Changing main jet?

5 replies to this topic
  • slowxr

Posted January 22, 2004 - 01:58 PM


Can you change the main jet through the drain plug in the bowl or do you have to remove the bowl to access the main?

  • qadsan

Posted January 22, 2004 - 02:12 PM


It's been a good while since I've seen the stock carb, but as I recall the drain screw is seperate and cannot be used to access the main jet. There should be a hex capped pipe plug on the bottom of the carb's bowl which can be unscrewed and from there you can access the main jet from what I recall. If not, just loosen the carb's front and rear band clamps and rotate the carb for easy access to the float bowl which will quickly come off with a few screws, but I recall there being a hex capped pipe plug on the bottom of the float bowl to make things even easier.

  • Rokatt88

Posted January 22, 2004 - 02:54 PM


You Are Correct, Sir! (In my best Ed McMahon Impersonation) :)

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • slowxr

Posted January 22, 2004 - 04:13 PM


Yeah, that's actually what I meant. The big cap at the bottom. I remember changing mains on my 600 and you could do it that way without removing the bowl.
I'm just hoping it's the same on the 650. Thanks

  • smashinz2002

Posted January 22, 2004 - 08:47 PM


YES!! You can easily change out the main jet by unscrewing the plug on the bottom of the bowl. That's how I do it, it's very easy. (stock carb)

  • xr650Lroostnya

Posted January 23, 2004 - 07:38 AM


What about the pilot jet is that just as easy??? :)

Related Content


Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.