X-TREME XG-499, Product Handbook, Page: 16 / 28

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ADJUSTING THE HEAD UNIT
The head unit should come adjusted from the factory. However, riding on
rough terrain and general use may cause the head unit to become loose over
time. It may be necessary to adjust the head unit from time to time.
ADJUSTING THE CHAIN
The chain will come adjusted from the factory. However, it may be necessary
to adjust the sprockets from time to time. The chain must be well aligned onto
the sprockets in order to avoid uneven wear. This will result in shortened
chain life.
How tight should the chain be?

If the chain is skipping or jumping on the sprockets, this is too
loose and may be harmful.

If the chain is making a humming sound when the wheel it
turning, this is too tight and may cause the chain to snap.

The correct tension is achieved by adjusting the chain from its
loose position to when it becomes lightly tense.
To adjust the head unit:
1. Rotate the handle bar as far right as it will
go to expose the HEAD UNIT (Fig.13).
2. Using a large adjustable wrench, gently
turn the BEARING LOCK clockwise to
tighten. *DO NOT OVER TIGHTEN OR
IT WILL DAMAGE THE BEARINGS.
To tighten the chains:
Slightly loosen the two axle bolts on both
sides of the rear wheel. (Fig.14). Then slowly
adjust the two adjusting screws on each side
of the rear tire (Fig.15) until belt reaches the
proper tension.