Yamaha JT1 Series Service Manual page 19

ENGINE-Engine Removal
6 Remove the change pedal
(10 mm)
Fig 3-1-7
7 Remove the !efthand crankcase cover
($ screwdriver)
Fig 3-1-8
8 Disconnect the master link and remove the chain.
Fig 3-1-9
When reconnecting the chain be sure the master link is facing in the correct direction.
driving direction
After reconnecting the chain adjust the free play to 25 mm. ( 1 in.) up and down at the center of the lower
section
with
the rear wheel on the ground.
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