Hi.Did you check the PAZON is advancing properly, to about 28 degrees BTDC at 3000 revs.
Does it improve/get worse if you release the choke lever (choke in working.
Does it improve when rolling back the throttle a bit? Are the jet needles properly installed?
It is possible to have the tip of the needle to not enter the jet tube with similar results.
Hi.On the stand, no load?
Or while riding, pulling the load?
Throttle position? (Cracked, 1/8, 1/4, 1/2)
Hi.
While riding.
Piero
Hi.If you timed it at 5000 then it got there with no load, is the problem only there under load ie riding on the road.
Does it pull hard up to 3300 RPM, as expected? Or, is it lazy (down on power) all the way to 3300, the break even speed?
Does this in 4th gear? 3rd? 2nd?
The bike starts well.Try raising the needles a notch. Adjusting the idle mixture may or may not be necessary depending on how it starts.
Most running is on the slide cutaway and needle jet. I would not go to a leaner slide.