Specifications

Type	2 cycle twinboxer
Output	28 H.P.
Thrust	150 lbs.
Total Displacement	240 c.c.
Cooling system	air cool 25 m/sec.
Max rpm	7500
Min rpm	1500
Bore	58mm
Stroke	46mm
Bore/stroke ratio	851.03
Compression ratio	10.5 :1
Cylinders	Light alloy nikisil
Connecting rods	1144/needle bgs.
Crankshaft	1144 60 rc. D-lock
Bearing placement	1-rear 2-front
Fuel metering	Diaphram pumper
Ignition system	Electronic Adv.
Spark plugs	NGK BPMR7A
Exhaust system	Integral/Optional
TBO	800 Hrs.
Operating temperature	Fht.-70 Fht.+355
Altenator	28V 30A 840Watts

                 Operating Temperatures

Temperature @ cylinderhead	200-255 Deg. Fht.
Exhaust temperature @ headers	400-575- Deg Fht.

        

                         Operation

Rotation	Bi-directional
Fuel	87-92 Octane gas
Lucbrication premix/synthetic oil	Amsoil @ 100:1
Batter Voltage	4.8-6.3 Volts dc.
Weight with alternator	13.5 lbs./W alt.
Weight/power ratio	1.03
Consumption	2.1ozs./min@65%