2009 Yamaha Motorsports Apex LTX Owners Manual - Page 54
2009 Yamaha Motorsports Apex LTX Manual
Page 54 highlights
Periodic maintenance and adjustment ESU11862 Checking the throttle override system (T.O.R.S.) Check the T.O.R.S. for proper operation. EWS00352 WARNING When checking the T.O.R.S., take precautions to avoid snowmobile movement which could cause an accident: G Make sure that the throttle lever moves smoothly with the engine off before checking the T.O.R.S. G Make sure that the parking brake is applied. G Do not rev the engine to the point that the clutch engages. 1. Throttle lever pivot 2. Engine stop switch housing 3. Throttle lever 1. Start the engine. TIP 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 79 for the clutch engagement speed.) 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. Operating the snowmobile with a malfunctioning T.O.R.S. could result in loss of control. [EWS00362] ESU11882 Checking the air filter Always check that there is no snow under the air filter element frame. 1. Remove the shroud. (See page 43 for removal procedures.) 2. Unhook the air filter case cover fasteners. 48