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English
DRIVE CHAIN
Drive chain inspection
It is imperative that the drive chain is checked according to the maintenance procedures shown herein before and after
riding. This method will extend the life of the chain of your mini motorcycle and avoid damage to the sprockets and to
other parts near the chain.
Measuring the drive chain free-play
1.
Place the mini motorcycle on its side or centre stand.
2.
Due to uneven tread wear the rear wheel must be turned so that the
chain pulls taut at the tightest part of the crank’s rotation. Then
measure the chain slack by pulling the chain up (half-way between
the front and rear sprockets).
3.
Slack is determined by the vertical movement on the bottom part of
the chain. Proper slack distance must be 3.8 cm (1.5 inches) with the
slack measured out of the bottom run of the chain to the top of the
swing arm with no tension on the wheel. Measure from the lower
chain guard (rearmost point on the rear sprocket).
Warning
.
Never repair the drive chain of your mini motorcycle while the engine is running as it may cause serious
injury or even death. Before checking the drive chain, make sure the engine is turned off.
3.8cm
or
1.5 in
