FJIG0086   Fuji   BT-86 86cc Twin Cylinder 

TECH NOTES
   This is 86cc size Twin Cylinder 2-stroke Gas Engine from Fuji Imvac Inc.

FEATURES: Gasoline engine for large scale aircraft applications.
          CDI (Capacitive Discharge Ignition) One-piece, solid state electronic
            ignition with no breaker points, making it very dependable and
            virtually maintenance-free.
          Machined using highly-specialized state-of-the-art CNC equipment,
            which makes for better overall quality and a tighter parts fit.
          Two decompression valves allow the engine to be rotated easily during
            starting. Either valve can be pushed in, and once the engine fires,
            the valve automatically recloses for running compression.
            Valves are located in the center part of each cylinder. The front
            valve is easily accessible by hand in airplanes with open cowlings.
            The rear valve can be operated by a firewall mounted servo in
            airplanes with closed cowlings. (For firewall mounted servo, the
            modeler must decide where and how to install it, and may need an
            extra channel on the radio for operation.)
          One-set needle valve so you can fly all day without having to change
            valve settings on the easy-to-understand Walbro carburetor.
          Propeller is held securely by a knurled hub, and two other optional
            lengths of hubs are available for different cowling sizes.
          Muffler is designed specifically for use in R/C airplanes having
            three exhaust ports instead of one. The mufflers mount to the
            engines' cylinder heads on both sides.
          Heads are painted light blue and crankcase is natural silver.
          Cylinders utilize chrome plated internal construction for long life
          Included metal motor mounts.
          Tools and one extra of each mounting bolt included.
          Optional electric starter with mounting hardware is available.
          Optional spring starter with mounting hardware is available.
          3 Year Warranty

INCLUDES: One 86cc Twin Cylinder 2-stroke Gas Engine
          One motor mount set with hardware
          One instruction manual
          One Spark plug wrench/#2 Phillips screw driver combo.
REQUIRES: Fuel: Regular gasoline mixed with a high quality two-cycle oil
            Gas/Oil Mix is 40:1 (3.25 ozs. per gallon of unleaded gasoline)
          Gas engine kill switch (GPMG2150)
     Spring starting the engine or a 12 volt electric starter gear reduced.
          Propeller: Carbon Propeller 24 x 12 (6,800 rpm)
                     Carbon propeller 24 x 10 (7,500 rpm) (Exhaust sounds get
                       louder using this propeller.)
            (RPM varies according to temperature, atmospheric pressure,
             humidity, and so on.)
          3.0mm hex wrench for hub and muffler screws


SPECS:    Displacement:   86cc
          Bore:           30mm
          Stroke:         42.7mm
          Horse Power:    7.5 HP / 9,000 rpm
          RPM:         1,100 to 9,000 rpm
          Ignition Style: CDI Automatic Ignition Timing
          Weight:         2.9 kg with muffler
          Spark Plug:     Champion RCJ-6Y or 7Y, gap of 0.6mm (.025")
          Propeller Bolt: M10x1.75
          Magneto Gap: .5mm (.020")
          Engine mounting holes on rear of crankcase: 6mm (.24")
          Overall Length, from back of prop to start shaft end: 197mm (7.75")
          Width: 218mm (8.6")  Width with plugs. 260mm (10.25in)
          Overall height: 203mm (8")
          Length from back of mount to prop nut: 160mm (6.3")
          Height from crank to top of engine: 75mm (3")
          Break-In Fuel: 25:1 mixed gasoline (run for one hour with this mix)
Running Fuel: 40:1 mixed gasoline (3.25 ozs. of 2-cycle oil per gallon of gas)

COMMENTS: For Spinner Adapter, use FJIG8082
          For Optional Spring Starter, use FJIG1086
          For Optional On-Board Electronic Starter, use FJIG1000.
          Idle Adjustment:
          High Speed Needle Adjustment: H needle 1 turn from fully closed.
          Low Speed Needle Adjustment: L needle 1-1/2 turns from fully closed.
          Muffler pressure is not required for the fuel tank.

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