Yamaha YZF-R125 Service Manual: Clutch

Assembling the starter motor

1. Install: Starter motor front cover/brush holder set "1" Starter motor yoke "2" NOTE: Align the marks "a" on the starter motor yoke and starter motor front cover/brush holder set. ...

Removing the clutch

1. Straighten the lock washer tab. 2. Loosen: Clutch boss nut "1" NOTE: While holding the clutch boss "2" with the universal clutch holder "3", loosen the clutch boss nut. ...

Other materials:

Checking the clutch boss
1. Check: Clutch boss splines Damage/pitting/wear Replace the clutch boss. NOTE: Pitting on the clutch boss splines will cause erratic clutch operation. Checking the pressure plate 1. Check: Pressure plate Cracks/damage Replace. Checking the clutch push lever and short clutch push ...

Bearings and oil seals
Install bearings "1" and oil seals "2" so that the manufacturer's marks or numbers are visible. When installing oil seals "1", lubricate the oil seal lips with a light coat of lithium-soap-based grease. Oil bearings liberally when installing, if appropriate. CAUTION:Do not spin th ...

Removing the cylinder head
1. Align: "I" mark "a" on the generator rotor (with the stationary pointer "b" on the generator cover) a. Turn the crankshaft counterclockwise. b. When the piston is at TDC on the compression stroke, align the "I" mark "c" on the camshaft sprocket with the mark "d" on the cylinder h ...