no ive never hurt anything with the dry system and i sprayed it all the time, im talking a 15 lb bottle every 3 or 4 days for 2 months. i had a couple pops. and melted a couple plugs but thats it. nothing that hurt anything. When u play with wet systems thats when hurt stuff. as long as u set your timing right and mix a little good gas u should be fine.
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