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Xmotos XB21A 2018 Operating Instructions Manual page 41

Dirt bike, pitbike

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New tires need proper break-in to assure maximum performance, just as the engine does. Wear-in the
tread surface by gradually increasing your cornering lean angles over the first 160km (100 miles) before
attempting maximum performance. Avoid hard acceleration, hard cornering, and hard braking for the first
160 km (100 miles).
FAILURE TO PERFORM BREAK-IN OF NEW TIRES COULD CAUSE TIRE SLIP AND LOSS OF CONTROL. USE EXTRA CARE WHEN
RIDING ON NEW TIRES. PERFORM PROPER BREAK-IN OF THE TIRES AS DESCRIBED ABOVE.
The service life of your drive chain will depend on several factors including proper lubrication, adjustment,
and riding style. If you are an experienced rider and tend to ride in a more intense manner, or you ride in
muddy/dusty areas, you will need to check the drive chain more frequently. Poor maintenance will cause
pre-mature wear and/or damage to the drive chain and sprockets.
Before you service your drive chain, be sure you are parked on a level surface and you turn the engine OFF.
Be sure the transmission is in neutral. It is not necessary to remove or replace the chain to perform
recommended maintenance service.
3. Inspect the drive chain for the following: damaged rollers, loose pins, dry or rusted links, kinked or
binding links and excessive wear. Replace the chain, loose pins, or kinks that cannot be freed. Lubricate
the drive chain if it appears dry or shows signs of rust. Lubricate any kinked or binding links and work
them free.
4. You should replace the drive chain once the rear axle is moved as far back as possible and slack still
remains. This indicates that the chain is worn beyond its service limit.
5. Inspect the front and rear sprockets for excessive wear or damage. Refer to the illustration at the top of
page 42. If needed, replace any worn or damaged sprockets. See your Xmotos dealer for assistance.
NOTICE
EXCESSIVE DRIVE CHAIN SLACK MAY
ALLOW THE DRIVE CHAIN TO DAMAGE
THE ENGINE CASES..
WARNING
1. Check the slack in the lower drive chain midway
between the sprockets
with your finger. The vertical movement should measure
between 08 –10 mm.
2. Repeat step 1 along several points of the drive chain.
The slack should remain constant through-out. If it is not,
some links may be kinked and binding. Lubricating the
chain will often stop this.
ALWAYS USE HIGH QUALITY LUBRICANT
FOR THE DRIVE CHAIN.
41
. Push upward on the chain
NOTICE

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