I have been a John Deere owner for a long time. I purchased a 320 lawn and garden tractor a few years ago that had the original motor replaced with an 18 hp motor off a Sears tractor. The ignition switch and the PTO switches and wire harness were also from the Sears tractor. I have purchased new John Deere switches and am in the process of hooking up the old wiring harnesses. It would be helpful if I could find a wiring schematic for this model. If anyone can help I would appreciate it.Thanks.