Burnishing Brake Pads - Yamaha SXV4NP Operator's Manual

1. Remove the brake fluid reservoir cover;
then remove most of the brake fluid
from the reservoir. Install the cover.
CAUTION
Brake fluid is highly corrosive. Do not
spill brake fluid on any surface of the
snowmobile.

NOTE: The above procedure will
allow room for the fluid from the cali-
per when the pistons are pushed
into the caliper for installing new
brake pads. Replacing the cover will
prevent fluid spillage.
2. Open the left-side access panel.
3. Remove the
securing 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. Remove the brake pads 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.
Torx-head screws
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0755-099
7. Install both brake pads into the cali-
per; then install the hairpin clip into
the caliper assembly.
8. Remove the reservoir cover and
remove the remaining fluid; then fill
the reservoir with fresh fluid and
install the cover.
9. Pump the brake lever to ensure cor-
rect positioning of the brake pads and
proper brake lever travel; then release.

NOTE: If brake lever travel is not
within specification, bleed the brake
system.
10. Remove the reservoir cover and fill
the reservoir (if necessary) to the
proper level with fresh brake fluid;
then install the cover.
11. Secure the brake shield; then close and
secure the left-side access panel.

NOTE: When new brake pads are
installed, a "burnishing" process is
required (see Burnishing Brake Pads
sub-section).

Burnishing Brake Pads

After changing brake pads, the new brake
pads must be burnished to achieve full
braking effectiveness. Braking distance
will be extended until brake pads are
properly burnished.
To properly burnish the brakes, use the
following procedure:
1. Choose an area sufficiently large to
safely accelerate to 48-64 km/h (30-
40 mph) and to brake to a stop.
! WARNING
If this procedure is done using a
shielded jack stand, be sure the oper-
ator is wearing the tether in case the
snowmobile falls from the stand.
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