Polaris 2000 Universal Snowmobile - Manual (Page 146)

141
TROUBLESHOOTING
Engine Troubleshooting
Problem Probable Cause Solution
Engine does not
turn
Seized engine
Hydrostatic lock (fuel
has entered crank-
case while vehicle
was standing or being
transported)
CONTACT YOUR DEALER. Seizure is a re-
sult of poor lubrication, inadequate fuel supply,
broken parts, or improper cooling.
CONTACT YOUR DEALER to correct cause.
Drain plug(s) located on lower crankcase for
emergency draining.
Engine turns but
fails to start
Faulty ignition
No fuel to engine
Flooded engine (nor-
mal situation caused
by too much choking)
Poor engine compres-
sion
Remove spark plug(s) and replace with new
plug(s). If engine still fails to start, check for
spark; if no spark CONTACT YOUR DEALER.
a. Check tank level and fill up with correct
fuel.
b. Ice in fuel line, filter, or pump. On the stan-
dard Polaris carburetor, the choke will not
function with the throttle depressed. See se-
cond item under “Probable Cause” of “Engine
continually backfires”.
Hold throttle open, crank engine several times
(may be necessary to change plug(s), howev-
er, the plug(s) may operate satisfactorily when
dried).
Running too lean a mixture (too small a main
jet will cause seizure resulting in loss of pow-
er). CONTACT YOUR DEALER. This indi-
cates a major engine problem which must be
repaired before engine is run.
Engine lacks
power
Fouled or defective
spark plug
Fuel filter (loss of high
RPM power)
Incorrect clutching
Carburetor and fuel
pump
Change and test operation.
Check fuel filter flow. Disconnect hose and
drain about 1/2 cup. Fuel flow should be
steady and encompass the entire diameter of
fuel line. If not, replace filter.
CONTACT YOUR DEALER.
There is no adjustment to change power out-
put. CONTACT YOUR DEALER.
Engine continually
backfires
Faulty plug(s)
Carburetor Change plug(s)
Dirt or ice in fuel system. (Deicer should be
added to fuel at all times for assurance
against fuel line icing.
Engine requires
more than normal
pulls to start
Poor gasoline
Not enough fuel get-
ting to engine
Replace with “fresh” winter fuel.
Refer to page NO TAG for primer instructions