Periodic maintenance and adjustment
67
The T.O.R.S. will be activated and the
engine speed will be limited to less than
the clutch engagement speed. (See page
94 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 mal-
functioning T.O.R.S. could result in
loss of control.
[EWS00362]
ESU11894
Checking the air filter
Check that there is no snow under the air filter
element frame after each ride. In addition,
snow may need to be cleaned during a ride
depending on the riding conditions.
1.
Place the snowmobile on a level surface
and apply the parking brake.
2.
Remove the front cover (PZ50RT /
PZ50GT / PZ50MT) or open the shroud
(PZ50VT / PZ50MP), and then remove
the air filter case cover. (See page 60 for
the procedures.)
3.
Unhook the air filter element frame fas-
teners.
4.
Lift up the air filter element frame and
check the air filter element. If there is any
snow on the air filter element, remove the
element and brush off the snow, and then
install the air filter element.
5.
Place the air filter element frame in the
original position, and then hook the fas-
teners onto the frame.
6.
Install the air filter case cover, and then
install the front cover (PZ50RT /
PZ50GT / PZ50MT) or close the shroud
(PZ50VT / PZ50MP).
1. Throttle lever pivot
2. Engine stop switch housing
3. Throttle lever
1. Air filter element frame fastener
1
U8GKS6E0.book Page 67 Tuesday, April 17, 2012 8:48 AM
