2008 Yamaha Motorsports Apex LTX Owners Manual - Page 53

2008 Yamaha Motorsports Apex LTX Manual

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Periodic maintenance 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.: G Make sure that the parking brake is applied. G Make sure that the throttle lever moves smoothly. G Do not rev the engine to the point that the clutch engages, otherwise the snowmobile could start moving, which could cause an accident. 1. Throttle lever pivot 2. Engine stop switch housing 3. Throttle lever 1. Start the engine. NOTE: Refer to the "Starting the engine" section on page 31. 2. Hold the pivot point of the throttle lever away from the throttle switch by putting your thumb (above) and forefinger (below) between the throttle lever pivot and the engine stop switch housing. While holding the pivot point as described above, press the throttle lever gradually. The T.O.R.S. will be activated and the engine speed will be limited to less than the clutch engagement speed. (See page 77 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. ESU11881 Checking the air filter Always check that there is no snow under the air filter element frame. 1. Remove the shroud. (See page 42 for removal procedures.) 2. Unhook the air filter case cover fasteners. 47

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Periodic maintenance
47
ESU11861
Checking the throttle override
system (T.O.R.S.)
Check the T.O.R.S. for proper operation.
WARNING
EWS00351
When checking the T.O.R.S.:
●
Make sure that the parking brake is ap-
plied.
●
Make sure that the throttle lever moves
smoothly.
●
Do not rev the engine to the point that
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 31.
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.
The T.O.R.S. will be activated and the
engine speed will be limited to less than
the clutch engagement speed. (See page
77 for the clutch engagement speed.)
WARNING
EWS00361
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.
ESU11881
Checking the air filter
Always check that there is no snow under the
air filter element frame.
1.
Remove the shroud. (See page 42 for re-
moval procedures.)
2.
Unhook the air filter case cover fasteners.
1.
Throttle lever pivot
2.
Engine stop switch housing
3.
Throttle lever