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Periodic maintenance
Throttle cable free play:
2.0–3.0 mm (0.08–0.12 in)
4.
Tighten the locknut.
5.
Install the right side cover and the shroud.
ESU11861
Checking the throttle override
system (T.O.R.S.)
Check the T.O.R.S. for proper operation.
EWS00351
WARNING
When checking the T.O.R.S.:
Make sure that the parking brake is ap-
G
plied.
Make sure that the throttle lever moves
G
smoothly.
Do not rev the engine to the point that
G
the clutch engages, otherwise the snow-
mobile could start moving, which could
cause an accident.
1.
Start the engine.
NOTE:
Refer to the "Starting the engine" section on
page 28.
2.
Hold the pivot point of the throttle lever
away from the throttle switch by putting
your thumb (above) and forefinger (be-
low) between the throttle lever pivot and
the engine stop switch housing.
While holding the pivot point as described
above, press the throttle lever gradually.
44
1. Throttle lever pivot
2. Engine stop switch housing
3. Throttle lever
The T.O.R.S. will be activated and the
engine speed will be limited to less than
the clutch engagement speed. (See page
74 for the clutch engagement speed.)
EWS00361
WARNING
If the engine speed does not decrease to
less than the clutch engagement speed,
stop the engine by turning the main switch
to the off position and consult a Yamaha
dealer.
ESU12920
Checking the air filter
Always check that there is no snow under the
air filter element frame.
1.
Remove the shroud, the left side cover,
the right side cover, and the top cover.
(See page 40 for removal procedures.)
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