Yamaha YZF-R125 Owners Manual: Brake pedal

Brake lever

Brake lever Brake lever The brake lever is located at the right handlebar grip. To apply the front brake, pull the lever toward the handlebar grip. ...

Fuel tank cap

Fuel tank cap Fuel tank cap lock cover Unlock. To remove the fuel tank cap Open the fuel tank cap lock cover. Insert the key into the lock and turn it 1/4 turn counterclockwise. ...

Other materials:

Checking the camshaft sprocket and timing chain guide
1. Check: Camshaft sprocket More than 1/4 tooth wear "a" Replace the camshaft sprocket, timing chain and crankshaft as a set. a. 1/4 tooth b. Correct 1. Timing chain roller 2. Camshaft sprocket 2. Check: Timing chain guide (exhaust side) Damage/wear Replace. ...

Assembling the main axle and drive axle
1. Install: Toothed washer "1" Circlip "2" NOTE: Be sure to install the circlip so that its sharp edge "a" is facing away from the toothed washer and gear. Be sure the circlip ends "b" are positioned at the axle spline groove "c". 2. Install: 2nd pinion gear "1" NO ...

Changing the engine oil
1. Remove: Right bottom cowling Right upper side cowling Right lower side cowling Refer to "GENERAL CHASSIS" on page 4-1. 2. Start the engine, warm it up for several minutes, and then turn it off. 3. Place a container under the engine oil drain bolt. 4. Install: Engine oil d ...