Yamaha YZF-R125 Service Manual: Cylinder head

Cylinder head


Cylinder head


* Yamaha bond No. 1215 (Three Bond No. 1215)

Installing the exhaust assembly
1. Install: Exhaust assembly "1" Exhaust pipe nuts "2" Exhaust assembly bolts "3" "4" NOTE: Do not fully tighten the nuts and bolts. 2. Tighten: Exhaust pipe nuts "2" Exhaust assem ...

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 compre ...

Other materials:

Adjusting the engine idling speed
The engine idling speed must be checked and, if necessary, adjusted as follows at the intervals specified in the periodic maintenance and lubrication chart. The engine should be warm before making this adjustment. Remove panel A. Check the engine idling speed and, if necessary, ...

Lubrication diagrams
Clutch push lever Main axle Drive axle Crankshaft Oil filter Oil pump assembly Oil strainer To cylinder head Camshaft Crankshaft Main axle Drive axle ...

Battery
A poorly maintained battery will corrode and discharge quickly. The electrolyte level, battery lead connections and breather hose routing should be checked before each ride and at the intervals specified in the periodic maintenance and lubrication chart. WARNING Electrolyte is pois ...

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