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CAUTION: If spark plug condi-
... tion is not ideal, contact your
dealer.
Check spark plug gap using a wire
feeler gauge. Gap must be 0.50 mm
(,020"). Reinstall plugs and connect
wires. Correct spark plugs are Bosch
W340S2S or equivalent.
Disconnect spark plug wires and re-
move spark plugs. Check condition of
plugs.
• A brownish tip reflects ideal condi-
tions (correct carburetor adjus-
tment, spark plug heat range, etc.).
• A black insulator tip indicates fou-
ling caused by: carburetor idle speed
mixture and / or high speed mixture
too rich, incorrect fuel mixing ratio,
wrong type of spark plug (heat
range), or excessive idling.
• A light grey insulator tip indicates a
lean mixture caused by: carburetor
high speed mixture adjusted too
lean, wrong spark plug heat range,
incorrect fuel mixture ratio, or a
leaking seal or gasket.
Fouled
(black)
Overheated
lIight grey)
The
following
Maintenance
Chart
indicates regular servicing schedules
to be performed by you or your ser-
vicing dealer. If these services are per-
formed as suggested, your snowmobile
will give you many years of low-cost
use.
•
WARNING: Only perform such
procedures as detailed in this
manual. It is recommended that dealer
assistance be periodically obtained on
other components / systems not cov-
ered in this manual. Unless otherwise
specified, engine should be turned OFF
for all lubrication and maintenance
procedures.
Code Weekly
Page
W1
Spark plugs
12
W2
Suspension (condition)
12
W3
Track
12
W4
Suspension (adjustment)
13
W5
Carburetor adjustment
14
W6
Drive belt
14
W7
Drive puliev
14
Code Monthly
Page
M1
Steering mechanism
16
M2
Steering adjustment
16
M3
Cooling system
16
M4
Brake
17
M5
Engine head nuts
17
M6
Engine mount nuts
17
M7
Exhaust system
17
M8
Vehicle general
inspection
17
Visually inspect suspension springs.
Replace any weak or broken spnng.
Inspect shoe condition of slide suspen-
sion and replace as necessary.
With rear of vehicle off the ground, ro-
tate track and inspect condition. Check
for bad cuts, missing inserts or track
guides. If bad cuts, missing or defec-
tive inserts or guides are noted, contact
your dealer.
12
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