuel level Add fuel and restart the engine Sufficient fuel No fuel at o ded carburetor Check fuel filter and fuel valve check whether fuel reache the carburetor Good spark Check fuel lines and carburetor for 2 224 SE 20 blockage or a stuck float electrode Clean the electrode and restart taking care that the choke is not closed too much If flooding is severe check the carburetor float Install the spark plug and No spark or ground the electrode Check WEAK Perform the ignition system the spark troubleshooting Good spark Low cylinder Install a compression gauge compression the spark plug hole and check the cylinder compression by pulling the recoil starter rope several times 1 Check the valve clearance 2 Check for carbon deposits in the combustion chamber 3 Check the valve cone and seat 4 Check for worn piston piston ring or cylinder Normal compression Install the spark plug securely Restart the engine according to the starting procedure 15 PH3100Ri SM Revision 11 09 2010 3 3 Cylinder compression check 1 Remove the sp
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