Over filled the oil!

7 replies to this topic
  • captain caveman

Posted April 26, 2011 - 01:45 AM


A Friend of mine has a 08 alloy framed wr 450 while out the weekend it started smoking quite a bit.

to cut a long story short we got it home and found he had put about 250/300mil to much oil in it :thumbsup:

He,s drained the oil to the correct level but its still smoking, whats the likely damage?

cheers guys

Edited by captain caveman, April 29, 2011 - 07:19 AM.

  • grayracer513

Posted April 26, 2011 - 06:54 AM


None, other than the muffler packing is probably oily, and it may have barfed into the air boot/air box quite a bit.

  • captain caveman

Posted April 26, 2011 - 12:46 PM


ok cheers that should put his mind to rest.

  • 12bruckd

Posted April 26, 2011 - 12:52 PM


he could have blown some gaskets but those are cheap but a little time consuming to replace (taking the head off and cylinder etc)

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted April 26, 2011 - 02:51 PM


he could have blown some gaskets ...

Really? How?

  • captain caveman

Posted April 29, 2011 - 07:19 AM


Update the bike is still smoking and the compresion seems down also the e/start no longer starts the engine it just turns it over.

Im guessing maybe the rings are not sealing or maybe the bores have glased over?

does this sound right? if so it there anything that can be done or does is it a strip down job?

  • wanawakeboard

Posted April 29, 2011 - 09:34 AM


I doubt the extra oil has anything to do with the smoking of the bike, extra oil usually just gets puked into the airbox.
look inside the airbox and see if the filter is soaked in oil, its possible the carb is sucking oil that got in the airbox... good luck..

  • grayracer513

Posted April 29, 2011 - 10:24 AM


It will take a LONG time to get it all out of the muffler packing, too.

Doesn't account for the lack of compression, but the only thing that would do that and really could have been caused by overfilling is an excess of carbon gunk on the backs of the valves. Still, a tear down might be the only way to get rid of that.


Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.