This is the Fuji Imvac 46.5cc (2.84 cid) 2-stroke
Gasoline Engine with Butterfly Carb.
FEATURES: Gasoline engine for large scale aircraft applications
Uses the same and magnets found on the BT-64A for
increased dependability and smooth operation.
CDI (Capacitive Discharge Ignition) One-piece, solid state Electronic
Ignition - no breaker points. This makes 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.
One-set so you can fly all day without having to change
the settings on the easy-to-understand Walbro .
Propeller is held securely by a knurled hub, and three other optional
lengths of hubs are available for different cowling sizes.
Head is painted Light Blue and crankcase is natural Silver
Cylinder utilizes chrome plated internal construction for long life
Included metal motor mounts
Tools and one extra of each mounting bolt included
3-YEAR Warranty
INCLUDES: One 46.5cc (2.84 cid) 2-stroke Gas Engine
One muffler with gasket & mounting screws
One motor mount
One instruction manual
One Champion RCJ6Y spark plug
One Spark plug wrench/#2 Phillips screwdriver combo
REQUIRES: Fuel: Unleaded gasoline mixed with a high quality two-cycle oil
Gas engine kill switch (GPMG2150)
Spring starting the engine or a 12V gear-reduction electric starter
Propeller: APC 20x10 (7,100 - 7,300 RPM)
Carbon props 20x10 (7,600 - 7,700 RPM)
(RPM varies relative to temperature, barometric pressure, humidity,
et cetera)
3mm and 4mm hex wrench for hub and muffler screws
SPECS: Displacement: 46.5cc "50cc" (2.84 cid)
Bore: 43mm
Stroke: 32mm
Horsepower: 5.2 HP / 9000 RPM
RPM: 1,200 to 9000 RPM
Ignition Style: CDI Automatic Ignition Timing
Weight: 4.82 lbs (2,188 g) with muffler
4.59 lbs (2,084 g) without muffler
Spark Plug: Champion RCJ6Y or RCJ7Y (gap of .6mm/.024")
Propeller Bolt: M8x1.25x40 (length)
Magneto Air Gap: .5mm (.020")
Engine mounting holes on rear of crankcase: 6.5mm diameter (4 places)
Engine Mounting Hole Distance: 2-13/16" Horizontal & 2¾" Vertical
Overall length: 216mm (8.5")
Overall width: 140mm (5.5")
Overall height: 191mm (7.5")
Length from back of mount to front of prop flange: 166mm (6.9")
Height from crank to top of engine: 123mm (4.8")
Width of Exhaust Port: 27.2mm (1.07")
Height of Exhaust Port: 14mm (.55")
Distance Between Exhaust Mounting Hole Centers: 41.4mm (1.62")
COMMENTS:
For Optional Spring Starter, use FJIG1050
Idle Adjustment:
High Speed Needle Adjustment: H needle - 1 turn from fully closed
Low Speed Needle Adjustment: L needle 1½ turns from fully closed
Muffler pressure is not required for the fuel tank.
Fuji has made a running change on the prop flange included which
changes the distance from the mount to the front of the prop flange.
Some engines may have the 62.5mm prop flange which makes the
aforementioned distance 175mm.
More current production runs include a 52.5mm prop flange, making
the distance 166mm.
Fuji Imvac is NOT related to the original Fuji engines sold by MECOA.
tjt 012503
ir/jxs
updt 2/18/03 jxs
Updt EEW 5/11/04
updt jxs 8/25/04
updt WM 12/14/04
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