On my 85 125M (Honda) I have the stock air box, on the lower left corner of the BACK of the air box, there is a nozzle, I believe this is where the air enters the air box, as there are only two nozzles and the other one has a drain tube on it. If I were to stick a few feet of fuel hose onto that nozzle and hose clamp it, would I have a breather tube that allows me to go into deeper water if needed, everything else is properly sealed and water is only getting in through the intake, I think its because the nozzle is too low and its missing the tube that comes up around the gas tank.