Ok, so far since posting, I changed the plugs (in case), taken rocker cover off and checked the gaps, all in tolerence, coils are off and Ill swap them over but I dont see it being that,.. the problem is the back fire through the airbox.
Tomorrow Ill put the cover back on, do the coils and Im going to put a shim or 2 under the needles in case its fuel.. the plugs look like its well lean..
Keep up the ideas guys..
