11-2
Engine
Problem: Engine will not start or is hard to start (Compression too low)
Condition
Remedy
1.
Valve clearance
out of adjustment
2.
Valve guides
worn - seated poorly
3.
Valves
mistimed
4.
Piston rings
worn excessively
5.
Cylinder bore
worn
6.
Spark plug
seating poorly
7.
Starter motor
cranks too slowly - does not turn
1. Adjust clearance
2. Repair - replace guides
3. Adjust valve timing
4. Replace rings
5. Replace - rebore cylinder
6. Tighten plug
7. See Electrical in this section
Problem: Engine will not start or is hard to start (No spark)
Condition
Remedy
1.
Spark plug
fouled
2.
Spark plug
wet
3.
Magneto
defective
4.
CDI unit
defective
5.
Ignition coil
defective
6.
High-tension lead
open - shorted
1. Clean - replace plug
2. Clean - dry plug
3. Replace magneto
4. Replace CDI unit
5. Replace ignition coil
6. Replace high tension lead
Problem: Engine will not start or is hard to start (No fuel reaching the carburetor)
Condition
Remedy
1.
Gas tank vent hose
obstructed
2.
Carburetor inlet needle
defective
3.
Fuel hose
obstructed
4.
Fuel screens
obstructed
5.
Gas tank valve
clogged or defective
6.
Electric fuel pump
defective
1. Clean vent hose
2. Replace needle
3. Clean - replace hose
4. Clean - replace inlet screen - valve screen
5. Clean - replace valve
6. Replace pump
Problem: Engine stalls easily
Condition
Remedy
1.
Spark plug
fouled
2.
Magneto
defective
3.
CDI unit
defective
4.
Carburetor jets
obstructed
5.
Valve clearance
out of adjustment
1. Clean plug
2. Replace magneto
3. Replace CDI unit
4. Clean jets
5. Adjust clearance
Problem: Engine noisy (Excessive valve chatter)
Condition
Remedy
1.
Valve clearance
too large
2.
Valve spring(s)
weak - broken
3.
Rocker arm
-
rocker arm shaft
worn
4.
Camshaft
worn
1. Adjust clearance
2. Replace spring(s)
3. Replace arm - shaft
4. Replace camshaft
Содержание 650 Twin2004
Страница 1: ...ATV Service Manual 2004 2004 A A RC C C T T I 650 Twin...
Страница 9: ...1 6 NOTES...
Страница 83: ...3 54 NOTES...
Страница 128: ...Wiring Diagram Harness p n 0486 147 739 259A 5 27...
Страница 156: ...6 28 NOTES...
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Страница 194: ...9 10 NOTES...
Страница 198: ...10 4 NOTES...
Страница 210: ...ARCTIC CAT Printed in U S A Trademarks of Arctic Cat Inc Thief River Falls MN 56701 p n 2257 030...