Suzuki LT-F500F 2002 - Page 350

SERVICING INFORMATION 9-5
Complaint Symptom and possible causes Remedy
Exhaust smoke is
dirty or thick.
1. Excessive amount of engine oil.
2. Worn piston ring or cylinder.
3. Worn valve guide.
4. Scored or scuffed cylinder wall.
5. Worn valve stem.
6. Defective valve stem oil seal.
Check level and drain.
Replace.
Replace.
Replace.
Replace.
Replace.
Engine lacks power. 1. Insufficient valve clearance.
2. Weak valve spring.
3. Mistimed valves.
4. Worn cylinder.
5. Worn piston ring.
6. Improper valve seating.
7. Fouled spark plug.
8. Incorrect spark plug gap.
9. Clogged carburetor jet.
10. Incorrect float chamber fuel level.
11. Dirty air cleaner element.
12. Worn rocker arm or shaft.
13. Air leakage from intake pipe.
14. Excessive amount of engine oil.
Adjust.
Replace.
Adjust.
Replace.
Replace.
Repair.
Clean or replace.
Adjust or replace.
Clean.
Adjust float height.
Clean or replace.
Replace.
Tighten or replace.
Check level and drain.
Engine overheats. 1. Carbon build-up on piston crown.
2. Insufficient amount of engine oil.
3. Defective oil pump.
4. Clogged oil circuit.
5. Float chamber fuel level too low.
6. Air leakage from intake pipe.
7. Incorrect engine oil.
Clean.
Check level and add.
Replace.
Clean.
Adjust float height.
Tighten or replace.
Change.