THERMOSTAT. Honda CBR125R

The Honda CBR125R is a lightweight and powerful motorcycle designed for both beginners and experienced riders. It features a liquid-cooled, single-cylinder engine with PGM-FI fuel injection, delivering reliable performance. The CBR125R also boasts a modern design with sleek bodywork and a comfortable riding position. This manual provides comprehensive service procedures, maintenance schedules, and troubleshooting information for the CBR125R, ensuring optimal performance and safety.

COOLING SYSTEM

Remove the reserve tank cap and fill the reserve tank to the "UPPER" level line.

Install the reserve tank cap.

Install the following:

– Single seat (page 2-4)

– Lower cowl (page 2-8)

CAP

THERMOSTAT

REMOVAL

Drain the coolant (page 6-7).

Lift and support the fuel tank (page 3-6).

Remove the bolts and thermostat housing cover.

"UPPER" LEVEL LINE

RESERVE TANK

COVER

Remove the thermostat from the thermostat housing.

BOLTS

THERMOSTAT

INSPECTION

Visually inspect the thermostat for damage.

Check for damage of the seal ring.

THERMOSTAT SEAL RING

6-8

Key Features

Liquid-cooled engine
PGM-FI fuel injection
Sleek design
Lightweight
Powerful
Comfortable riding position
Comprehensive service manual

Frequently Answers and Questions

What type of engine oil is recommended for the CBR125R?

Honda recommends using "4-stroke motorcycle oil" or an equivalent with API classification SG or higher and JASO T 903 standard: MA. The viscosity should be SAE 10W-30.