Suzuki GW250 Service Manual page 418

10-8 SERVICING INFORMATION
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
1. Too much engine oil in the engine
2. Worn piston rings or cylinders
3. Worn valve guides
4. Scored or scuffed cylinder walls
5. Worn valves stems
6. Defective stem oil seal
7. Worn oil ring side rails
1. Weakened clutch springs
2. Worn or distorted pressure plate
3. Distorted clutch plates
4. Clutch release screw out of adjustment
1. Some clutch spring weakened while others
are not
2. Distorted pressure plate or clutch plates
3. Clutch release screw out of adjustment
1. Broken gearshift cam
2. Distorted gearshift forks
3. Worn gearshift pawl
1. Broken return spring on shift shaft
2. Rubbing or stickily shift shaft
3. Distorted or worn gearshift forks
1. Worn shifting gears on driveshaft or
countershaft
2. Distorted or worn gearshift forks
3. Weakened stopper spring on gearshift stopper
4. Worn gearshift cam stopper plate
Remedy
Check with inspection
window, drain out excess
oil.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Adjust.
Replace.
Replace.
Adjust.
Replace.
Replace.
Replace.
Replace.
Repair or replace.
Replace.
Replace.
Replace.
Replace.
Replace.