SG250 Owner’s and Service Manual
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Remove the countershaft sprocket cover by removing the bolts that attach it to the engine. You don’t
have to remove the gear shift lever to remove the countershaft sprocket cover.
If the sprocket teeth are hooked or otherwise excessively worn, replace both sprockets. If the chain has
excessive stretch or if it has kinks that you cannot work out by manually rotating the links with respect to
each other, it’s time for a new chain.
The SG250 motorcycle chain does not have a master link. When you need to replace the original
equipment chain on your motorcycle, you have to cut it off.
Please call us at 909 445 0900 to order replacement chains and sprockets.
Chain Drive Troubleshooting
Troubleshooting and maintenance activities for the chain drive system are summarized in the table
below.
Chain Drive Troubleshooting and Maintenance
Inadequate lubrication,
misaligned rear wheel,
incorrect chain
adjustment
Chain skipping, chain
breakage
Replace chain and
both sprockets
Inadequate lubrication,
misaligned rear wheel,
incorrect chain
adjustment
Chain skipping, chain
breakage
Replace chain and
both sprockets
Inadequate lubrication,
misaligned rear wheel,
incorrect chain
adjustment
Chain skipping, chain
breakage
Replace chain and
both sprockets
Inadequate lubrication,
misaligned rear wheel,
incorrect chain
adjustment
Chain breakage, loss of
power, stiff rear
suspension
Improper adjustment of
chain’s tension
Chain skipping on
sprocket, excessive chain
slap
Clutch Maintenance
This section of the SG250 Owner’s and Service Manual addresses clutch cable installation, clutch
adjustment, and clutch replacement. Note that some of the photos in this portion of the Service Manual
show the TT250 motorcycle. The engines in the SG250 and TT250 motorcycles are identical.
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