Operator`s Manual for BT-34EIS - Best R/C (BestRC.com)
Contents
1. 42 43 44 45 46 47 48 CRANKCASE Description Stock SHIM lui s FJIG7350 Shim E FJIG7380 Flywheel Nut 12mm FJIG4740 Washer 7mm vi Go FJIG8720 Rotor Complete a L FJIG5690 Sensor Unitek eS aed i a FJIG1003 Hex Button Screw 5x12mm 2 FJIG8255 Hex Bolt 5x20MmM S sse tek FJIG8300 Crankcase Assembly BT 34EIS L FJIG3834 Oil Seal TB 12227 Puna daai ienaa FJIG6300 Crankcase Gasket AAA FJIG3930 Ball Bearing 6201 A2C3 32mm OD 2 FJIG3060 Ball Bearing 6001 DD 28mm OD such FJIG3070 Cord Clamp Complete AAA FJIG3780 Fuel Pipe 3x5x110mm cc cccsssscseesssccesensececseesessessteseeeseetesetoneees FJIG4810 CIH 52MM id ea ina Aes FJIG3660 11 Key 10 25 26 27 28 29 30 32 33 46 48 50 51 73 74 ENGINE MUFFLER 29 28 30 31 DL sl x Description Stock Funnel Complete AAA FJIG7640 Small Washer 5MM 1 FJIG8605 Hex Bolt 5x40mm 1 FJIG8325 Washer 5mm 2 sath Go FJIG8750 Muffler Set Be L FJIG6000 Mutter Body Bue all FJIG5850 Muffler PIPE cui a En FJIG6060 Muffler Joint Gasket rede FJIG5970 Muffler Body A Complete vo ech FJIG5820 Muffler Gasket ed aaeeea aenean nn castevececebed FJIG3280 Carburetor Set WT FJIG3290 Carburetor Gasket Ws Ce FJIG3120 Inlet Manifold Gasket u u FJIG5370 Carburetor Insulator Get FJIG3180 Hex Bolt 4x18mmWS 1 FJIG8220 Hex Bolt 5x45mm 2 Go Zo FJIG8325 le EE FJIG3660 12 C2. information on their web sites regarding spark plug performance and health For more information check htip www championsparkplugs com sparkplug411 asp PROPELLER Always use a well balanced high quality propeller The recommended propellers are 18 x 10 High Performance Wood Prop 18 x 10 or 18 x 12 Carbon Prop During ourtests our Fuji Imvac BT 34EIS turned a Bolly 18 x 12 carbon prop at7100 rpm which translates to roughly 30 Ib of static thrust The engine was new with 60 minutes of breaking in The test conditions were Temperature 59 F 15 C humidity 20 elevation at sea level Performance may vary depending on atmospheric conditions OIL Fuji Imvac Engines has developed a special oil to work with the Fuji Imvac engines This oil is of extremely high quality and it has exceptional lubricating properties This oil can be mixed with gasoline at much higher ratios than other engine oils which allows the engine to develop more horsepower and last longer It is recommended that you use Fuji Imvac Engines oil with all your Fuji Imvac engines Break in procedures are slightly different than those when using standard oils Please refer to the table below for oil contents Fuji Imvac Oil bottles of different sizes are available from your Fuji Imvac Engines distributor or Hobby Shop Break in Stage 1 1 gallon of gasoline with 50 1 2 oil content ratio e Break in Stage 2 1 gallon of gasoline with 100 1 1 oil co
3. ARBURETOR Description Stock G rburetor u 2 ir Ernie FJIG3290 Inlet Screen FJIG5460 Pump Body Complete FJIG6930 Set ScreW saaie FJIG7170 Pump Gasket FJIG7080 Pump Diaphragm FJIG7020 Idle Adjustment Spring FJIG5250 Idle Adjustment Screw FJIG5190 Needle Valve FJIG6240 Diaphragm Gasket FJIG4620 Metering Diaphragm Complete FJIG5760 Valve Spring FJIG8525 Hinge Pin Set Screw FJIG5130 Hinge Pin FJIG5100 Control Lever FJIG3750 Diaphragm Cover FJIG4530 Adjustment Spring 2 FJIG3000 Low Adjustment Screw FJIG5590 Set Screw OAI Se ots FJIG7200 High Adjustment Gecrew nennen nenn FJIG4950 13 MISCELLANEOUS 8 22 Description Stock Clutch Washer Bi nennen am ann FJIG6810 Hex Bolt 5x22MM WS sir e iada aaa aiian FJIG8310 Combination Box Wrench 10 X 1gmm FJIG3690 Propeller Fixing Bolt rea FJIG8110 Propeller Flange 42 5mm ne we FJIG6724 HEX Wrench Ammann aan FJIG4920 EIS G ntrol Univision aan FJIG1001 Small Grip Washer 20051 FJIG8530 14
4. FUNK WMVAC SPECIFICATIONS Displacement 34cc Horsepower 3 2HP 11 000 rpm Ignition Style EIS Automatic Ignition Timing RPM 1200 11 000 rpm Fuel 100 150 1 Mixed Gasoline Using BT series exclusive super lubricating 2 cycle oil Use normal regular or high octane gasoline no change is expected with rpm Weight About 1 5kg w Muffler EIS unit 120kg Manufactured by FUJI IMVAC INC YOKOHAMA 235 0005 JAPAN Worldwide Distributor except Japan Hobbico Inc Champaign IL 61826 USA www fuji imvac com Fuji Imvac is not related to the original Fuji Engines sold by Mecoa SAFETY TIPS AND WARNINGS Always use a balanced spinner and a balanced prop An unbalanced spinner and prop combination will cause high levels of vibration and may cause the propeller shaft to break Always use a lightweight spinner on your engine Lightweight spinners are considered to be those with a cone wall of 1mm or less Heavy spinners could cause the propeller shaft to break Securely tighten the spinner and prop on the engine to prevent it from being thrown off the engine while running Never use a prop that has hit the ground Even though it may look good from the outside it may be cracked on the inside which may cause it to disintegrate while in use Do not use a nicked cracked or split propeller Keep foreign objects away from the propeller Make sure that nothing can be sucked in by the propeller Never start the engine on loo
5. NTY FOR USA AND CANADA Fuji Imvac Engines warrants this product to be free from defects in materials and workmanship for a period of three 3 years from the date of purchase During that period Fuji Imvac Engines will at its option repair or replace without service charge any product deemed defective due to those causes You will be required to provide proof of purchase date receipt or invoice This warranty does not cover damage caused by crash abuse misuse alteration or accident Damage caused by customer disassembly tampering use of substandard fuel use of incorrect accessories spark plug prop etc or any use of the engine for which it is not specifically intended will automatically void the warranty of the engine If there is damage resulting from these causes within the stated warranty period Fuji lmvac Engines will at its option repair or replace it for a service charge not greater than 50 of the current retail list price Be sure to include your daytime telephone number and e mail address in case we need to contact you about your repair e Under no circumstances will the purchaser be entitled to consequential or incidental damages This warranty gives you specific legal rights and you may also have other rights which vary from state to state e If you attempt to disassemble or repair this unit yourself it may void the warranty For service on your Fuji Imvac Engines product either in or out of warranty send it post paid an
6. Wrench Propeller Washer Fuji Imvac EIS Engines Decal Propeller Bolt Muffler with Muffler Gasket AUTOMATIC IGNITION TIMING MODULE Automatic Ignition Timing The BT 34EIS features an electronic ignition system that advances the ignition timing as the engine rpm increases This ensures a delayed ignition timing at low rpm for easy starts and good low end engine performance and advanced timing at high rpm for good high end power The ignition module is waterproof The ignition module runs on any 4 8V battery The current consumption is approximately 188mAh An optional Digital Tachometer FJIG9920 is available to monitor rpm and ignition battery voltage SPARK PLUG The recommended spark plug is a Champion RCJ 6Y or 7Y To avoid improper operation or possible engine damage do not use any other type of spark plugs The plug gap should be 0 4mm to 0 6mm 0 016 to 0 024 If the plug gap is incorrect adjust it with a spark plug gapping tool wash it with gasoline and allow it to dry completely before you reinstall the plug in the engine Note If you want to check if the spark plug works remove the spark plug from the engine connect it to the coil and make sure the metallic threaded end of the spark plug touches the engine Spin the propeller rapidly through top dead center and check for a spark This procedure only works in a dark room as there is too much light outside to see the spark The various spark plug manufacturers have much
7. ad center compression and then counterclockwise back to bottom dead center repeatedly 6 5 Switch the ignition to ON 6 Flip the propeller clockwise several times briskly 7 After you hear some initial firing sounds move the choke lever to the OPEN position 8 Set the throttle to a high idle Set the prop so that the magnets are 20 clockwise from the magnet pick up when viewed from the front 9 Flip the prop through compression rapidly If this is done properly the engine will start between the first and the eighth flip of the prop During our testing starting took an average of 3 to 4 flips 10 After starting let the engine idle for two to three minutes Open and close the throttle slowly until the engine runs smoothly at idle and at full throttle Acceleration should also be smooth 11 If your engine does not start repeat the procedure B Electric Starter Starting 1 Make sure you use a good quality lightweight aluminum spinner 2 Have someone help you hold the airplane while you start it 3 Make sure the ignition is OFF close the choke plate on the carburetor and open the throttle slightly from the idle position 4 Use your electric starter to turn the engine over for several seconds 5 Switch the ignition to ON and open the choke 6 Set the throttle to high idle and use your electric starter to turn over the engine until it starts 7 After starting let the engine idle for two to three minutes Open and
8. close the throttle slowly until the engine runs smoothly at idle and at full throttle Acceleration should also be smooth 8 If your engine does not start repeat the procedure ENGINE ADJUSTMENTS Always make high and low speed needle adjustments with the engine shut off Also make sure the ignition is OFF e Adjust the needle marked H for high speed RPM Adjust the needle marked 1 for low speed RPM gt Low Speed Needle L Needle H Carburetor Arm E A Normal high and low speed needle settings It is not necessary to change the needle settings if the engine runs smoothly Normally only the H needle will need adjustment from time to time and only by a small amount H Open the needle 3 4 of a turn from the closed position 1 4 of a turn in winter L Open the needle 1 3 8 turns from the closed position 1 4 of a turn in winter Only adjust the high and low speed needle within the above range B Idle adjustment Note Do not confuse the idle screw with the low speed needle L The idle screw physically adjusts how much the carburetor valve can close The low speed needle L adjusts the gasoline to air mixture when the engine is running at low rpm If your engine appears to work correctly except that the low rpm are not as low as you want them to be then adjust the idle screw If your engine behaves erratically at low rpm then adjust the low speed needle L When adjust
9. d insured to Hobby Services 3002 N Apollo Dr Suite 1 Champaign IL 61822 USA 217 398 0007 www hobbyservices com Along with your engine and proof of purchase date please include a complete written explanation detailing the problem s State your name and address clearly For repairs not covered under warranty you must specify whether you wish the charges to be billed COD or if you wish to be notified of the charges so you can send a check Outside USA and Canada contact local importer for warranty information To order replacement parts for the Fuji Imvac BT 34EIS use the order numbers in the Replacement Parts Lists that follow Replacement parts are available only as listed Replacement parts are not available from Product Support but can be purchased from hobby shops or mail order Internet order firms If you need assistance locating a dealer to purchase parts visit www greatplanes com and REPLACEMENT PARTS click on Where to Buy CYLINDER PISTON CRANKSHAFT 18 Description Stock Spark PlU ACI sanieren FJIG7470 Cylinder Get FJIG4381 Hex Bolt 5x18mm S 4 FJIG8290 Cylinder Gasket A FJIG4290 Piston Ring 1 FJIG6600 Piston Set un FJIG6360 Piston Pin ios FJIG6420 Piston Pin Retainer 2 FJIG6510 Crankshaft Complete FJIG4022 Needle Bearing F 910 1 4x8 5mm Woodruff Key 3x13x4 5mm FJIG6150 EE FJIG7660 Key 19 19 21 23 24 25 33 41
10. e refer to the Oil section for fuel oil mixture ratios and break in times Do not adjust the high speed needle on the carburetor to break in the engine If you do so carbon will accumulate in the spark plug and that will make ignition difficult Do not run at full power for extended periods of time while breaking in your engine Make sure that the engine has adequate cooling While breaking in the engine may run at slightly higher temperatures If you wish to do so you can break in your Fuji Imvac BT 34EIS while flying your airplane Just make sure you observe all recommendations above STARTING PROCEDURES There are four recommended ways to start the Fuji Imvac BT 34EIS A Manual Starting Note Use a thick glove to protect your hand while hand starting the Fuji Imvac BT 34EIS 1 The propeller should be installed on the prop spacer so that it is comfortable for you to flip it through compression You also need to position it in a way that when you flip the propeller the magnets are 20 clockwise from the magnet pick up Have someone help you hold the airplane while you start the engine Make sure the ignition is OFF close the choke on the carburetor and open the throttle slightly from the idle position Rotate the propeller slowly about 10 to 20 times more in winter until fuel begins to be drawn into the carburetor Another way to prime the engine is to rotate the prop clockwise from bottom dead center to top de
11. ing turn the screw about 1 8 of a turn each time A dirty plug will make it difficult to adjust the idle RPM Follow the recommended procedures if any of the following happens Problem 1 The engine hesitates when accelerated rapidly 2 The RPM increases at idling 3 The engine stops when the throttle is moved from high to low Solution Your low speed needle L is too lean Open it up about 1 8 of a turn and try again 8 Problem The idle is not steady Solution Your low speed needle L valve is too rich Close it 1 8 of a turn and try again C High Speed Adjustment The high speed rpm and transition performance is adjusted with the high speed H needle valve When adjusting turn the screw about 1 8 of a turn each time The position of the H needle will vary according to air temperature and field elevation If your engine is running smoothly then do not adjust this needle valve Follow the recommended procedures if any of the following happens Problem 1 Engine stops at full throttle 2 Engine hesitates when accelerated rapidly 3 The engine will not come up to full RPM at full throttle Solution Your high speed needle valve H is too lean Open it up 1 8 of a turn and try again Problem 1 Your engine does not reach full rpm 2 Carbon build ups appear consistently on your spark plug Solution Your needle valve H is too rich Close it up 1 8 turn and try again 3 YEAR LIMITED WARRA
12. ntent ratio e Normal running In un cowled or well cooled installations 150 1 0 65 oil content ratio In cowled or not so good cooling installations 100 1 1 oil content ratio Do not try to use these engine oil ratios with any other brand of oil other than the Fuji Imvac Engines oil Do not use the Fuji Imvac Engines oil with any other brand of engines If you have been running the engine on other oil and wish to switch to Fuji Imvac oil follow the break in procedure for Fuji Imvac Engines oil If Fuji Imvac Engines oil is not available or if you prefer to use a different brand of oil use the standard fuel oil ratios as shown below Never experiment with cheap oil or with obscure brand names Be certain to select only high quality oil that is intended for use in gasoline R C model airplane engines e Break in 1 gallon of gasoline with 25 1 4 oil content ratio e Normal running 40 1 2 5 oil content ratio PREPARE THE ENGINE 1 Check to see that all screws and bolts are tight Check carefully for any cracks broken or missing parts Tighten or replace before proceeding Install the prop shaft on the flywheel using three 5mm x 22mm SHCS with lock washers and washers Use threadlocking compound on the screws Install the spark plug in the cylinder head and tighten 4 Test fit the muffler and muffler gasket Use two 5mm x 40mm hex bolts and washers to hold it in place 5 Secure the ignition c
13. ontrol module ground wire to the engine using one of the 5 x 12mm SHCS 6 Connect the ignition control module to the pick up sensor The connector is polarized and will only plug in one way 7 Connect a kill switch to the ignition control module It is recommended to install a manual switch and a servo operated switch This can be accomplished using two receiver On Off switches 8 Connect the ignition module battery Any 4 8V 500mAh and above battery will work well for this The approximate current consumption of the ignition switch module is 188mAh INSTALLING THE FUJI IMVAC BT 34EIS ON YOUR AIRPLANE Note The Fuji Imvac BT 34EIS must be installed on a 12mm 1 2 lite ply firewall or on a 9 5mm 3 8 birch ply firewall The firewall must be securely glued to the airplane Use triangle stock and pin the firewall with hardwood dowels to reinforce the firewall glue joints Never install the Fuji Imvac BT 34EIS onto a firewall thinner than specified because it may fail due to the power of the engine Note The length of the engine from the back on the engine mount to the propeller washer is 143mm 5 6 when using the stock 40mm 1 57 prop flange 1 Use the supplied template on the back cover of this manual to drill the engine mounting bolt holes and the necessary clearance hole on the firewall 2 Install the engine on the firewall using four 6 4 x 32mm or 1 4 x 1 1 4 socket head cap screws four 6mm 1 4 fla
14. se gravel or sand Keep onlookers away from the running engine especially small children Do not attempt to stop the engine by throwing anything into the path of the propeller Entire Contents Copyright 2009 FJIZ0035 for FUIGO134 V1 0 Make sure the fuel line is well secured to the engine and to the fuel tank so that it won t come off in flight Do not use silicone fuel line because it will be attacked by the fuel Use vinyl or neoprene rubber fuel line Always secure the fuel line away from the cylinder head The engine s heat can damage the fuel line Never touch the engine after a run The engine will be hot and it may burn you Before transporting your model remove all the fuel from the fuel tank and fuel lines Always use high quality oil intended for 2 stroke engines Use only low octane alcohol free gasoline The carburetor diaphragm will gradually deteriorate if you use gasoline with alcohol ethanol gasohol etc You will need to replace the diaphragm in about 80 hours of operation if you use gasoline with alcohol Muffler pressure to the fuel tank is not required Do not install your throttle servo or kill switch servo inside the engine compartment Doing so could cause radio interference Install all electronic radio devices at least 305mm 12 away from the engine The throttle pushrod should be non metallic In case the engine is not to be used for more than a month drain the fuel tank and remove any fuel from inside
15. t or lock washers and four 6mm 1 4 blind nuts Use some threadlocking compound such as Great Planes Pro Threadlocker GPMR6060 on the screws 3 o son Install the fuel tank in the airframe Use only gasoline safe fuel lines One line should go to the carburetor and the other is to be used as a vent You can fill the tank by using the carburetor line as fill line if you have access to it or install a third line to be used as fill line Install a manual kill switch and a radio operated kill switch Install the kill switch servo at least 305mm 12 away from the engine Install the throttle servo at least 305mm 12 away from the engine Make sure that you get the carburetor s full range of rotation with your servo travel Install the ignition module securely in the airplane forward area It is recommended that a thin piece of foam rubber is placed between the module and the mounting surface and that rubber bands are used to hold the module in place 4mm screws and washers can also be used to secure it in place but soft mounting the module is always the best choice Secure all connections with heat shrink tubing Cut all necessary clearance and cooling holes in the cowl Make sure the cowl is secured to the airplane and that the spinner to cowl clearance is at least 3 2mm 1 8 BREAK IN THE ENGINE The break in procedures for your engine will vary depending on the type of engine oil you will use Pleas
16. the carburetor Do this by running the engine at idle until it quits by running out of fuel Keeping gasoline inside the carburetor over an extended period of time will damage the diaphragm valve and clog passages inside the carburetor Because the carburetor is more complicated than those used in glow engines keep the fuel clean by using a fuel filter Use a filter intended to be used with gasoline engines Metal filters intended for glow engines are too coarse and will not screen out finer particles Always filter your fuel by using an appropriate filter before putting it into the airplane s fuel tank If you intend to run this engine on an engine stand or on any other rigid mount use rubber mounts The crankcase and other parts of the engine may crack if you do not provide some kind of vibration absorption mechanism A rubber mount is not necessary if the engine is mounted on a model airplane Do not operate the engine in a closed room or where ventilation is not adequate Gasoline is extremely flammable Keep it away from an open flame excessive heat or sources of sparks Do not smoke near the engine or the fuel tank This engine was designed for use in a model aircraft Do not attempt to use it for any other purpose Always install a kill switch that can be operated both manually and through the R C transmitter PARTS LIST BT 34 EIS Engine 280mm of Gas Tubing Ignition Module Spark Plug Wrench 42 5mm EIS Propeller Flange with 4mm Allen
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