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
benjar

Fuel leaking from carb

9 posts in this topic

I have a 2000 WR400 that is leaking fuel from the brass inlet piece on the left side of the carb. I tried to replace the O-rings inside but can't find any that fit.

The local Yamaha dealership's schematic doesn't show the o-rings so I don't what to order. Does anyone know where I can find o-rings to replace the worn ones on the brass inlet piece?

ImageUploadedByThumper Talk1407892256.992361.jpgImageUploadedByThumper Talk1407892277.493766.jpg

Share this post


Link to post
Share on other sites

Take the inlet and the oring to a 'real' hardware store that carries all the oring sizes.

Don't use plumbing orings, as some are real rubber, which you do not want.

Share this post


Link to post
Share on other sites

While riding my '06 down in Baja, mine started leaking, so I wrapped Teflon thread tape around it, and it sealed right up.

1 person likes this

Share this post


Link to post
Share on other sites

Thanks for the help. I think I'm going to try the local hardware store or automotive store. If that doesn't work I may need to get creative.

Share this post


Link to post
Share on other sites

Like they said, try to find a fatter ring that will not melt when gas hits it.

I would also put a dab of Yamabond on it when you install it. Can't hurt.

That stuff is great. I havn't used regular RTV for anything in years.

Share this post


Link to post
Share on other sites

My 2002 WR426 did the same thing and I was referred to this company by a local KTM dealer.

 

Sudco International

 

www.sudco.com

 

They have any and all parts for your carb.

 

The O-Rings are an oddball size and cannot be found in hardware stores.

Sealant of any kind won't work as a permanent fix because the fitting is designed to rotate.

 

Hope this helps.

Share this post


Link to post
Share on other sites

Your yamaha dealer can order them if they don't have them

 

Any motorcycle dealer that sells dirtbikes can order them as all dirtbikes till 2011 used the FCR carb.

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