Small Engines (Lawn Mowers, etc.): Riding Lawn Mower, murrary, charging systems

Question
I am replacing a 14.5 OHV engine with a Craftsman 12hp engine on a Murray Riding Lawn Mower.Could you tell me where to make the harness connections from the Murrary Riding mower to the Craftsman 12hp engine.  

Answer
How many wires are on the mowew chasis harness?

Basically you need to connect the charging wires, engine shut-off wire and the starter.

Most mower charging systems are located next to the starter and the engine shut-off wire is near the throttle control block on the opposite side of the starter.

Let me know how may wires you have and if this helped at all.
Eric