kxr maxxer 250 300 Werkstatthandbuch : Seite 94

Microfiches
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Seite 92

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Seite 93

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Seite 95

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Seite 96

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          7. CYLINDER HEAD/VALVES                                                        ATV 300/250

                                                   Camshaft Holder
 CAMSHAFT HOLDER INSPECTION
 Inspect the camshaft holder for wear or
 damage.

 Inspect the rocker arm shaft for blue
 discoloration or grooves.
 If any defects are found, replace the rocker
 arm shaft with a new one, then inspect
 lubrication system.

                                                                  Rocker Arm Shafts

                                                                             Rocker Arm Bore

 Inspect the rocker arm bore, cam lobe
 contact surface and adjuster surface for
 wear/pitting/scratches/blue discoloration.
 If any defects are found, replace the rocker
 arm shaft with a new one, then inspect
 lubrication system.



                                                Contact Surface       Adjuster Surface


 Measure each rocker arm shaft O.D.
 Measure the I.D. of each valve rocker arm.
 Measure arm to shaft clearance.
 Replace as a set if out of specification.

 Service limits: 0.1 mm (0.004 in)




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