Folks. My bike fell on rhs and now this outside cylinder is not igniting at idle and very rough. Gets better when the motor warms up a bit. I know it isn't firing as the exhaust is barely warm seconds after starting on the choke whilst the others are scalding almost instantly.
Can anybody suggest anything? I thought it was an air leak, no. Fuel is going through unburnt. Spark plug is not dirty or fouled or lean burnt. Could the spark plug be damaged? It was slightly loose, threaded down hard but only finger tight.
Can anybody advise what might be wrong? I thought maybe something had come loose in the carb but it seems unlikely. Please help.
Thanks