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
09speeddemon

2001 yz426 valve cover

4 posts in this topic

Ok guys i have a 2001 yz426 Today i took it for the very first ride since i bought the bike. Well today i noticed there was oil leaking out of the valve cover vent tube why is this??? The bike is not running hot and the bike runs very strong.

Share this post


Link to post
Share on other sites

The big 12mm tube that runs down the frame? That would be somewhat normal if you mean that there's a drip or two coming from that, especially when you run it hard. It's the crankcase breather. Things that could result in an excess of oil expelled would be a fairly gross oil overfill or weak rings.

Share this post


Link to post
Share on other sites

When I first got my 426 I took it out to ck the oil while it was cold and thought it needed it some. Added a full qt. before it read on the stick. Found out that I read it wrong. Warm it up first then check oil after you shut it down:bonk:

Share this post


Link to post
Share on other sites

I noticed it was leaking quit a bit ( it looks like a lot to me) every time we would stop riding and take a break for 5 mins i would see about 3-6 drops and a little oil on the frame.

Thanx for the help

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