[jethro]

Went for a long ride (200km) not a problem. Got home, shut it of, went to put it in the shed an hour later and no go. Fuel pumps fine, spark looks great but slightly erratic. Cam timing is ok. According to the manual. Set up exh cam count back fifteen pins and lines up with the intake cam. Any ideas anyone? Ive tried everything. It does fire but wont run. The occasional backfire and occasional inlet pop. Is there anyway the ecu could be playing up? Thank you everyone.