Yamaha XMAX YP125R - Service manual > Checking the brake fluid level
1. Stand the vehicle on a level surface.
TIP
- Place the vehicle on the centerstand.
- Make sure the vehicle is upright.
2. Check:
- Brake fluid level
Below the minimum level mark "a" → Add the recommended brake fluid to the proper level.
Front brake
Recommended fluid DOT 4
Rear brake
Recommended fluid DOT 4
A. Front brake
B. Rear brake
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.
- When refilling, be careful that water does not enter the brake master cylinder reservoir.
Water will significantly lower the boiling point of the brake fluid and could cause vapor lock.
NOTICE
Brake fluid may damage painted surfaces and plastic parts. Therefore, always clean up any spilt brake fluid immediately.
TIP
In order to ensure a correct reading of the brake fluid level, make sure the top of the brake fluid reservoir is horizontal.
Checking the front brake pads
The following procedure applies to all of the brake pads.
1. Operate the brake.
2. Check:
- Front brake pad
Wear indicator grooves "a" have almost disappeared → Replace the brake pads as a set.
Checking the rear brake pads (YP125R)
The following procedure applies to all of the brake pads.
1. Operate the brake.
2. Check:
- Rear brake pad Wear limit "a" reached → Replace the brake pads as a set.
Limit 0.8 mm (0.03 in)
Checking the rear brake pads (YP250R)
The following procedure applies to all of the brake pads.
1. Operate the brake.
2. Check:
- Rear brake pad
Wear indicator groove "a" has almost disappeared → Replace the brake pads as a set.
Checking the front brake hose
1. Check:
- Brake hose "1"
Cracks/damage/wear → Replace.
2. Hold the vehicle upright and apply the front brake several times.
3. Check:
- Brake hose
Brake fluid leakage → Replace the damaged hose.
Checking the rear brake hose
1. Check:
- Brake hose "1"
Cracks/damage/wear → Replace.
2. Check:
- Brake hose holder "2"
Loose connection → Connect.
A. YP125R
B. YP250R
3. Hold the vehicle upright and apply the rear brake several times.
4. Check:
- Brake hose
Brake fluid leakage → Replace the damaged hose.
See also:
Yamaha XMAX YP125R - Service manual > Bleeding the hydraulic brake system
WARNING Bleed the hydraulic brake system whenever: The system is disassembled. A brake hose is loosened, disconnected or replaced. The brake fluid level is very low. The brake operation is faulty.