I HAVE A 07 RINCON 680, LOCKER IN THE FRONT 27IN EXECUTIONERS, 2IN LIFT, AND WHEN I GO IN DEEP WATER IN CUTS OFF. THE BREATHER ISNT UNDER WATER, AND I CAN PICK THE BACK OUT OF THE WATER AND IT WILL START UP. THEY TOLD ME IT COULD BE THE EXHAUST, SO I CHANGED THE THE TIP AND ELIMINATED THE SPARK ARESSTOR, BUT DIDNT FIX IT PLEASE HELP.. WES

 

If you try to idle under water it will shut off due to way too much backpressure caused by the water. My bike you have to keep feathering the gas to keep it running under water. Try an exhaust snorkle to keep the air moving.