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) :)

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  • 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??? :)

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