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Periodic maintenance and adjustment
53
Before installing any spark plug, measure the
spark plug gap with a wire thickness gauge
and adjust to specification.
When installing the spark plug, always clean
the gasket surface. Wipe off any grime from
the threads and tighten the spark plug to the
specified torque.
NOTICE
ECS00383
Make sure that the spark plug caps are se-
curely installed. Otherwise the spark plug
caps could be damaged due to engine vi-
bration.
ESU14731
Adjusting the throttle lever free
play
1.
Place the snowmobile on a level surface
and apply the parking brake.
2.
Remove the shroud, the left and right
side covers, and the top cover. (See
page 50 for removal procedures.)
3.
Remove the headlight unit bolt and the
windshield stay bolts on each side of the
snowmobile.
4.
Unhook the headlight unit as shown,
then lift it up and move it forward, away
from the air filter case cover.
NOTICE:
Be careful not to scratch the snowmo-
bile when moving the headlight unit.
[ECS00921]
5.
Loosen the locknut.
6.
To increase the throttle lever free play,
turn the adjusting bolt in direction (a). To
decrease the throttle lever free play, turn
the adjusting bolt in direction (b).
1. Spark plug gap
2. Spark plug reach
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Spark plug tightening torque:
13 Nm (1.3 m·kgf, 9.4 ft·lbf)
1. Headlight unit bolt
2. Windshield stay bolt
1. Headlight unit
1
2
1
U8HXS3E0.book Page 53 Wednesday, April 2, 2014 2:44 PM