GPX 250r TSE, Maintenance Manual

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When checking the chain tension, you should also check the plastic chain guides, the chain split link
and both front and rear sprocket for wear or damage .
When the chain is over-used, or the stretch exceeds 2%, the chain should be replaced. Replace and
change the relevant guide rail and both sprockets at the same time. If you only replace the chain
without replacing both sprockets the new chain will very quickly be worn and the service life will
be much shorter. In any circumstances it is normal for these items to wear at a reasonable rate , due
to the harsh condition they operate in.
We repeat , from an economic point of view, it is worthwhile to replace the entire chain drive
system at the same time.
At any time, you should use the original parts from GPX factory or the ones authorized by GPX .
The chain needs to be lubricated regularly, see the lubrication section for details.
NOTE : The alternating wet and dry working environment will greatly shorten the service life of the
chain and its surrounding accessories. Therefore, please follow the correct lubrication method and
select a suitable lubricant for lubrication.
NOTE : If the chain needs to be tightened frequently, or if you find any signs of wear on the front
sprocket, rear sprocket and the chain, please contact GPX dealer for a thorough inspection to
avoid safety problems.