bike engine problems....? FFS! My old bandit used to cut out at first. Have u tried increasing the idle speed to check if it won't cut out?
bike engine problems....? FFS! Was about to suggest this Could also be the powerband might need replacing
bike engine problems....? FFS! daft I know - but have you checked the choke? echo the starter, does the sound change at all later on before it cuts out. I know you said tight but can you try describe it better, or even get a video up?
bike engine problems....? FFS! did it run ok before you put it in yours?-i'd be tempted to drop the oil and check for any metal shards within it-don't sound good mate if its tightening up.