03 PITBULL intermitent, cutting out

[Five Five]

just came back from a short evening ride and my bike starts to cut out at the low end of the power band whether it's cold or hot.the idle has an even thump to it but as i crack the throttle it acts like its a loaded up (hesitates).this has been going on for a week and seems to be gettin worse...yea i pulled the plugs and they have a nice clean burn, the exaust pipesssoot has a nice even dark grey tan color to it (good burn) here is some recent changes i did about a week ago....oil change...and added more restriction to 18"rear exaust pipe(baffle adjustment) due to it being too short and not enough back pressure. prior to my ride tonight i reset my baffle to it's previous setting to eliminate this variable, but the intermitent problem is still there...could it be an electronic ignition module issue or a fuel starvation issue ?

 

[surferdude]

Pull your bowl and check for crap in it ... at least that's where I would start ... hope you find a fix for the problem soon ... :flag:

 

[BadBrad]

My wife's '03 had the lining of the gas tank separate and continued to cause fuel flow issues until I recently re-lined the tank. Every time I pulled the plug on the bottom of the bowl, it was filled with rust like residue. Large pieces of liner would wrap around the petcock filter. It was a damn mess. Take a flashlight and shine down into your tank. You'll see it if it's separated. Thin green/yellow pieces. I used Caswell tank liner and it was not that big an issue to do. Keep us posted on what you find.

 

[mobsta]

like somone said pull bowl.clean jets

 

[Gas Man]

Check the carb. Pull the jets and see what numbers you have.

What rpm and/or speed does this happen?

 

[Five Five]

no issues with the carb, went ahead and put a rebuild kit in it anways...put it back together and the problem was worse...front cylinder cutting in and out....now im getting pissed....what the hell ???? pulled the plugs to read the story....hmmmm? front plug sooty but dry.... rear plug clean...electronics are good fuel is good but the front cylinder is not firing consistently " SPARK PLUG WIRES"
CRAP ??? replaced them and it runs like a champ


thanks for everyones input

 

[BadBrad]

Glad you figured it out! There's nothing sweeter than a good running Dog!

 

[stlmikie]

Good job Bill! Fells good to find stuff yourself huh. And inexpensive to boot. I bet that some guys were thinking the ehc.