Pyromania.

well I tried all my leads (vacuum inlet for tank, resprayed wd40 everywhere, almost set on fire!, also checked th drain plugs… you never know)… nothing slows down that beast.

it only happens when hot (hotter=higher idle) and ONLY if I whacked the throttle… goes higher and higher…. and stay there… 3 whacks =~1000 rpm more.

it does feel like there is SUCTION somewhere, but it ain’t with the outside… it’s as if there is a depression inside the motor. ie something that would suck air from a carb.

When i stopped it because of the smoke (WD40), i could hear coming from the RH carb (the one NOT hunting up, but not idling) gurgling sounds… freaky!! and if i opened the slide with my finger, the sounds got worse, almost like a boiling sounds ie bubbles.

To me it sounds as if this float bowl is getting sucked!