Periodic maintenance
4.
Insert a Phillips screwdriver into the hole,
and then turn the idle adjusting screw in
or out to adjust the engine idling speed.
1. Idle adjusting screw
Standard engine idling speed:
1700–1900 r/min
5.
Install the rubber cap.
ESU11840
Adjusting the throttle cable free
play (PZ50RT / PZ50GT /
PZ50MT)
1.
Loosen the locknut.
2.
Turn the adjusting bolt in or out until the
proper
throttle
achieved.
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)
50
cable
free
play
3.
Tighten the locknut.
ESU11850
Checking the throttle cable free
play (PZ50VT)
Check the throttle cable free play.
Throttle cable free play:
2.0–3.0 mm (0.08–0.12 in)
Have a Yamaha dealer adjust the free play if
necessary.
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.:
Make sure that the parking brake is ap-
G
plied.
Make sure that the throttle lever moves
G
smoothly.
Do not rev the engine to the point that
G
the clutch engages, otherwise the snow-
mobile could start moving, which could
cause an accident.
is
1.
Start the engine.
NOTE:
Refer to the "Starting the engine" section on
page 33.