Yamaha YFM70RY Service Manual page 152

2. Install:
• Copper washers
• Brake hose
• Union bolt
Brake hose union bolt
27 Nm (2.7 m·kg, 19 ft·lb)
EWA13530
WARNING
Proper brake hose routing is essential to in-
sure safe vehicle operation. Refer to "CABLE
ROUTING" on page 2-41.
TIP
• While holding the brake hose, tighten the union
bolt as shown.
• Turn the handlebar to the left and right to make
sure the brake hose does not touch other parts
(e.g., wire harness, cables, leads). Correct if
necessary.
3. Fill:
• Brake master cylinder reservoir
(with the specified amount of the recom-
mended brake fluid)
Recommended fluid
DOT 4
EWA13540
WARNING
• Use only the designated brake fluid. Other
brake fluids may cause the rubber seals to
deteriorate, causing leakage and poor
brake performance.
• Refill with the same type of brake fluid that
is already in the system. Mixing brake fluids
may result in a harmful chemical reaction,
leading to poor brake performance.
New
• When refilling, be careful that water does
not enter the brake master cylinder reser-
voir. Water will significantly lower the boil-
ing point of the brake fluid and could cause
vapor lock.
ECA13540
NOTICE
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean up
any spilt brake fluid immediately.
4. Bleed:
• Brake system
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-24.
5. Check:
• Brake fluid level
Below the minimum level mark → Add the
recommended brake fluid to the proper level.
Refer to "CHECKING THE BRAKE FLUID
LEVEL" on page 3-21.
6. Check:
• Brake lever operation
Soft or spongy feeling → Bleed the brake sys-
tem.
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-24.
4-27
FRONT BRAKES