I have an Echo CS 450 that my buddy fell through a pool cover and into the water with it. I dried it all out and of course changed the fluids. Blew it all out put it back together but it won't run. I can get it to idle rough and randomly it will rev up like the saw of old. The only thing I can think of is that the coil must have some intermittant problem now after falling and being submerged. Anybody have any suggestions I would appreciate it. This saw is only a couple months old.