last weekend i was out riding and i had the wrong plugs in br9es instead of br9ecs well i got hom and found out i had been riding with 2 cylinders instead of 3. The center cylinder wasnt firing and the other two were bruning rich. Well i put the right plugs in and fired it up on the trailer. all three burning but then the gas from the middle cylinder started sputtering out from where the exshaust and cylider meet. my friend said this was from my power valves. My question is... will it run fine if i just open it up nest time im out or do i have to clean anything out. The gas that leaked out is what didnt burn all weekend. was thick and black.