Hi all, Ive got a 91 nsr250r which refuses to start. Bought the bike two months ago and had a three hundred mile trip home with no problems. Bikes been in a shed since, due to work, weather, ect. Anyway tried to start it today, petrol on, full choke, no choke, nothing. Took plug from front cylinder, getting petrol, checked for spark, seems ok. Everything back together, still nothing. Had to leave it as temper was rising. plugs are ngk-r br9ecm ?.

Any ideas more than welcome.