PB Blaster+MMO
Had a stuck intake valve causing my cub to back fire through the carb. I mean literal fire like almost burnt my cub up haha right. Well i took the carb off cleaned it, took the head off sprayed in some pb blaster worked the valve up and down, reassembled everything and now she is running super good. Just thought i'd share the story and bout the pb freeing up that valve.
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