Weird. Check pump as U stated. If it has the stock head check for blistered paint from being overheated. Any chance the heat from exhaust stinger tube caused it?
Yea. My cpi's were bought used. Put them on my cub and after a few hard runs the silencers would smolder like a campfire that just went out. Pulled out the old packing and it was gooey and oily as fuck.
I would like to have a small shot on hand. Ride around playing on your normal tune. Then spray it and have the timing pull back out automatically. Would be sweet.