LEFT CRANKCASE COVER. 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.

ALTERNATOR/STARTER CLUTCH

LEFT CRANKCASE COVER

REMOVAL

Remove the lower cowl (page 2-8).

Remove the bolts and drive sprocket cover.

COVER BOLTS

Disconnect the alternator/CKP sensor 6P (Natural) connector.

Release the alternator/CKP sensor wire from the clamp.

6P (NATURAL) CONNECTOR

CLAMP

The left crankcase cover (stater) is magnetically attracted to the flywheel, be careful during removal.

Loosen the left crankcase cover bolts in a crisscross pattern in 2 or 3 steps and remove the bolts, washer and left crankcase cover.

BOLT/WASHER

Remove the dowel pins and gasket.

BOLTS

GASKET

COVER

DOWEL PINS

11-4

Be careful not to damage the mating surfaces.

INSTALLATION

Clean any gasket material from the mating surfaces of the right crankcase and cover.

Install the dowel pins and new gasket.

ALTERNATOR/STARTER CLUTCH

GASKET

DOWEL PINS

The left crankcase cover (stater) is magnetically attracted to the flywheel, be careful during installation.

Install the left crankcase cover, bolts and washer.

Tighten the bolts in a crisscross pattern in 2 or 3 steps.

BOLT/WASHER

Route the wire

properly (page 1-

18).

Connect the alternator/CKP sensor 6P (Natural) connector.

Install the alternator/CKP sensor wire to the clamp.

BOLTS COVER

6P (NATURAL) CONNECTOR

CLAMP

Install the bolts and drive sprocket cover.

Install the lower cowl (page 2-8).

COVER BOLTS

11-5

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.