Hi everyone. I just recently purchased a GSX-R750 as my 3rd bike (Kawa kz250 and cbr250r beforehand). Just got it on Friday. I'll just dot point relevant information, and if anyone at all can help me, I'll be super grateful. -shipped to me in Tas from Qld, took 3 weeks. Probably hasn't run for over a month. -When I go it, wouldn't start. Was very low on oil. The Drain plug was either stripped, or more likely, I stripped the thread trying to open it myself. Anyway topped it up with 10w-40 without draining old oil. -Bike STARTED and ran fine. occasional backfiring. -Bike has a bit of corrosion, dint in tank, with a bit of rust on it. -When I filled it up with petrol at servo (was low) noticed a tiny bit of corrosion in tank. -Rode it for 150km or so on Sat. no probs, just occasional backfire. -Sunday WOULD NOT start. Wouldn't even turn over. -Managed to start it by putting into 6th gear and rocking back and forth a bit, allowing it to turn over when starting. -Slight smell of petrol from bike/exhaust? -Today, won't start even with the rocking back and forth. -It turns over for a bit (after the rocking) then there is a slight bang noise and stops. -I have a service booked in tomorrow that I need to ride it to. Anyone; help?