Ok, let's think about this. When it goes from forward to neutral that means the e-unit coil lost power momentarily and got it back so it rotated the drum (it is unlikely a melt spot will cause this). Does the engine roll much further after it loses power? Turn power off and tilt the engine sideways, where are the pickup rollers when the engine stops? Photos will help with where the rollers are located. Does it only lose power on this one switch or other places? If the engine is running slow enough that it doesn't roll very far then where the rollers are located on the switch is where the problem is at.
Gene Anstine
