Fuji Imvac BT-86EI Operator'S Manual Download Page 1

Operator’s Manual for BT-86EI

SPECIFICATIONS

Displacement

5.25 cu in [86.0cc]

Output

7.5hp @ 8,500 rpm

Ignition Style

Electronic Ignition System

RPM

1,100 – 8,500

Fuel

Gas/2-cycle engine oil

Weight w/Mufflers

7.5 lb [3.3kg

]

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 loose 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.

·

  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.

Summary of Contents for BT-86EI

Page 1: ...ghtweight 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...

Page 2: ...log 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...

Page 3: ...nd 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 t...

Page 4: ...ratios with any other brand of oil other than the Fuji Imvac oil Do not use the Fuji Imvac oil with any other brand of engines If you have been running the engine on other oil and wish to switch to Fu...

Page 5: ...t the ignition module battery to the kill switch Any 4 8V battery of 600mAh or more capacity will work well for this The approximate current consumption of the ignition switch module is 320mAh INSTALL...

Page 6: ...shrink tubing 8 Cut all necessary clearance and cooling holes in the cowl 9 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 ENGI...

Page 7: ...e 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 c...

Page 8: ...tment 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 mixtur...

Page 9: ...s 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 pro...

Page 10: ...LIST 10 Key Part No Description 1 FJIG7500 Spark Plug Cap Assembly 2 FJIG7470 Spark Plug RCJ 6Y 3 FJIG4500 Decompression Valve Gasket 4 FJIG0112 Decompression Grommet 6 FJIG4440 Cylinder Set 7 FJIG82...

Page 11: ...her 15 2x22 36 FJIG1003 Sensor Unit 41 FJIG3910 Crankcase Assembly 42 FJIG6300 Oil Seal 43 FJIG3990 Crankcase Gasket 44 FJIG3060 Ball Bearing 6201 A2C3 48 FJIG8300 Hex Bolt 5x20 S 49 FJIG8255 Hex Butt...

Page 12: ...FJIG5280 Idle Adjust Spring G FJIG5220 Idle Adjust Screw H FJIG6240 Needle Valve J FJIG4650 Diaphragm Gasket K FJIG5790 Metering Diaphragm Comp L FJIG7630 Valve Spring M FJIG5130 Hinge Pin Set Screw N...

Page 13: ...688 Optional Prop Flange 60mm 2 3 8 FJIG7689 Optional Prop Flange 70mm 2 3 4 13 Key Part No Description 77 FJIG6090 Muffler Set 78 FJIG5940 Muffler Gasket 79 FJIG8280 Hex Bolt 5x16S 80 FJIG8605 Split...

Page 14: ...ENGINE MEASUREMENTS 171mm 50mm 14mm 129mm 74mm 123mm 126mm 108mm 103mm 39mm 71mm 87mm 67mm 14...

Page 15: ...Entire Contents Copyright 2009 FJIZ1189 for FJIG0089 V2...

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