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
kevinparsons

WR426 Throttle Stop Question

5 posts in this topic

I just tried to do the free mods to my '02 WR426F and I just got the throttle stop bolt out. Apparently the dealer had already cut it off. However, they cut it off all the way down to the threads. All of the links that I have checked out to make these mods tell me that I need to leave 20 mm on the stem. I am just curious about whether this matters, and if there are any affects of having it so short.

Share this post


Link to post
Share on other sites

Yes it screws up the TPS (Throttle Position Sensor) and makes the performance erratic at high revs. On older models you may also ultimatley have a problem with the carb slide cracking due to over lifting and interference with the carb at the top.

Share this post


Link to post
Share on other sites

Mine was cut as well on my 02' WR426. You should be fine. I have no problems with mine..................db :)

Share this post


Link to post
Share on other sites

You might want to make sure that when you open the throttle, with the cut throttle stop in, that the slide doesn't go any farther than flush with the carb throat. Better safe than sorry.

Share this post


Link to post
Share on other sites

kevinparsons

Did you come into South Valley Motorsports (Yamaha Dealership in Draper) on Friday?? If so, I helped you at the parts counter. If not, no big deal. Just wanted to say HELLO............db :)

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