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clutchless

Why you change your oil every 10 Hours.

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Tore down my 07 450 yesterday. Pretty pleased with how things looks. Over 200 hours in the desert, dunes, tracks and 3 races.

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Looking good....looks like 95% of the yamahas that have that many hours.

You didn't use that brush on the valves did you? I know it's just the bottom of them but it looks like you scrapped off all the hard coating....yikes

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Looking good....looks like 95% of the yamahas that have that many hours.

You didn't use that brush on the valves did you? I know it's just the bottom of them but it looks like you scrapped off all the hard coating....yikes

Sea Foam soak and a clean rag. Knocked off some of the large chunks of carbon on the cylinder head with the brush. I'm not sure if i am going to replace them yet. they passed the "liquid test" and nothing is seeping past them so they are still creating a good seal.

Pic before the Sea Foam soak.

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Edited by CLUTCHLESS

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I know it's just the bottom of them but it looks like you scrapped off all the hard coating....yikes
They're not hard coated on the combustion chamber side. There's no reason for it.

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for me its overkill

oil every hour, i ride like 3 hours a ride, so thats mean i have to change it 3 times while riding,

i stretch mine sometimes to 15 hours, but i never hit the rev limiter

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3 to 8 depend in the condition and the place work fine for me.

in the dunes any oil will loss its qualitys alot faster then when trail riding.

its depend in the way you ride and your terrain!

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Air filter can not be changed TOO MUCH. This is the most important part of maintenance. I run very high quality Motorex oil but still change it about every 4 rides. My buddies tha run motorex change theres out every 7-10 hours. Oil filter gets changed with oil. For me tho Air filter is swapped out every ride no matter what. Its impossible to do "too much" maintenance on a race bike.

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