[Dusman]

I pulled the plug today, and sure enough, the electrode was showing a very lean mixture as it was whitish.

1. I lowered the needle clip to the bottom setting per ya’ll’s advice. There is only three settings and it was already in the middle setting. It ran like a champ.

2. I put the K&N style filter back on, and it ran like dirt. Sputtering and spitting in 1/2 to 3/4 throttle range. Pulled the plug and it was sooty and black. Too rich.

3. I decreased the main jet from a 95 to an 85 and it ran similarly, but was lean again per the plug.

4. I put a 90 main jet in, and it ran a little better, but still bogging at 1/2 to 3/4 throttle.

Yes, I adjusted the mixture screw each time to get it “right”. It seems to like 1.25 turns out.

After that, it was time to quit.

I am at a loss as to what to do at this point.