538
Engine Type
Front
A016
002
001
IMPORTANT: Engine head nut torque
should
be
checked after the first five
(5) hours of operation.
Engine
Mount
Screws
Check engine mount screws for tight-
ness.
Retighten if necessary to 25
N•m
(18
lbf•ft).
Air
Filter
Leaving the vehicle uncovered during a
snowfall or riding in deep powder snow
may block air filter.
Lift hood and remove air filter from air
intake silencer.
Air intake silencer
A016
002
012
38
---------------------------
To
clean the filter, shake the snow
out
of it then, dry it out.
Check that the air box
is
clean and dry
and reinstall the filter.
-.r
CAUTION: These vehicles have
T been calibrated
with
the filter in-
stalled. Operating
the
vehicle
without
it
will
cause damage
to
the
engine.
Reinstall properly.
Carburetor
Adjustment
-.r
CAUTION: Never operate your
T snowmobile
with
the
air intake
silencer disconnected. Serious engine
damage
will
occur
if
this
notice is dis-
regarded.
-.r
CAUTION: Make sure both car-
T buretors
start
to
operate simul-
taneously.
A
B
A002
002
009
A)
Air
Screw
Adjustment
Slowly close the air screw (until a slight
seating resistance
is
felt) then unscrew
number
of
turns shown below:
467
engine type: 1
112
turns
536
engine type: 1 1/3 turns
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