Arctic Cat 2009 366 Service Manual page 31

Problem: Engine lacks power
Condition
1. Valve clearance incorrect
2. Valve springs weak
3. Valve timing incorrect
4. Piston ring(s) - cylinder worn
5. Valve seating poor
6. Spark plug fouled
7. Rocker arms - shafts worn
8. Spark plug gap incorrect
9. Carburetor jets obstructed
10. Float level out of adjustment
11. Air cleaner element obstructed
12. Oil (in the engine) overfilled - contaminated
13. Intake manifold leaking air
14. Cam chain worn
Problem: Engine overheats
Condition
1. Carbon deposit (piston crown) excessive
2. Oil low
3. Octane low - gasoline poor
4. Oil pump defective
5. Oil circuit obstructed
6. Gasoline level (in float chamber) too low
7. Intake manifold leaking air
8. Fan malfunctioning
9. Fan switch malfunctioning
Back
Back to TOC
Remedy
1. Adjust clearance
2. Replace springs
3. Re-time valve gear
4. Replace - service rings - cylinder
5. Repair seats
6. Clean - replace plug
7. Replace arms - shafts
8. Adjust gap - replace plug
9. Clean jets
10. Adjust float height
11. Clean element
12. Drain excess oil - change oil
13. Tighten - replace manifold
14. Replace cam chain
Remedy
1. Clean piston
2. Add oil
3. Drain - replace gasoline
4. Replace pump
5. Clean circuit
6. Adjust float height
7. Tighten - replace manifold
8. Check fan fuse - replace fan
9. Replace fan switch
Back to Section TOC
3
Next
3-5