Arctic Cat 2015 ZR 5000 Service Manual page 100

Problem: Engine Overheats
Condition
1. Coolant low — absent
2. Heat exchanger obstructed
3. Drive system (drive clutch — driven clutch — track —
drive belt) adjusted incorrectly — worn — damaged
4. Rings/grooves carboned
5. Exhaust obstructed
6. Compression low — absent
7. Water pump — thermostat damaged — faulty
Problem: Engine Backfires
Condition
1. Check Engine light illuminated
2. Spark plugs fouled — damaged
Problem: Engine Stops Suddenly
Condition
1. Gas tank empty
2. Spark absent
3. Check Engine light illuminated
4. Fuel filter(s) obstructed
5. Fuel pressure low
6. Fuel pump faulty
7. Fuel pump relay faulty
8. Gas tank vent hose obstructed
9. ECM faulty
10. Fuel hose obstructed — broken — pinched
11. Ignition coil faulty
12. Engine seized
13. Throttle/ignition monitor switch — throttle cable ten-
sion faulty — adjusted incorrectly
14. Oil pressure low
15. Engine coolant temperature above normal
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Remedy
1. Add coolant
2. Remove obstruction
3. Troubleshoot — adjust drive system
4. Clean — replace rings — pistons
5. Remove obstruction
6. Repair — replace damaged — worn engine components
7. Replace water pump — thermostat
Remedy
1. Check codes — replace problem component
2. Clean — replace spark plugs
Remedy
1. Fill tank
2. See No Spark at Spark Plugs sub-section
3. Check codes — replace problem component
4. Replace filter(s)
5. Replace regulator — hose
6. Service — replace fuel pump
7. Replace relay
8. Service vent hose
9. Replace ECM
10. Remove obstruction — repair — replace fuel hose
11. Replace ignition coil
12. Overhaul engine
13. Replace throttle control — adjust throttle cable
14. Check oil level/engine
15. Inspect cooling system