Suzuki RM-z450 Owner's Service Manual page 59

Complaint
Dirty or heavy
exhaust smoke
Slipping clutch
Dragging clutch
Transmission will
not shift.
Transmission will
not shift back.
Transmission jumps
out of gear.
Symptom and possible causes
• Too much engine oil in the engine
• Worn piston ring or cylinder
• Worn valve guides
• Scored or scuffed cylinder wall
• Worn valves stems
• Defective stem seal
• Worn oil ring side rails
• Weakened clutch springs
• Worn or distorted pressure plate
• Worn or distorted clutch plates
• Insufficient clutch cable play
• Some clutch spring weakened while others are not
• Distorted pressure plates or clutch plates
• Broken gearshift cam
• Distorted gearshift forks
• Worn gearshift pawl
• Broken return spring on shift shaft
• Rubbing or stickily shift shaft
• Distorted or worn gearshift forks
• Worn shifting gears on driveshaft or countershaft
• Distorted or worn gearshift forks
• Weakened stopper spring on gearshift stopper
• Worn gearshift cam plate
TROUBLESHOOTING
Remedy
Drain out excess oil
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Adjust
Replace
Replace
Replace
Replace
Replace
Replace
Repair or replace
Replace
Replace
Replace
Replace
Replace
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