1.36
9850068 R01 - 2020-2021
RZR
PRO XP / XP 4 Service Manual
© Copyright Polaris Industries Inc.
ENGINE HAS LOW POWER
• Spark plug fouled
• Cylinder, piston, ring, or valve
wear or damage (check
compression)
• Poor fuel quality
• PVT not operating properly
• Cam worn excessively
• Restricted exhaust muffler
• Low fuel pressure
PISTON FAILURE - SCORING
• Lack of lubrication
• Improper air filter maintenance
• Dirt entering engine through
cracks in air filter or ducts
• Engine oil dirty or contaminated
EXCESSIVE SMOKE (BLUE / BLACK) AND CARBON BUILDUP
• Excessive piston-to-cylinder
clearance
• Wet sumping
• Worn rings, piston, or cylinder
• Worn valve guides or seals
• Restricted breather
• Air filter dirty or contaminated
LOW COMPRESSION
• Cylinder head gasket leak
• No valve clearance (cam wear)
• Valve not seating properly (bent or
carbon accumulated on sealing
surface)
• Cylinder or piston worn
• Bent valve or stuck valve
• Piston rings worn, leaking, broken,
or sticking
• Valve spring broken or weak
BACKFIRING
• Ignition system faulty:
–
Spark plug cap cracked /
broken
–
Ignition coil faulty
–
Ignition or kill switch circuit
faulty
–
Poor connections in ignition
system
–
Ignition timing incorrect
–
Sheared flywheel key
• Intake system air leaks
• Fouled spark plug or incorrect plug
or plug gap
• Low fuel pressure
• Poor fuel quality
• Exhaust system air leaks
• Valve sticking
• Throttle Body (installed incorrect /
electrical concern / failed)
Содержание RZR PRO XP 2020
Страница 3: ...REVISION INDEX REV DATE CHANGES R01 11 10 2020 Initial Release...
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Страница 10: ...1 4 9850068 R01 2020 2021 RZR PRO XP XP 4 Service Manual Copyright Polaris Industries Inc GENERAL INFORMATION...
Страница 144: ...2 58 9850068 R01 2020 2021 RZR PRO XP XP 4 Service Manual Copyright Polaris Industries Inc NOTES MAINTENANCE...
Страница 246: ...3 102 9850068 R01 2020 2021 RZR PRO XP XP 4 Service Manual Copyright Polaris Industries Inc NOTES ENGINE COOLING SYSTEM...
Страница 290: ...5 30 9850068 R01 2020 2021 RZR PRO XP XP 4 Service Manual Copyright Polaris Industries Inc NOTES EFI FUEL SYSTEM...
Страница 358: ...7 20 9850068 R01 2020 2021 RZR PRO XP XP 4 Service Manual Copyright Polaris Industries Inc NOTES TRANSMISSION...
Страница 404: ...8 46 9850068 R01 2020 2021 RZR PRO XP XP 4 Service Manual Copyright Polaris Industries Inc NOTES FINAL DRIVE...
Страница 478: ...9 74 9850068 R01 2020 2021 RZR PRO XP XP 4 Service Manual Copyright Polaris Industries Inc NOTES STEERING SUSPENSION...
Страница 587: ...Symptom and Occurrence Checklist BEEN PRESENT SINCE NEW 51...
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