Ski-Doo Alpine 640ER - Page 23

Engine lacks accelera-
tion 01' power
1. Fouled or defective spark
plug
WHAT TO 00
Check nem 2of "Engine turns over bUI fails
to start or starts with difficulty"
2. Clogged fuel line (water or
dirt)
Check fuel line condition. I See iwm5of "En-
gine turns over but fails to start or stsrts
with difiiculty"1.
3, Carburetor ReadjuS! the carburetor. ISee Maintenance
seetienl If trouble persists, COnlact your
dealer,
4. Faulty ignition First check item 2 and 3of "Engine turns
over bUI fails tostanur starts with difficul-
t</'. if !fIe ignition system still seems
faulty, contact your dealer.
Engine continuatlv
backfires
5. Engine
1. Faulty spark plug
If unable to locate specific symptoms, con-
tact ynur dealer.
Check item 2 of"Engine turns over but fails
tostartor starts with diftieulty".
2. Overheated
Carburetor set tOil lean. Contan your dealer.
-----.".------.----t-----------~--
Snowmobile cannot
mach full speed
3. Engine timin(~ incorrectly set
'I. Drive belt
Contact yDuf dealar.
Chec,k for damaged (If worn drive belt. Re·
place if nece~safY.
2. Incorrect track adjustment ChUCK Hoek tension and alignment. Readjust
to spacifieanons. ISee Maintenance Section!,
3. Faulty engine
4. Pulley misaligned
Check itarn 1to5of "Engine lacks acce!r;r·
aticn or pOWBr".
Contact your ,1ealer.
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