Hi
Yes the engine was rebuilt and here is a run down of what I have tried.
new spark plugs
new coil
new voltage reg
cleaned carbs
checked connections for arking all clean.

as far as I know there is no wire splice when I got the harnes it had the ground wire of the front lights all soldiered together so I removed it and put it back to original configuration.

When I rev it it fires but then I shut it off and pull the plug from the front it is wet.

Not sure if this is anything but I noticed the ground wire for the thermostat was off but when I connected it the lcd started flashing 135° so I disconnected it.