Polaris Predator 90 Service Manual

ENGINE
2.25
that easily come out of place. Upon assembly, do not
lubricate the one way rollers with heavy grease,
as
this will cause the one--way drive to
malfunction.
5. Inpect the washer and needle bearing. Replace if
any roughness or wear is present.
Washer
Needle
Bearing
6. To reinstall the starter drive one--way, reverse the
procedures.
TROUBLESHOOTING
Spark Plug Fouling
G Spark plug cap loose or faulty
G Choke plunger sticking or
inoperative
G Foreign material on choke plunger
seat or plunger
G Incorrect spark plug heat range or
gap
G Carburetor inlet needle and seat
worn
G Jet needle and/or needle jet worn or
improperly adjusted
G Excessive carburetor vibration
(loose or missing needle jet locating
clips)
G Loosejets in carburetor or calibration
incorrect for altitude/temperature
G Incorrect float level setting
G CVT system calibrated incorrectly/
components worn or mis-adjusted
G Fuel quality poor (old) or octane too
high
G Low compression
G Plugged exhaust
G Weak ignition (loose coil ground,
faulty coil, stator, or ETC switch)
G ETC switch mis-adjusted
G Restricted air filter (main or
pre-cleaner) or breather system
G Improperly assembled air intake
system
G Restricted air breather system
G Oil contaminated
Engine Turns Over But Fails to Start
G No fuel
G Dirt in fuel line or filter
G Fuel will not pass through fuel valve
G Tank vent plugged or pinched
G Carb starter circuit plugged
G Engine flooded
G Low compression (high cylinder
leakage)
G No spark (Spark plug fouled)
ignition component failure
G Safety switches malfunctioning
(Ignition, Kill, Brake--to--start)
G Electrical malfunction
Engine Does Not Turn Over
G Dead battery
G Starter motor does not turn
G Engine seized, rusted, or
mechanical failure
G Safety switches malfunctioning
(Ignition, Kill, Brake--to--start)
Engine Runs But Will Not Idle
G Restricted carburetor pilot system
G Carburetor misadjusted
G Low compression
G Air breather restricted
Engine Idles But Will Not Rev Up
G Spark plug fouled/weak spark
G Broken throttle cable
G Obstruction in air intake
G Air box removed (reinstall all intake
components)
G Incorrect or restricted carburetor
jetting
G ETC switch limiting speed
G Carburetor slide sticking, damaged
G Incorrect ignition timing
G Restricted exhaust system
Engine Has Low Power
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Polaris Predator 90 Specifications

General

Brand	Polaris
Model	Predator 90
Category	Offroad Vehicle
Language	English