Hi, i own a 1992 fxlr which has developed a misfire, i think its on the rear cylinder. i put 2 new Ngk r DCPR8E plugs in and it ran great. left it a few days went for a short ride and it began misfiring again and back firing through the exhaust. i changed the plugs again for used ones but it still seemed to run on one cylinder.the bike has had a twin coil conversion, a crane programmable electronic ignition module (Model Hi 4) and a Mikuni 45mm carb,a 96cu and 1600cc conversion. the bikes only done 9000miles .And it has a new battery.
can anyone Help? and also recommend any other spark plugs that might be better?
thanks for all help received.
Dave.
can anyone Help? and also recommend any other spark plugs that might be better?
thanks for all help received.
Dave.