Yamaha SR10LE, Operator'S Manual

Page: 17 / 52

15
5. Pumping the brake lever is permissi-
ble; however, if pumping the brake
lever more than twice is necessary to
obtain the necessary stopping power,
immediately take the snowmobile to
an authorized Yamaha Snowmobile
dealer for service. If not under war-
ranty, this service is at the discretion
and expense of the snowmobile
owner.
6. When new brake pads are installed,
a “burnishing” process is required.
Emergency Stopping
There are several methods of stopping or
slowing the snowmobile under a variety
of situations. Identified in the following
chart are the ways a snowmobile may be
brought to a stop and the effectiveness
under normal conditions.
Throttle/Ignition
Monitor Switch
The throttle control is equipped with a
monitor switch for safety purposes which
will stop the engine when a loss of return
spring force occurs. If ice forms in the
throttle system or if there is some other
malfunction of the throttle system result-
ing in a loss of return spring force, the
monitor switch will stop the engine when
the throttle control lever is released.
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 throttle
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.
! WARNING
The brake lever lock is not a parking
brake and should not be applied for
periods exceeding 5 minutes. The
brake lever lock maintains the brake
lever in the compressed position and
maintains pressure against the brake
disc; however, after a period of time,
the pressure applied to the brake disc
may relax below the amount required
to hold the snowmobile stationary.
Item Function
Emergency Stop
Switch
interrupts ignition circuit
Throttle/Ignition
Monitor Switch
interrupts ignition circuit
Ignition Switch interrupts ignition circuit
Brake slows the drive system
! WARNING
If any malfunction of the throttle sys-
tem occurs (such as freezing in fluffy
snow) and the monitor switch does
not shut off the engine, press down
on the emergency stop switch IMME-
DIATELY to stop the engine. DO NOT
start the engine until the malfunction
in the throttle system has been
located and corrected.
! WARNING
If the throttle control lever does not
work properly, DO NOT ATTEMPT TO
START THE ENGINE.