Yamaha RST90K Owner's Manual download pdf (Page 38)

6-5

ESU00087

Throttle lever

Check the throttle lever operation before starting the

engine.

The throttle lever must open smoothly and spring back to

its home position when released.

ESU00090

Throttle 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 engagement

r/min. Otherwise, the snowmobile could start

moving forward unexpectedly, which could cause

an accident.

1. Start the engine.

NOTE:

Refer to the “Starting the engine” section.

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 operate and the engine should run

between 2,800 and 3,000 r/min.

WARNING

If the engine does not run between 2,800 and

3,000 r/min, stop the engine by turning the main switch

to the “OFF” position and consult a Yamaha dealer.

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Yamaha RST90K Owner's Manual Page 38