think I've done something very silly! on cleaning the engine I used power washer . when the engine was cold. left it to dry then fire her up, all was well. she ran fine. 3 days later u have quite a lumpy misfire .


prior to the jet was all was fine, engine had been services plugs ect..


any ideas guys what I might have broken

 

Could be a duff spark plug. I had mine changed and it would misfire occasionally but most of the time it was fine. Got it checked and the spark plugs weren't gapped properly. Changed and all is well.

 

I've cleaned the plugs coil leads ect. engine running fine clock a few fun miles..

just the engine check light keeps popping up