My Hawk was one of the bikes that spun the nut off the crankshaft letting go of the oil filter. I removed what was left of the oil filter flushed the engine, cleaned the oil screen and proceeded to ride the bike 400 miles home. After seversl more flushes and oil changes the screen no longer shows any shrapnel and runs like nothing ever happened. BTW the total cost of repair was around $20 for a new centrifigul oil filter.
