Hi,I have a 2005 Harley Davidson FLSTFI 15th Anniversary Fat Boy I have just put on new barrels and pistons on and when I try to start it there is no consistant spark and when it does spark the bike back fires trhough the fuel injection the timing is set right and the cams the same I have tripple checked when I did the job I disconnected the battery when working on it, is there a re-set system for the bike or do I have to take it to a harley dealer to program. thanks Ron.