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SPECIFICATIONS

Displacement: 5.2cu. in. (86cc)
Horsepower:

7.5HP  / 9000rpm

Ignition Style: CDI Automatic 

Ignition Timing

R.P.M.:

1100 – 9000rpm 

Fuel:

40:1 Mixed Gasoline

Weight:

5.8 lb. (2.6kg)
w/o Muffler

FEATURES

Manufactured by FUJI IMVAC INC.

YOKOHAMA, 235-0005 JAPAN

Worldwide Distributor 

(except Japan)

: Hobbico, INC.

Champaign, IL 61826 USA

www.fujiengines.com

Entire Contents © Copyright 2001

FJIZ8600  for  FJIG0086 V1.1

The BT-86 engine features an electron-
ic ignition system. This system gradu-
ally delays the ignition timing according
to the number of ignition pulses,
increasing with the engine speed. The
fuel mixture is ignited at almost top
dead center when idling  and the timing
is gradually increased as the revolu-
tions increase.

Decompression Valves
The valves are located in the center part
of each cylinder.

Pressing this valve

(one or both) before starting will
decrease compression at starting. The
valve on the firewall side may be operat-
ed by a servo for easier operation.
Always use the valves when using an
electric starter. The valves are closed
automatically as the engine fires. For
restarting, press the decompression
valves again to open them.

Operator's Manual for BT-86

Содержание BT-86

Страница 1: ...lays the ignition timing according to the number of ignition pulses increasing with the engine speed The fuel mixture is ignited at almost top dead center when idling and the timing is gradually incre...

Страница 2: ...o cool prior to refueling Break in Operation Operate engine for about one hour with a fuel mixture that contains a 25 1 fuel oil ratio Do not break in by opening the high speed nee dle on the carburet...

Страница 3: ...ly about 10 to 20 times more in Winter until fuel begins to move to the carburetor Swing the prop one half turn to move the piston from top dead center to bottom dead center and then back to top dead...

Страница 4: ...llowing method 1 Remove the spark plug If the plug is wet with gasoline the engine is flooded Let the engine rest a few minutes replace the spark plug and try starting again 2 If the spark plug is dry...

Страница 5: ...e mixture turn the needle clock wise To richen the mixture turn the needle counterclockwise Normal high and low speed settings It is rarely necessary to change the needle settings Normally only the H...

Страница 6: ...ble engine damage do not use other types of spark plugs The plug gap is 0 025 030 If the plug gap is incorrect adjust it with a spark plug gapping tool wash it with gasoline and allow it to dry well b...

Страница 7: ...rain fuel from A Always use oil intended for 2 cycle engines Use heat resistant rubber or silicon hose to extend the exhaust outlet from the muffler Metal tubing may cause the muffler retaining screws...

Страница 8: ...ines will at its option repair or replace without service charge any prod uct deemed defective due to those causes You will be required to provide proof of purchase date receipt or invoice This warran...

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