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Periodic maintenance and adjustment
54
5. Install the rubber cap.
ESU11840
Adjusting the throttle cable free
play (PZ50 / PZ50RT / PZ50GT /
PZ50MT)
1. Loosen the locknut.
2. Turn the adjusting bolt in or out until the
proper throttle cable free play is
achieved.
3. Tighten the locknut.
ESU11850
Checking the throttle cable free
play (PZ50VT)
Check the throttle cable free play.
Have a Yamaha dealer adjust the free play if
necessary.
ESU11862
Checking the throttle override
system (T.O.R.S.)
Check the T.O.R.S. for proper operation.
WARNING
EWS00352
When checking the T.O.R.S., take precau-
tions to avoid snowmobile movement
which could cause an accident:
● Make sure that the throttle lever moves
smoothly with the engine off before
checking the T.O.R.S.
● Make sure that the parking brake is ap-
plied.
● Do not rev the engine to the point that
the clutch engages.
1. Start the engine.
TIP
Refer to the “Starting the engine” section on
page 36.
1. Idle adjusting screw
Standard engine idling speed:
1700–1900 r/min
1. Locknut
2. Throttle cable free play adjusting bolt
3. Throttle cable free play
Throttle cable free play:
2.0–3.0 mm (0.08–0.12 in)
Throttle cable free play:
2.0–3.0 mm (0.08–0.12 in)
U8GK12E0.book Page 54 Monday, May 19, 2008 11:17 AM