Yamaha YZF-R125 Service Manual: Checking the brake fluid level

Yamaha YZF-R125 Service Manual / Periodic checks and adjustments / Chassis / Checking the brake fluid level

1. Stand the vehicle on a level surface.

NOTE:

Place the vehicle on a suitable stand.
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.

Checking the brake fluid level

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 fluid reservoir. Water will significantly lower the boiling point of the brake fluid and could cause vapor lock.

CAUTION:

Brake fluid may damage painted surfaces and plastic parts. Therefore, always clean up any spilt brake fluid immediately.

NOTE:

In order to ensure a correct reading of the brake fluid level, make sure the top of the brake fluid reservoir is horizontal.

Adjusting the rear disc brake

1. Check: Brake pedal position (distance "a" from the center of the rider footrest to the center of the brake pedal) Out of specification Adjust. 2. Adjust: Brake pedal position ...

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 ...

Other materials:

Intake air temperature sensor
1. Check: Intake air temperature sensor resistance Out of specification Replace the throttle body. a. Connect the pocket tester ( × 1k) to the throttle body sensor assembly coupler as shown. Positive tester probe brown/white "1" Negative tester probe gray/black ...

Checking and charging the battery
WARNINGBatteries generate explosive hydrogen gas and contain electrolyte which is made of poisonous and highly caustic sulfuric acid. Therefore, always follow these preventive measures: Wear protective eye gear when handling or working near batteries. Charge batt ...

Checking the shift shaft
1. Check: Shift shaft Bends/damage/wear Replace. Shift shaft spring Damage/wear Replace. Checking the stopper lever 1. Check: Stopper lever Bends/damage Replace. Roller turns roughly Replace the stopper lever. Stopper lever spring Damage/wear Replace. ...