6-3ESU00087Throttle leverCheck the throttle lever operation before starting theengine.The throttle lever must open smoothly and spring back toits home position when released.ESU00088Recoil starterCheck the recoil starter for proper operation and therecoil starter rope for damage.ESU00090Throttle override system (T.O.R.S.)Check the T.O.R.S. for proper operation.WARNING@When checking T.O.R.S.: Make sure that the parking brake is applied. Make sure that the throttle lever moves smoothly. Do not run the engine up to clutch engagementr/min. Otherwise, the snowmobile could startmoving forward unexpectedly, which could causean accident.@1. Start the engine.NOTE:@Refer to the “Starting the engine” section.@2. Hold the pivot point of the throttle lever away from thethrottle switch by putting your thumb (above) andforefinger (below) between the throttle lever pivot 1and the engine stop switch housing 2.While holding the pivot point as described above,press the throttle lever 3 gradually.The T.O.R.S. will operate and the engine should runbetween 2,800 and 3,000 r/min.WARNING@If the engine does not run between 2,800 and3,000 r/min, stop the engine by turning the mainswitch to the “OFF” position and consult a Yamahadealer.@