Well I've fitted the yasuni pipe to replace the Endy I had fitted and it's made a massive difference. When I bought the pipe I also bought a jet kit 80-98 from polini. To cut a long story short I had a run with the 85 main that was already fitted In and it ran fine. In the end I kept going higher until I reached the 98 and it still runs fine, should I buy another pack and keep up jetting ? I did a plug chop and here's the result on the lh side, the rh side is plug chop with Endy and 85 jet.
I see what your saying but I've tried all with the above result. I've gone down from a. 98 to a. 94 as I think it was a tad rich.