Champion j12yc or j14yc will do the trick if you can’t find ac. If you need a resister version to calm down radio noise, just add an “r” in front of those numbers. They are the correct extended plug with the gaskets. I have run those plugs in my motors for nearly 45 years in both stock motors and modified motors.
J12y, j13y and j14y are the older obsolete numbers but they turn up at flea markets and eBay. Theses will also work perfectly.
Last edited by Dragsix; 05/16/2021 4:50 PM.
