YZ450F 04' Air Filter box Melted

5 replies to this topic
  • cammo69

Posted January 25, 2011 - 08:35 PM


Hey guys, my 04 model YZ450F AIR FILTER BOX has all of a sudden started to melt on exhaust and is now starting to smoke, think it may catch fire soon. Needless to say i wont be riding ths weekend until i get a new box.
Question is has this happened to any body else or does any body know why this may have happened. i have an after market fmf power bomb pipe on and is does get verry hot.

  • ttr250dude

Posted January 26, 2011 - 12:49 AM


I've never heard of that but im sure it's happened to other people as well. Try using some heat reflective tape on your new airbox. Most hardware stores have it.

  • cammo69

Posted January 28, 2011 - 06:46 PM


thanks not a bad idea

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  • ttr250dude

Posted January 28, 2011 - 11:27 PM


I wouldnt cheap out on the heat reflective tape. The good stuff feels like real aluminum foil that is sticky on one side. The crappy stuff basically looks/feels like shiney tape.
Is the exhaust or airbox bent out of place?

  • cammo69

Posted January 29, 2011 - 09:47 PM


doesnt look like it. I havent dropped it and it just started to melt. i have taken the box out and it looks like it has been melting for awhile, but now it touching the exhaust. i have seen a few other posts of this model bike doing the same thing with after market pipes. cause they are a little fatter then normal i think this might have something to do with it. once i get new box i will definately try the tape a few other sites have suggested the same thing.

  • ttr250dude

Posted January 29, 2011 - 10:36 PM


:thumbsup: keep us updated

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