Yamaha LB50IIAC Service Manual page 9

4. Sub-transmission mechanism
In order to increase the engine torque
required for climbing a hill with ease,
this motorbike is equipped with a
subtransmission.
5. Operation of the lever
D-range:
Driving on level roads
N-range:
Neutral (Engine warming up)
L-range:
Climbing up a steep slope
N O T E : - - - - - - - - - - -
1. The shift lever must be operated at
idling.
2. In order to change to the "L" range,
first push down the stopper lever
and then set the shift lever to "L".
Kick starter mechanism
1. Both kick idle gear and kick pinion are
helically meshed. When kicked, thrust
is exerted on the pinion, thus causing it
to move off the drive axle.
2. When the kick crank returns to its home
position after the engine is started, the
kick pinion is forced back by the return
spring.
1 Dock
2 Main axle
3 Driven gear
4. Drive axle
1 One way clutch
2 Main axle
3 Drive axle
4 Ratchet wheel
5 Kick crank
-4-
5 Drive range
6 Low range
7 Sprocket
8. Shift rod
@ ®
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~I/
6 Kick gear
7 Kick idle gear
8 Dock
9 Driven gear