CSC SG250 - Page 2

SG250 Owner’s and Service Manual
www.CSCMotorcycles.com
2
Chain Lubrication ........................................................................................................................................ 25
Chain Adjustment ....................................................................................................................................... 25
Sprocket and Chain Inspection ................................................................................................................... 27
Chain Drive Troubleshooting ...................................................................................................................... 28
Clutch Maintenance .................................................................................................................................... 28
Clutch Cable Installation and Adjustment .................................................................................................. 29
Clutch Replacement .................................................................................................................................... 30
Clutch Troubleshooting ............................................................................................................................... 39
Suspension .................................................................................................................................................. 40
Forks ............................................................................................................................................................ 40
Changing Fork Oil and Replacing Fork Seal ................................................................................................. 40
Swingarm and Rear Suspension .................................................................................................................. 44
Swingarm and Rear Suspension Troubleshooting ...................................................................................... 47
Steering System .......................................................................................................................................... 48
Steering Stem Bearing Adjustment ............................................................................................................. 48
Steering System Troubleshooting ............................................................................................................... 50
Wheels and Tires ......................................................................................................................................... 50
Front Wheel Removal ................................................................................................................................. 51
Rear Wheel Removal ................................................................................................................................... 52
Wheel and Tire Inspection .......................................................................................................................... 55
Wheel and Tire Troubleshooting ................................................................................................................ 55
Fixing Flat Tires ........................................................................................................................................... 55
Engine.......................................................................................................................................................... 58
Oil Change ................................................................................................................................................... 58
Spark Plug Removal and Installation ........................................................................................................... 62
Valve Adjustment ........................................................................................................................................ 62
Carburetor ................................................................................................................................................... 69
Air Filter Replacement ................................................................................................................................ 80
Exhaust System ........................................................................................................................................... 81
Engine Troubleshooting .............................................................................................................................. 83
Fuel System ................................................................................................................................................. 84
Fuel System Troubleshooting...................................................................................................................... 87
Control Cables ............................................................................................................................................. 88
Clutch and Throttle Cable Troubleshooting ................................................................................................ 88
Electrical System ......................................................................................................................................... 88
Battery......................................................................................................................................................... 93
Lighting and Turn Signals ............................................................................................................................ 95
Charging System .......................................................................................................................................... 97
Starting System ......................................................................................................................................... 100
Electrical System Troubleshooting ............................................................................................................ 105
Electrical Schematic .................................................................................................................................. 107
Appendix A - Service Checklists ................................................................................................................ 108