OK, I remember with my honda everyone said check your differentials and oil after playing in the water. How is my 850..... Took it in some deep water.. Should i change diff oil or just change when specified. ?

 

oil turn milky when mixed with water just have a look!if it is its NFG!

 

if you have water in thier then thiers a bad seal or you went over the end of the vent line(usually loacated on the handle bars) to get water in the diff. just pull the top plug out to see if it looks milky but make sure its sealed back in there good. imo.