Checking The Brake Fluid Level - Yamaha AEROX YQ50 Owner's Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
Rear brake pads
ZAUM0278
1. Lining thickness
Check each rear brake pad for damage
and measure the lining thickness. If a
brake pad is damaged or if the lining
6
thickness is less than 2 mm (0.08 in),
have a Yamaha dealer replace the
brake pads as a set.
EAU22500

Checking the brake fluid level

1
1
ZAUM0280
1. Minimum level mark
Insufficient brake fluid may allow air to
enter the brake system, possibly caus-
ing it to become ineffective.
Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake fluid
level may indicate worn brake pads
and/or brake system leakage. If the
brake fluid level is low, be sure to check
the brake pads for wear and the brake
system for leakage.
Observe these precautions:
G When checking the fluid level,
make sure that the top of the brake
fluid reservoir is level.
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1
6-15
G
Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.
Recommended brake fluid:
DOT 4
G
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.
G Be careful that water does not en-
ter the brake fluid reservoir when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.
G
Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled
immediately.
G
As the brake pads wear, it is nor-
mal for the brake fluid level to grad-
ually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
fluid