I have a 36" Scag Walk behind with a Kawasaki fb460 12.5hp that has an electric clutch blade engagement. I have been told the engine needs replaced. I also have a fc420v 14hp that is on my older Bobcat walk behind mower. The Bobcat fc420 does not have an electric clutch engagement. I want to put the 14 hp engine on the 36" walkbehind. Is this possible? My question is can I take the alternator off the fb460 12.5hp engine and put it on the fc420 14hp engine? The crankshafts are the same. Is this a fairly straight forward procedure? Thanks in advance.