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THE BASIC MECHANISM
1-1. An Introduction to the Mechanism
Power i s transmitted from the crankshaft
through the clutch and two transmission shafts
to a third shaft, called the middle driven gear.
A splined drive cam fits inside the middle
driven gear and transmits power t o the driven
cam, which is located
shaft. The drive and driven cams act as a
shock damper in the drive line. These cams
remain i n the same position relative to each
other; that is, they do not "ratchet" or slip
over when under heavy load. The middle gear
case contains two geared shafts; the drive
pinion (shaft and gear) and the driven pinion
A
(gear).
flange rides on the driven pinion
spline and is bolted t o the ball joint. The ball
joint acts like the universal joints i n an auto-
mobile drive shaft. The ball joint is permanent-
l y lubricated and rarely requires replacement.
The swing arm (rear arm) serves as both a
suspension component and a housing for the
drive shaft. Power is transmitted through the
ball joint t o the drive shaft, and t o the splined
gear coupling in the final gear case. In the
Final Gear Case, the power is transmitted t o
the Drive Pinion, through the Ring Gear, and
finally to the rear wheel.
NOTE:
The following illustrations represent only
selected components and not the actual
complete assembly.
the middle gear
on
Ball
j o i n t
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