If you get water in the crank case, use tranny fluid to clean it out.
I got my 250sx stuck in the river last year, the guy with me had to tow me out. I got the trike started and back home, but when I looked at the dipstick the oil was like a milkshake.
I drained the oil and put 1/2 fresh oil and 1/2 tranny fluid back in. Started the trike, let it warm up and then drained the mix out. Tranny fluid absorbes water.
I then put fresh oil and an new filter in and it was as good as new.
ATCnut
82 185s - sold
83 200x (hopped up)
84 200x (stock)
84 70 (lost this one to the DMV)
85 70 (soon to have lights, a foot brake, and CDI ignition)
84 200es (parts trike) - sold
85 350X (the best)
85 350X (siezed motor, dream of a poweroll kit someday)
85 250sx (frame was trash, got parted out)
86 250sx (the tractor)
86 250sx (a nicer tractor)
86 250sx (an even nicer tractor)
87 200x (parts trike, its really rough, a dog was chewing on it for a while)
87 250es Big Red (the tank!!)