Replacement Part List

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20
ADJUSTING THE DRIVE CHAIN
The drive chain needs to have a small amount of slack to operate properly. No
slack or excessive slack in a drive chain can cause damage to the bike. Normal use
of the mini bike will cause the chain to stretch over time, therefore it is necessary
to adjust the tension on the chain as part of routine maintenance. Follow the
following procedure to adjust the drive chain slack:
1. Park the mini bike on a rm, level surface and turn the engine stop switch to
the “o” position.
2. Reach over the top of the chain guard and pull upward on the drive chain
midway between the sprockets. The vertical movement of the drive chain
should measure approximately 1/2 of an inch.
3. Repeat the previous step along several points of the drive chain. The slack
should remain constant throughout. If it does not, follow the steps below to
make an adjustment.
4. Loosen both the axle nut and the chain tensioner adjustment nut.
5. Slide the axle nut either forwards (towards the front of the bike) to
tighten the drive chain or backwards (towards the back of the bike) to
loosen the drive chain. Repeat until there is approximately 1/2 of an inch
drive chain slack.
6. Tighten the axle nut and the chain tensioner adjustment nut.
7. If the chain tensioner is as tight as possible and slack still remains, the
chain is worn beyond its service limit. Contact Monster Moto customer
service for assistance or take your mini bike to an Authorized Monster
Moto Service Center.
DRIVE CHAIN
REAR
SPROCKET
FRONT
SPROCKET
CHAIN GUARD
DRIVE CHAIN
AXLE NUT
CHAIN
TENSIONER
CHAIN
TENSIONER
ADJUSTMENT
NUT
DRIVE CHAIN AND
SPROCKETS ARE COVERED
BY THE CHAIN GUARD