HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
450GN

2008 Problems

9 posts in this topic

my friend has a 2008 yz450f that he has recently overfilled with out by about 2 quarts... now the bike will not stop smoking...

any ideas on what happened?

and does the 2008 get a new clutch part number or is it the same clutch as the 2007s? ive tried local stores and nobody knows

Share this post


Link to post
Share on other sites

He overfilled it by 2 quarts:eek: ? Prolly blew some rings if thats the case...

Share this post


Link to post
Share on other sites

It's easy. You put a quart in, and it doesn't show on the dip stick because you didn't run the engine, so you put in another one, and so on.

When you do that to an engine, then run it, so much oil is thrown on the cylinder that the rings are overwhelmed. In addition, because there is so much oil in th eengine, it doesn't drain back from the top end correctly, either, and the valve seals are also overwhelmed. So now, he has pumped his entire exhaust system full of oil (it's oily at the tail pipe, isn't it?), and it will take some time to clear out completely. But it should, and the engine is more than likely just fine.

Share this post


Link to post
Share on other sites

yeah he had oil on the tail pipe just slightly...

he didnt know about the oil drain on the lower left side of the engine and overfilled... he is not mechanically inclined..

so would you go and redo the rings or should they clear up fine?

Share this post


Link to post
Share on other sites

Just get the oil level corrected and run it. It should clear out in about an hour.

Share this post


Link to post
Share on other sites

no harm to the engine for sure, just like the guys said, get the level back right and rip. The packing will eventually dry out as well.

Share this post


Link to post
Share on other sites

thanks for the help everyone

the exhaust still smokes slightly but it has minimized greatly

he has now developed a bog when coming off idle he says but glad to hear that there is no permanent or severe damage...

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0