Hi Louis.
This was my setup.
1 (wot) curve with +2*
#15 pilots - 2 turns out, and idle set to about 3000 rpm
stock needle and needle jet - leanest position
Right #230 / Left #240 main jets
air correction - sol.2 #50 / sol.3 #130 / always open #60
Air box - stock - but with the rings in the snorkels removed.
Pipes cutted 35mm
cylinders are "cleaned up", aux. exh. ports widened to the center (2mm wall between main and aux. exh. ports).
Plugs are NGK10. I did a plug chop - (trining video) and they came out, as clean as the Water from a glaciar in Greenland, but, the "ring" in the bottom of the ceramic was there (some say this is what Counts- I have no idea) I just took them out to look at them and assure something was not terribly wrong.
This Means (to me anyway) that I can not go leaner without risking engine damage.
When I am warmimg the engine, keeping it Bellow 8500rpm, all is good. Engine revs quickly, just as it should... for 4-5 minutes, after that I´m rich. Trying to give it more revs, the problem is WORST, because then it becomes really rich.
If I gave the bike 2 or 3 laps on ring its neck mode, and tryed to launch after that, I think the problem would not be there.
But, warm up lap, is not full ring, and the engine load up... it also loads up waiting for the lights, even if I blip it.
I can try some different Things, but it took me a year to get where I am, with acceptable performance... and to be honest, I have no idea what to try, I would have to Work along... I can not go leaner, and even if I tryed bigger mains Associated to bigger air correction, well, I´ve been there, and I did not like that main jet changes were very very hard to notice at all. Like it is now, a main jet change can be noticed quite easily, and that gives me some degree of security, or at least that´s what I tell myself
If we assume that the problem is that the engine is loading, well, a solution could be to create a separate/independent electric Circuit that would power both solenoids open. I could switch this system ON while for exemple waiting for the lights, or ½way the warm up lap, and hope the engine would clean... But... this is only an idea, and it´s actually Agains track thumb rule of simplicity. But it would be cool to have a red button on the handle bar that said "launch"
We´ll see...
It would be nice to hear if some of the other 3MAs that are used at the track have encountered this issue.
So, with this setup