CROSSRUNNER 250 Manuel d'utilisateur télécharger pdf (Page 172)

Must install the long pitch end of all valve

spring upward.

2)Check the valve seal

If there is leakage on the valve face, repair

again and regrind or replace the valve and

regrind.

Inspecting procedure of valve seal

.Inject the clean solvent

¢Ùinto intake way and

exhaust way respectively.

.Check the valve seal. There should be no leak-

age on valve race

¢Ú.

3)Regrinding procedure

.Remove components of the cylinder cover

again

.Grind repeatedly with fine grinding powder.

.Clean totally

.Reassemble and check the leakage with sol-

vent

.Repeat above procedures until getting ideal

seal

7.Distribution cam

1)Check

.Distribution cam

Replace if there is cave, scratch or discolora-

tion

2)Measure

.Distribution cam(use micrometer)

Unqualified¡úReplace

Caution

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CROSSRUNNER 250 Manuel d'utilisateur Page 172