YZ450F oil in airbox

2 replies to this topic
  • Montana-Snipe

Posted April 23, 2011 - 01:15 PM


any ideas what could possibly lead to this, I was thinking of valve guide seals, bad rings or valve seats?

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  • Mr. Neutron

Posted April 23, 2011 - 01:52 PM


Hey, CRF450XNut!!!

What year is your 450? Is your crankcase breather routed back to the airbox? Would there be any chance that maybe you over-oiled your air filter (is the oil in the box the same color as your air filter oil?)?


  • yz450fcranker

Posted April 23, 2011 - 02:17 PM


how much oil is in there a quart? or just a few drops to ask why

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