water crossing

Greetings, I have purchased two used Trailblazer 250's, They run pretty well, however the local Beaver population has exploded and I frequently have to cross 1 to 2 feet of water. I am having stalling and no start issuse. Anyone have tips tricks or fixes?

My brother owns a 525 irs and runs perfect through dry trails . As soon as he hits a water crossing the bike stalls until after about 30 minutes sitting . I've soaked the motor with a water hose in the drive way and it didn't stall . Any riders out there have any ideas ?? We just finished the...