CSC SG250 - Page 104

SG250 Owner’s and Service Manual
www.CSCMotorcycles.com
104
Check the two drive gears that interface with the starter
motor gear transfer gears and the engine start drive
gear. Note that the gear cluster has thin shims on either
side; take care not to lose these. If either is damaged,
replace the transfer gears. If you need replacement gears,
please call us at 909 445 0900.
Check the engine start drive gear behind the rotor. Examine
the engine start drive gear for any defects. Check for
rotation; the engine start drive gear should rotate in only
one direction. If it can be rotated in either direction, the
sprig clutch is defective and it must be replaced. If the
engine start drive gear is defective, it must be replaced. If
you need replacement parts, please call us at 909 445 0900.
If you need to replace the engine start drive gear or the
sprag clutch, you will have to remove the rotor. To do so,
remove the rotor attach bolt.
Remove the rotor with a gear puller. If you need the gear
puller, we sell them. Please call us at 909 445 0900.
After you have removed the rotor, you will see the engine
start drive gear sprag clutch. This clutch drives the engine
start drive gear in one direction only. After the engine has
started, the crankshaft and the engine start drive gear can
spin freely in the sprag clutch. Inspect the sprag clutch for
any damage. Remove the sprag clutch from the rotor and
replace the sprag clutch if it is damaged or if it allows the
engine start drive gear to spin in either direction.