i got a 1990 zx10 last year for a great price, it had been sat for a while and i knew what i was getting into. cleaned out the carbs, fuel tank, filter and replaced the lines. bike starts up great no problems with the choke etc problem is pulling away it dosent want to rev and chokes and cuts off. i have to give it a bit of throttle ie 4-5000 rpm and it seems to clean itself out even if i let it idle for 5 10 mins no difference. once running goes great and idles and picks up pretty smooth. only does this at first start up, after getting through the initial pull away even if i shut it off and leave it for an hour or more no problems. fuel pump maybe? i replaced the plugs wires and running 94 octane and new air filter as well any ideas???