ENGINE
3.59
TROUBLESHOOTING
Spark Plug Fouling
S
Spark plug cap loose or faulty
S
Incorrect spark plug heat range or
gap
S
PVT system calibrated incorrectly/
components worn or mis-adjusted
S
Fuel quality poor (old) or octane too
high
S
Low compression
S
Restricted exhaust
S
Weak ignition (loose coil ground,
faulty coil, stator, or ETC switch)
S
ETC switch mis-adjusted
S
Restricted air filter (main or
pre-cleaner) or breather system
S
Improperly assembled air intake
system
S
Restricted engine breather system
S
Oil contaminated with fuel
Engine Turns Over But Fails to Start
S
No fuel
S
Dirt in fuel line or filter
S
Fuel will not pass through fuel valve
S
Fuel pump inoperative/restricted
S
Tank vent plugged or pinched
S
Engine flooded
S
Low compression (high cylinder
leakage)
S
No spark (Spark plug fouled)
ignition component failure
Engine Does Not Turn Over
S
Dead battery
S
Starter motor does not turn
S
Engine seized, rusted, or
mechanical failure
Engine Runs But Will Not Idle
S
Restricted carburetor pilot system
S
Low compression
S
Crankcase breather restricted
Engine Idles But Will Not Rev Up
S
Spark plug fouled/weak spark
S
Broken throttle cable
S
Obstruction in air intake
S
Air box removed (reinstall all intake
components)
S
Incorrect or restricted carburetor
jetting
S
ETC switch limiting speed
S
Reverse speed limiter limiting
speed
S
Incorrect ignition timing
S
Restricted exhaust system
S
Cam worn excessively
Engine Has Low Power
S
Spark plug fouled
S
Cylinder, piston, ring, or valve wear
or damage (check compression)
S
PVT not operating properly
S
Restricted exhaust muffler
S
Cam worn excessively
Summary of Contents for Sportsman 800 Efi 2005
Page 116: ...ENGINE 3 62 NOTES ...
Page 136: ...FUEL SYSTEM FUEL INJECTION 4 20 NOTES ...
Page 186: ...CLUTCH 6 30 NOTES ...
Page 256: ...BRAKES 9 24 NOTES ...
Page 292: ...ELECTRICAL 10 36 BASIC WINCH WIRING 2005 ATV MODELS 2005 ATV WINCH WIRING DIAGRAM ...
Page 300: ...ELECTRICAL 10 44 NOTES ...
Page 301: ...ELECTRICAL 10 39 WIRING DIAGRAM 2005 SPORTSMAN 700 800 EFI Stator ...
Page 302: ...ELECTRICAL 10 40 WIRING DIAGRAM 2005 SPORTSMAN 700 800 EFI ...