30
2. Slide a piece of flexible tubing over
the ball of the bleeder valve and
direct the other end into a container.
XM145A
3. Slowly compress the brake lever
until maximum pressure is attained;
then hold the lever in the com-
pressed position to maintain pres-
sure. Open the bleeder valve to
release the fluid and air. When the
fluid stops, close the bleeder valve;
then release the brake lever.
4. Repeat step 3 until the brake fluid
flows free of air bubbles.
NOTE: It may be necessary to
refill the reservoir during the bleed-
ing process. Never allow the brake
fluid to go below the low brake
fluid mark in the reservoir.
5. When the brake fluid is free of all air
and the brake lever feels firm when
compressed, fill the reservoir to the
high brake fluid mark; then install and
secure the cover. Remove the tube
from the bleeder valve.
Checking/Changing Brake Pads
The condition of the brake pads must be
checked daily and changed if worn or
damaged. To check and change the brake
pads, use the following procedure:
NOTE: The brake pads may be
changed by the snowmobile owner
if qualified to do so. If the owner
does not feel qualified, take the
snowmobile to an authorized
Yamaha Snowmobile dealer for this
service. This service is at the dis-
cretion and expense of the snow-
mobile owner.
NOTE: When installing new brake
pads, always install them as a set.
Never install just one pad or use
brake pads which have been used
in another snowmobile.
1. Remove the brake fluid reservoir
cover; then remove most of the
brake fluid from the reservoir. Install
the cover.
NOTE: The above procedure will
allow room for the fluid from the
caliper when the pistons are
pushed into the caliper for install-
ing new brake pads. Replacing the
cover will prevent fluid spillage.
2. Open the left-side access panel.
3. Remove the torx-head screws secur-
ing the brake shield to the belt guard
mount; then remove the cap screws
securing the brake shield to the
brake caliper.
4. Carefully move the shield out of the
way; then remove the hairpin clip
securing the brake pads to the cali-
per assembly.
5. Using a pair of pliers, pull the outer
brake pad out of the caliper assembly.
PC013
NOTE: Changing one pad at a
time will prevent one piston from
pushing out the other piston from
the caliper.
6. Measure the thickness of the brake pad.
The brake pad thickness must be greater
than 1.0 mm (0.04 in.). If the brake pad
thickness is less than specified, replace-
ment of both pads is necessary.
CAUTION
Brake fluid is highly corrosive. Do
not spill brake fluid on any surface
of the snowmobile.
U8KCS1E0.book Page 30 Tuesday, May 16, 2017 5:42 PM
