blow buy

I just bought a yz 450f and I was wondering how much air should be coming out of the air vent tube?

They blow out a lot of air, don't worry. Now, if your header glows red.... :thumbsup:

Close to 450cc of air at a low idle. Then it should get sucked back in. The piston pushes the same amount of air out from under it as it does on top.

Thanks that had me worried. How do I check my oil? and were is a good place to get a repair manual?

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