Gsniral

ENGINE SPIfil?]SAT!OMS VALVES (3B)

Spring (outer) 52-62 lbs. at 1-9/32 in. (valve closed) 155-165 lbs. at 15/16 in. (valve open) Spring (inner) 30-35 lbs. at 1-3/32 in. (valve closed) 75-85 lbs. at 3/4 in. (valve open) Spring free length 1-1/2 in. (outer)

ROCKER ARM (3B)

PISTON (3C)

Compression ring side clearance .0025 in. - .004 in.

Piston pin fit Light hand press fit at 70°F

CONNECTING ROD (3C)

Piston pin fit 0008 in. - .001 in. loose

OIL PUMP PRESSURE (3D)

TAPPETS (3D)

Tappet clearance . . . Just free (no lash) — Engine cold

GEARCASE (3D)

Intermediate gear shaft in bushing

Cam gear shaft in bushing Cam gear shaft in needle bearing

Cam gear end play

FLYWHEEL ASSEMBLY (3E)

Gear shaft nut torque 100 FT-LBS

Sprocket shaft nut torque 100 FT-LBS

Crank pin nuts torque 150 FT-LBS

Runout (flywheels) .002 in. maximum at rim

Runout (mainshafts) .001 in. maximum

SPROCKET SHAFT BEARING (3E)

PINION SHAFT BEARING (3E)

Shaft fit in roller bearing .0008 in. - .001 in. Shaft fit in cover bushing .0005 in. - .0012 in.

IGNITION TIMING (5F)

Breaker point gap setting (battery ignition . . .020 in. Dwell 90° @ 1000 R.P.M.)

Breaker point gap setting (magneto ignition) . .015 in. Spark plug gap setting (battery ignition) .025 in. - .030 in.

Spark plug gap setting (magneto ignition) . . .020 in. Ignition timing (Advanced) XLH-XLCH. 45°

(11/16 in. before piston top dead center) Ignition timing (Retarded) XLH . 15 "

(5/64 in. before piston top dead center)

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