ok so the problem started after i changed the oil, i think. i changed the oil and it started up fine for a day or so, then i started it up and a girl decided to rev the engine before it warmed up. so since then the engine wont start. it will turn over, and occassionaly start for 15 to 20 seconds before turning intself off, any one have any clues? i checked the plugs. there fine,

 

I had the same thing happen to me with my old zx6 and it was the plugs. Sorry I'm of no help I guess.

 

anyone think that it could have anything to do with the type of oil? i had some royal purple 10w30 in my garage and used that. could that make it not start?