1997 Road King, FI, Evo engine. This is a customers bike. According to him, the bike suddenly started smoking out the exhaust while on a long ride. There is a lot of smoke coming out of the crankcase breather hose and a noticable amount coming out the right side of the exhaust and a little bit coming out of the left. Pulled the spark plugs. The front plug looks normal, the rear plug is oil fouled. The bike has 58K on it. Probably rings?