450 surging/cutting out

i have a yz450 that "cuts out" in top gear under WOT. has anyone heard of this?

Does it only cut out at WOT in top gear, or any gear? Without knowing more details, it could be electrical, fuel/jetting related etc..... Maybe something simple like a filthy air filter??? Post more info', and i'll try and help a bit more:thumbsup:

I had the same problem with my 03! I had a partially blocked jet. Cleaned her out and was good as new!

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