Arctic Cat VLX 70002017, Руководство по обслуживанию

Страница: 34 / 138

33
Problem: Engine noisy (Noise seems to come from secondary bevel gear and final driven shaft)
Condition Remedy
1. Drive - driven bevel gears damaged - worn
2. Backlash incorrect
3. Tooth contact improper
4. Bearing damaged
5. Gears worn
6. Splines worn
1. Replace gears
2. Adjust backlash
3. Adjust contact
4. Replace bearing
5. Replace gears
6. Replace shaft(s)
Problem: Engine idles poorly
Condition Remedy
1. Gasoline bad
2. Valve clearance incorrect
3. Valve seating poor
4. Valve guides defective
5. Rocker arms - arm shaft worn
6. Magneto defective
7. ECM defective
8. Spark plug fouled - gap incorrect
9. Ignition coil defective
10. Fuel injector obstructed
1. Drain gas - replace with clean gas
2. Adjust clearance
3. Replace - service seats - valves
4. Replace guides
5. Replace arms - shafts
6. Replace stator coil
7. Replace ECM
8. Adjust gap - replace plug
9. Replace ignition coil
10. Replace fuel injector
Problem: Engine runs poorly at high speed
Condition Remedy
1. High RPM “cut out” against RPM limiter
2. Valve springs weak
3. Valve timing incorrect
4. Cams - rocker arms - tappets worn
5. Spark plug gap incorrect
6. Ignition coil defective
7. Fuel pump defective
8. Air cleaner element obstructed
9. Fuel hose obstructed
1. Shift into higher gear - decrease speed
2. Replace springs
3. Time valves
4. Replace cams - arms - tappets
5. Adjust gap
6. Replace ignition oil
7. Replace fuel pump
8. Clean element
9. Clean or replace hose
Problem: Exhaust smoke dirty or heavy
Condition Remedy
1. Engine oil overfilled - contaminated
2. Piston rings - cylinder worn
3. Valve guides worn
4. Cylinder wall scored
5. Valve stems worn
6. Stem seals defective
1. Drain excess oil - replace oil
2. Replace - service rings - cylinder
3. Replace guides
4. Replace - service cylinder
5. Replace valves
6. Replace seals
Problem: Engine lacks power
Condition Remedy
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. Fuel injector obstructed
10. Cam chain worn
11. Air cleaner element obstructed
12. Engine oil overfilled - contaminated
13. Intake manifold leaking air
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. Replace injector
10. Replace cam chain
11. Clean element
12. Drain excess oil - change oil
13. Tighten - replace manifold
Problem: Engine overheats
Condition Remedy
1. Carbon deposit (piston crown) excessive
2. Oil low
3. Octane low - gasoline poor
4. Oil pump defective
5. Oil circuit obstructed
6. Intake manifold leaking air
7. Fan malfunctioning
8. Fan relay malfunctioning
9. Radiator hoses - cap damaged - obstructed
10. Coolant level low
11. Thermostat stuck - closed
1. Clean piston
2. Add oil
3. Drain - replace gasoline
4. Replace pump
5. Clean circuit
6. Tighten - replace manifold
7. Replace fan relay
8. Check fan fuse - replace fan
9. Clear obstruction - replace hoses
10. Fill - examine system for leaks
11. Replace thermostat