Suzuki RM250 Owner's Service Manual page 32

3-3 TROUBLESHOOTING
Complaint Possible Cause Remedy
Overheating Low engine coolant level
Replenish
Engine coolant teak Repair
Too lean air/fuel mixture Adjust
Incorrect ignition timing Adjust
Water pump malfunction Adjust or replace
Cylinder head carbon deposits Clean
Exhaust pipe carbon deposits Clean or replace
Improper spark plug heat range Replace
Fuel deterioration Replace
Clutch slipping Adjust or replace
Radiator cap loose Tighten
Radiator fins damaged Repair or replace
Excessive coolant
Radiator hose cracked or damaged Replace
level decrease
Loose radiator hose connection Repair
Radiator cracked or damaged Repair or replace
Water pump cover mating surface damage Replace
Water pump cover crack
Replace
Water pump cover gasket damage Replace
Water seal wear or damage Replace
Radiator cap seal damage Replace
Incorrect radiator cap va lve pressure Replace
Cylinder or cylinder head cracked Replace
Cylinder or cylinder head O-rings damage Replace
Clutch does not Clutch lever play maladjustment Adjust
disengage Clutch spring damage Replace
Clutch plates distortion Replace
Clutch slipping Clutch cable play maladjustment Adjust
Weakened clutch spring Replace
Clutch pressure plate wear Replace
Clutch plate distortion
Replace
Clutch plates worn
Replace
In sufficient clutch capacity • Use optional parts
Transmission does Gearshift cam damage
Replace
not shift Gearshift fork distortion Replace
Gearshift pawl wear Replace
Transmission gears Gearshift fork groove wear or damage Replace
jump out
Gearshift fork distortion or wear
Replace
Gearshift cam stopper damage
Replace
Gearshift lever Weakened gearshift return spring
Replace
does not return Gearshfit lever sticking
Repair or replace
• Air larger capac ity optional clutch set is avail ad Ie at your SUZUKI dealer.