Clutch - Honda CB160 Shop Manual

3. 5 CLUTCH
A. Description and operation of clutch
As shown in the previous figure, the clutch is a
wet multi-plate type and consists of the outer clutch,
pressure plate, friction disc, clutch plate, and clutch
center etc.
For transmitting rotation from the crankshaft to the
transmission, the clutch has the role to engage or
disengage power. It also provides for starts and
stops which do not unreasonably load the engine.
(Refer to Fig. 3. 57)
When the right crankcase cover is removed, the
outer clutch complete, is exposed. To the outer clutch
complete, the clutch spring driving the clutch pressure
plate is installed. The clutch plate is installed with
the clutch friction disc between the clutch center with
four 6 X 18 hex bolts.
The clutch plate has teeth cut on the inside. These
teeth are engaged with teeth cut on the outside. of
the clutch ·center. The clutch center is coupled) to
the transmission main shaft by spline. Hence, .it and
the transmission main shaft are essentially a single
unit. The clutch plate, clutch center, and clutch
pressure plate rotate.
On the other hand, to the groove cut on the ex•
terior circumference of the outer clutch. the clutch
friction disc is coupled by the collar entering the
groove ; freewheeling rotation with the transmission
main shaft is obtained. Hence, while the clutch is
connected, the outer clutch center, five clutch plates,
five clutch friction discs, and clutch pressure plate are
essentially a single unit through friction exerted by
the clutch spring ; rotation of the crankshaft is trans-
mitted to transmission system.
Inside the ·outer clutch, the primary driven gear.
(Refer to Fig.
3. 58)
When the clutch lever is gripped, the clutch ad
juster rotates clockwise, the adjustment thread is pushed
out by the square-headed thread in the clutch adjuster
fitted to the left crankcase cover ; this is pushed out
by the clutch joint through the clutch rod. The clutch
spring is compressed and the five clutch friction discs
and five clutch plates become disengaged. Hence,
the rotary motion of five outer clutches and five clutch
discs is not transmitted to the clutch center.
(Refer
to Fig.
3. 58 and 59)
Fig. 3. 57 Clutch installed {camplete vehicle)
CLUTCH OUTER
Fig, 3. 58 Sectional view of clutch
CLUTCH ADJUSTER
Fig. 3, 59 Sectional view of clutch adjustment thread
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