Chain

Type (primary) 1/2 in. pitch, double

Looseness 5/8 to 7/8 in. slack (cold engine) 3/8 to 5/8 in. slack (hot engine)

MAINSHAFT MAIN DRIVE GEAR (4D)

RoUer bearing 0005 - .002 in. loose

Inner bearing 002 - .003 in.

MAINSHAFT (4D)

Low gear end bearing

In housing

On shaft

End play

COUNTERSHAFT (4D)

Drive gear end bearing 0005 - .002 in. loose

Low gear end bearing 0005 - .002 in. loose

Second gear

Bushing on shaft 000 - .0015 in. loose

Bushing in gear 0005 - .0025 in. loose

Low gear

Bushing on shaft 000 - .0015 in. loose

Bushing in gear 0005 - .0025 in. loose

Shifter clutch clearance

Low and second 075 in.

Third and high 100 in.

Sliding reverse gear approx. .055 in.

Gear backlash 003 - .006 in.

SHIFTER CAM (4D)

function of transmission

The transmission is comprised of four major assemblies, the clutch, gear box, gear shifter and starter. Each is a part of power transmission from engine to rear wheel or a means of power control.

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