Stuttering and popping through exhaust
After doing some modifications on my 1999 I have gone from having a smooth running engine to one that continuously stutters and pops in the exhaust anytime you try to rev it above 2000 RPM. Along with that the tach bounces all over the place bouncing from zero to redline.
I made several modifications at one time so itís hard to figure out which one led me to this problem.
The modifications I made were: Doohickey, Thermo Bob, $.22 mod along with drilling the slide, and heated grips.
What I have done to try and resolve the problem: removed the $.22 washer, disconnected the heated grips and made sure I had good battery ground. I double checked to make sure the slide diaphragm had no tears in it. No change in the sputtering and popping.
The battery is strong and holds a charge. The bike easily starts and idles well.
I had fresh gas in the tank, but I have drained it out and am going to put fresh gas in.
I keep thinking that with the tach bouncing all over the place it must be something electrical. But looking back through the forum the only suggestion anyone has is check your grounds. Which I have done. I have even added an additional ground, but with no improvement.
I know it has to be something simple, the solution evades me.