Suzuki Vinson LT-A500F - Page 288

SERVICING INFORMATION 9-3
Complaint
Symptom and possible causes
Remedy
Engine is noisy. Excessive valve chatter
1. Excessive valve clearance.
Adjust.
2. Weak or broken valve spring.
Replace.
3. Worn rocker arm or rocker arm shaft.
Replace.
Noise seems to come from the piston
1. Worn piston.
Replace.
2. Worn cylinder.
Replace.
3. Carbon build-up in combustion chamber.
Clean.
4. Worn piston pin or piston pin bore.
Replace.
5. Worn piston ring or ring groove. Replace.
Noise seems to come from the cam chain
1. Stretched cam chain.
Replace cam chain and
sprockets.
2. Worn cam chain sprocket. Replace cam chain and
sprockets.
3. Improperly working cam chain tension adjuster. Repair or replace.
Noise seems to come from the clutch
1. Worn crankshaft spline.
Replace crankshaft.
2. Worn inner race spline. Replace inner race.
Noise seems to come from the crankshaft
1. Rattling bearing.
Replace.
2. Worn or burnt crank pin bearing. Replace.
3. Excessive thrust clearance. Replace thrust bearing.
Noise seems to come from the movable drive and
driven face
1. Worn or slipping drive belt.
Replace.
2. Worn rollers in movable drive face.
Replace.
Noise seems to come from the transmission
1. Worn or rubbing gear.
Replace.
2. Worn driveshaft spline. Replace driveshaft.
3. Worn bearing.
Replace.
4. Worn bushing. Replace.
Noise seems to come from secondary bevel gear
differential bevel gear and final bevel gear
1. Worn or damage drive and driven bevel gears. Replace.
2. Excessive backlash. Adjust.
3. Improper tooth contact. Adjust.
4. Damage bearing. Replace.
5. Worn or rubbing gears. Replace.
6. Worn driveshaft spline. Replace driveshaft.
7. Front driven gear thrust clearance too large. Adjust or replace.
8. Final driven gear thrust clearance too large. Adjust or replace.
Transmission will not 1. Broken gearshift cam. Replace.
shift. 2. Distorted gearshift fork. Replace.
3. Worn gearshift shaft. Replace.
4. Improperly adjusted gearshift cable. Adjust.