Afternoon all, follow-on and variant of previous post. (1994 GTX 657X). I have confirmed entire fuel system is free and flowing to the carbs and the pressure relief valve and check valve for the tank are ok. With intermittent stumbling or dying at high speed and now (last time I had the ski out only time its done it) hard to restart condition should I check settings on low/high speed screws and test on water or do the full pull of the carbs. Rebuilt last year with genuine Mikuni parts and ran well most of the summer. I had been running ethanol free but couldnt get it for the last few tanks of the season due to outages in the area. Should I look for obstructions down all the way to the jets then do a pop off leakdown test or as long as I don't mess with the needle and seat those aren't needed ? Thanks for the expertise.