I've got a 47 UL with aluminum heads. As I was riding southbound, my spark plug went eastbound. It blew right out of the insert. The motor is rebuilt and the front head has an insert in it for the plug. I assume this was to repair damage. The insert appears to be aluminum and is approz 1 3/4" diameter. It threads into the head. No damage to the threads there. The 18mm plug screwed into to center of the insert. It's those threads that gave out. Does anyone know a good source to obtain a new insert? I'm not as dumb as I seem, but this is out of my relm of knowledge. Any help would be appreciated. Have a happy New Year.
Jedd
Jedd
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