Spark Plug; Brake - Arctic Cat Sno Pro 120 2013 Operator's Manual

Spark Plug

This snowmobile comes equipped with a
specified spark plug. See the specifications
chart for the correct spark plug. A light
brown insulator indicates that the plug is
correct. A white or dark insulator indicates
that the engine may need to be serviced or
the carburetor may need to be adjusted.
Consult an authorized Arctic Cat Snowmo-
bile dealer if the plug insulator is not a
light brown color. To help prevent cold
weather fouling, make sure to thoroughly
warm up the engine before operating.
To maintain a hot, strong spark, keep the
plug free of carbon.
Before removing the spark plug, be sure
to clean the area around the spark plug. If
you do not, dirt could enter engine when
removing or installing the spark plug.
Adjust the gap to specified amount (see
specifications chart) for proper ignition.
Use a feeler gauge to check the gap.
When installing the spark plug, be sure to
tighten it securely. A new spark plug should
be tightened 1/2 turn once the washer con-
tacts the cylinder head. A used spark plug
should be tightened 1/8 - 1/4 turn once the
washer contacts the cylinder head.

Brake

! WARNING
DO NOT operate the snowmobile
when any component in the brake
system is damaged,
adjusted improperly.
Arctic Cat recommends that the complete
brake system be checked daily for wear or
damage and for smooth operation. Periodi-
cally, the brake band should be inspected
for cracks and to ensure the liner is intact
and not worn excessively. Replace the
brake band if cracked or worn excessively.
Checking Brake Lever
Travel
1. Compress the brake lever fully.
2. Check the distance between the
3. If travel distance is not as specified,
Adjusting Brake Lever
Travel
To adjust the brake lever travel, use the
following procedure:
1. Remove the drive chain shield.
2. Loosen the rearward brake cable jam
ATV0052B
3. Check the brake lever travel distance
worn, or
brake lever and the lever stop. The
distance must be within the specified
range of 6-13 mm (1/4-1/2 in.).
adjust the brake.
nut; then tighten the forward jam nut
to set up the brake.
periodically while tightening the for-
ward jam nut. When the distance is
within the specified range of 6-13 mm
(1/4-1/2 in.), tighten the rearward jam
nut to secure the adjustment.
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