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Operation
48
ESU13500
Read the Owner’s Manual carefully to be-
come familiar with all controls. If there is a
control or function you do not understand, ask
your Yamaha dealer.
WARNING
EWS00201
Failure to familiarize yourself with the con-
trols can lead to loss of control, which
could cause an accident or injury.
ESU13212
TIP
This model is equipped with:
● RS90GT / RS90LTGT / RST90GT: an en-
gine oil pressure switch to stop the engine
in case an engine oil pressure drop is de-
tected. To start the engine after this system
has stopped the engine, be sure to place
the snowmobile on a level surface, and
then turn the key in the main switch to the
off position, and then to the on position.
Failing to do so will prevent the engine from
starting even though the engine will crank
when turning the key to the start position. If
the engine does not start or if it stops again,
ask a Yamaha dealer to inspect the snow-
mobile.
● an engine overheating prevention system,
which prevents overheating when the en-
gine is idling. When the engine has been
idling for 3 minutes or longer and the cool-
ant temperature has risen above 100 °C
(212 °F), the engine automatically stops to
prevent overheating. The engine can be
started after it stops.
ESU13970
Starting the engine
RS90GT / RS90LTGT / RST90GT
1. Apply the parking brake.
2. Be sure the engine stop switch is in the
run position. The starter motor cannot be
operated when the engine stop switch is
in the off position.
3. Turn the main switch to the start position
and release it when the engine starts.
NOTICE: Release the switch immedi-
ately after the engine starts. If the en-
gine fails to start, release the switch,
wait a few seconds, then try again.
Each attempt should be as short as
possible to preserve the battery. Do
not crank the engine more than 10
seconds on any one attempt.
[ECS00331]
1. Run position
2. Off position
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U8JA11E0.book Page 48 Monday, June 14, 2010 10:22 AM