Yamaha YZF-R125 Service Manual: Checking the camshaft

Yamaha YZF-R125 Service Manual / Engine / Camshaft / Checking the camshaft

1. Check:

Camshaft lobes Blue discoloration/pitting/scratches
Replace the camshaft.

2. Measure:

Camshaft lobe dimensions "a" and "b" Out of specification Replace
the camshaft.

Checking the camshaft

3. Check:

Camshaft oil passage Obstruction Blow out with
compressed air.

Camshaft

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Checking the rocker arms and rocker arm shafts

The following procedure applies to all of the rocker arms and rocker arm shafts. 1. Check: Rocker arm Damage/wear Replace. 2. Check: Rocker arm shaft Blue discoloration/excessive wea ...

Other materials:

Engine specifications
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Multi-function display
Multi-function display Multi-function display "RESET/SELECT" button WARNING Be sure to stop the vehicle before making any setting changes to the multi-function display. Changing settings while riding can distract the operator and increase the risk of an accident. The multi- ...

Checking the timing chain and timing chain guide
1. Check: Timing chain Damage/stiffness Replace the timing chain and camshaft sprocket as a set. 2. Check: Timing chain guide (intake side) Damage/wear Replace. Checking the oil strainer 1. Check: Oil strainer Damage Replace. Contaminants Clean with solvent. ...