ONAN SERIES CCKB ENGINE SPECIFICATIONS:

Engine Design					Opposed two cylinder 4 cycle air cooled
Cylinder Bore					3 1/4 inches (82.6mm)
Piston Stroke                      3 inches (76.2mm)
Displacement                       50 C.I.
Horsepower                         20 @ 3900 rpm
Oil Capacity w/filter change       4 qts. (3.8 litre)
Oil Capacity without filter        3.5 qts. (3.3 litre)
Fuel                               Gasoline
Battery                            12 volt

Cylinder head torque               29-31 ft. lb.
Spark Plug gap - Gasoline          0.025 inches
Breaker Point gap                  0.020 inches
Tappets (cold):
     Intake        0.006 to 0.008 inches
     Exhaust       0.015 to 0.017 inches

Ignition Timing:
	Standard Electric Start, stopped or running:  20 degrees BTC
	Manual Start with Spark Advance:     1 degree ATDC (Stopped)
                                         24 degrees BTC (Running)
Electric Start with Magneto
	and Spark Advance:                   5 degrees BTC (Stopped)
						           24 degrees BTC (Running)

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