Engine is running great, just stalls once the transmission gear box is taken out of neutral. I have checked the harness, which seems to be fine. Tecumseh peerless transmission. Should I clean all connections just to be sure, and then assume it is where the wire harness contacts the transmission nodes? Machine was in the middle of mowing, having been performing for about an hour and a half. Now it starts just fine, but when taken out of neutral, conks out. Any suggestions would be fantastic!!!