ooracing.com how to set your Valve Clearance

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[totalutternutter]

where can i buy that tappet tool adjuster?

[ooracingtube]

@totalutternutter Hello You only need a 9mm ring spanner and a long nose pliers to do them, we stock the tool on our main site under the tool section.

[bikerboi85]

Hello. does anyone know if a leaky valve cover would create a vauum leak on the yx160? mine leaks a small amount of oil when hot from the exhaust valve cover under the motor and the motor isnt running properly

[ooracingtube]

@bikerboi85 No it won't cause a running problem, would advise fitting a new oring to stop the leak.

[ooracingtube]

Hello

The same as video .10 in .15 exhaust

[ooracingtube]

Hello

The cam runs at half engine speed so 360 degrees from fireing stroke its on the rocking strock where there will no clearnce.

So thats ok what you are seeing.

[totalutternutter]

@ooracingtube i've got the yx 160 9mm & 3mm when will it be back in stock?

[cypresshillave]

hi would you know the clearences for a yx 160 with 63mm piston thanks

[cvnappsable]

Very helpful

[chunkyfecalbreakfast]

So you adjust at TDC on the combustion stroke, if you then rotate 360 deg so you are at TDC again should the valves have the same clearance as before or should they be tight with no clearance? This is what is happening with my engine and I daren't start it because I'm not sure if this is right. if I rotate 360 again back to combustion stroke then the clearances are right again.