yes, flush it after every ride. and if you roll it over, DO NOT HIT THE START BUTTON, get it towed back and pull your exhaust and intake plugs and replace the spark plugs. Watch for corrison on your spark plug cabs. Don't go hittin the waves at wot throttle, my buddies in a halo because he thought he could fly with the birds.
But if you get your timing down you can double the waves. Or at least I could on my ultra 150