17
If the snowmobile engine stops abruptly
when the throttle control lever is released
and the activation of the monitor switch
is suspected, use the following proce-
dure:
1. Rotate the ignition key to the OFF
position.
2. Remove ice and snow from the
throttle system and wait 5-10 min-
utes for the engine heat to thaw ice
from the throttle system.
3. Test the throttle control lever by
compressing and releasing it several
times. The lever MUST return to the
idle position quickly and completely.
NOTE: If the throttle control lever
operates properly and the engine
does not start, compress the throt-
tle lever slightly (approximately 1/8
throttle) and try starting the engine.
If the engine now starts and stops
when the throttle lever is released,
take the snowmobile to an autho-
rized Yamaha Snowmobile dealer
for service. If not under warranty,
this service is at the discretion and
expense of the snowmobile owner.
4. If the throttle control lever operates
properly, rotate the ignition key to
the RUN position and go through
normal starting procedures.
NOTE: If the throttle control lever
operates properly and the engine
does not start, a malfunctioning
monitor switch may be the prob-
lem. Take the snowmobile to an
authorized Yamaha Snowmobile
dealer for service. If not under war-
ranty, this service is at the discre-
tion and expense of the
snowmobile owner. However, if a
dire emergency exists wherein the
engine must be started, disconnect
the throttle monitor switch located
in the right-side handlebar control.
NOTE: If disconnection of the
throttle monitor switch is needed to
start the engine, take the snowmo-
bile to an authorized Yamaha
Snowmobile dealer for service as
soon as possible. If not under war-
ranty, this service is at the discre-
tion and expense of the
snowmobile owner.
NOTE: The monitor switch is now
bypassed. All other ignition/electri-
cal features (ignition switch, emer-
gency stop switch, headlight,
taillight, and brakelight) will oper-
ate properly.
WARNING
If any malfunction of the throttle
system occurs (such as freezing in
fluffy snow) and the monitor switch
does not shut off the engine, press
down on the emergency stop
switch IMMEDIATELY to stop the
engine. DO NOT start the engine
until the malfunction in the throttle
system has been located and cor-
rected.
WARNING
If the throttle control lever does not
work properly, DO NOT ATTEMPT
TO START THE ENGINE.
WARNING
Under no circumstances should
disconnection of the throttle control
wiring harness be used as a substi-
tute for the monitor switch during
normal operation of the snowmo-
bile. Personal injury and damage
could occur if the throttle system
malfunctions or if the operator is
unable to stop the engine in an
emergency. If the snowmobile must
be operated with a disconnected
throttle control wiring harness,
EXTREME CAUTION MUST BE
TAKEN. NEVER EXCEED 10 MPH
WITH THE THROTTLE CONTROL
WIRING HARNESS DISCON-
NECTED.
U8KCS1E0.book Page 17 Tuesday, May 16, 2017 5:42 PM
