Honda CB160 Shop Manual page 46

-42
fig.
3. 113 Gears at neutral position
fig.
3. 11-4 Transmission of the first _speed (low)
fig. 3. 115 Transmission of the second speed
Fig. 3. 116 Transmission of the third speed
3. ENGINE
B. Transmission system
l .
For neutral
C
l
gear and C 3 gear on the countershaft and
M
2 gear and
M 4
gear on the transmission main shaft
are all free in the direction of rotation.
Rotation transmitted from the clutch center to the
transmission is transmitted by the main shaft and
M
3
gear to the C
l
gear and C 3 gear, free at the
counter shaft side. However, C 2 and C 4 gears
transmitting rotation of the countershaft side are not
coupled
by
dowels ; rotatior. is not transmitted to
them. Hence, the countershaft does not rotate and
power is not transmitted to the drive sprocket.
(Refer
to Fig. 3. 114)
2. For low (first speed)
By
shifting operation, the shift fork of the gear shift
drum couples the C 2 gear on the countershaft to the
C
l
gear by dowel. Power is transmitted to the Cl
gear from the transmission main shaft and
by
dowel
through the countershaft ; the drive sprocket is driven.
(Refer to Fig. 3. 114)
3. For second speed
M
3 gear on the main shaft is connected,
by
oper·
ation of the shift fork in shifting, to the free
M
2 gear
by dowel and drive is transmitted from the main shaft
through the M 3 gear,
M
2 gear, and the counter-
shaft to the drive sprocket. (Refer to Fig. 3. 115)
4. For third speed
The C 2 gear on the countershaft is dowel con·
nected to the free C 3 gear
by
operation of the
shift fork in shifting ; drive is transmitted from the
main shaft through the order:
M 3
gear, C
3
gear,
countershaft. (Refer to Fig. 3. 116)