You got any expreience with puch perfromance tuning? I have a magnum MKII (oil injected) with 14mm bing, 14mm intake and a biturbo pipe. I bought it with the mods. I think I have it jetted proper cause it runs good wide open (34mph). Can't get it to idle and it 4 strokes or bogs depending on needle position. Carb has new bowl gasket and I am running the stock air filter. Is it time to check the timing or is this still a fuel/air thing or......? Thanks in advance.