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3.58
ENGINE
TROUBLESHOOTING
Engine
Spark Plug Fouling
• Spark plug cap loose or faulty
• Incorrect spark plug heat range or gap
• PVT system calibrated incorrectly/ components worn or
mis-adjusted
• Fuel quality poor (old) or octane too high
• Low compression
• Restricted exhaust
• Weak ignition (loose coil ground, faulty coil, stator, or
ETC switch)
• ETC switch mis-adjusted
• Restricted air filter (main or pre-cleaner) or breather
system
• Improperly assembled air intake system
• Restricted engine breather system
• Oil contaminated with fuel
Engine Turns Over But Fails To Start
• No fuel
• Dirt in fuel line or filter
• Fuel will not pass through fuel valve
• Fuel pump inoperative/restricted
• Tank vent plugged or pinched
• Engine flooded
• Low compression (high cylinder leakage)
• No spark (Spark plug fouled) ignition component
failure
Engine Does Not Turn Over
• Dead battery
• Starter motor does not turn
• Engine seized, rusted, or mechanical failure
Engine Runs But Will Not Idle
• Restricted carburetor pilot system
• Low compression
• Crankcase breather restricted
Engine Idles But Will Not Accelerate
• Spark plug fouled/weak spark
• Broken throttle cable
• Obstruction in air intake
• Air box removed (reinstall all intake components)
• Incorrect or restricted carburetor jetting
• ETC switch limiting speed
• Reverse speed limiter limiting speed
• Incorrect ignition timing
• Restricted exhaust system
• Cam worn excessively
Engine Has Low Power
• Spark plug fouled
• Cylinder, piston, ring, or valve wear or damage (check
compression)
• PVT not operating properly
• Restricted exhaust muffler
• Cam worn excessively
Piston Failure - Scoring
• Lack of lubrication
• Dirt entering engine through cracks in air filter or ducts
• Engine oil dirty or contaminated
Excessive Smoke 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
Piston Failure - Scoring
• Lack of lubrication
• Dirt entering engine through cracks in air filter or ducts
• Engine oil dirty or contaminated
Содержание 2008 ranger 700 xp
Страница 1: ...POLARIS RANGER XP 700 4X4 RANGER 6X6 SERVICE MANUAL ...
Страница 3: ...POLARIS RANGER XP 700 4X4 RANGER 6X6 SERVICE MANUAL ...
Страница 15: ...1 12 GENERAL INFORMATION SAE Tap Drill Sizes Metric Tap Drill Sizes Decimal Equivalents ...
Страница 118: ...4 8 FUEL INJECTION FUEL TANK Exploded View Fuel Flow ...
Страница 136: ...5 4 BODY STEERING SUSPENSION Lower Body Components ...
Страница 302: ...10 19 ELECTRICAL 10 COOLING SYSTEM Cooling System Break Out Diagram EY N 6OLT 0OWER ...
Страница 327: ...11 1 WIRE DIAGRAM RANGER 700 EFI 4X4 6X6 CHASSIS PAGE 1 OF 2 ...
Страница 328: ...11 2 WIRE DIAGRAM RANGER 700 EFI 4X4 6X6 CHASSIS PAGE 2 OF 2 ...
Страница 329: ...11 3 WIRE DIAGRAM RANGER 700 EFI 4X4 6X6 DASH ...
Страница 330: ...11 4 WIRE DIAGRAM RANGER 700 EFI 4X4 6X6 BREAKOUTS ...