Throttle Stop Length???
Posted October 31, 2002 - 03:35 PM
Anyone think I'm on the right track?
Posted October 31, 2002 - 04:09 PM
Posted October 31, 2002 - 06:09 PM
Anyone actually have any problems removing the stop? I've seen where people warn others of having it removed. Some have with no problems. But I haven't read anything about actually having a problem because the removed it.
Posted October 31, 2002 - 07:06 PM
Instead, I would take the carb completely off the bike, remove the throttle stop and cut/grind/beltsand the stop so that the slide just barely clears the throat of the carburetor when it hits the throttle stop. It’s a trial and error method, careful not to grind off too much. A drop of red loctite on the throttle stop threads is a good idea when finished.
If you don’t want to do all that, you could just order a YZ throttle stop, should be the right length and you might be able to change it without taking the carb off.
Posted November 01, 2002 - 12:56 PM
Posted November 01, 2002 - 03:56 PM
Posted November 04, 2002 - 10:51 AM
I've done a bit of research since starting this thread and here's what I've found out.
The stock WR throttle stop is about 34mm in lenght depending on year. Some actually came out at about 32mm some around 36. It should be cut down to 23 to 24mm in overall length. Cut it to 24mm then check to see if the throttle opens completely. If it doesn't, cut off a little at a time until it does. Make sure you don't too short. That can let the valve open too much and do a couple of nasty things to the carb. 1st it could get stuck in the wide open position and send you flying. 2nd, it could damage the butterfly/valve and crack it. If this happens it could actually break, get sent through the carb, and then into you cylinder. Not a good thing. When it's right, use some red lock-tite to ensure it doesn't come out.
Also, some shops and dealers actually have the stops removed. This in effect does the same thing as cutting the stop too short. Most of the time there aren't any problems with this method, but due to some tollerance issues when the carbs are fabricated, this "could" be a problem. Either way, it's best to just carefully cut the stop down and save yourself from the possiblitly of some serious headaches.