by Chris
(Langwarrin, Victoria, Australia)
motor runs fine when first launch about 2-5 mins in cuts out. Does not cough or splutter, just goes bang. Little rough to start again then is fine for the rest of the day. Seems to only be when motor is warming up going from cold to warm. Have checked and cleaned carbi it was spotless anyway. Jets clean. Spark plugs good. put inline clear filter as thought it may bean airlock, seems to be ok. Wondering could it be fuel pump when cold to hot? coils just not sure. Please help as motor is a ripper but just does this and cant figure it out. Cheers.