My 05 750 bf almost looses all power when you get in some serious mud or water. It won't run wide open when i give it alot of gas in water or mud and im not sure what the problem could be. Its still under warranty but i doubt that will cover this problem. any help???

 

looses all power? Can you give some more info? like still revs hi but nothing happens or bogs right out ... sputters? Are you running it in Low when your in the serious mud/water? How many miles on it? What kinda tires? any mods?

 

No it bogs down and sputters. it has about 1500 miles but the owner before me was an older man that just putted around on it. It has aftermarket tires but im not sure what kind.

 

It can be in high/low gear and the mud doest have to beat deep. running it through 5 inches of water fast will make it bog down and sputter to about 10 - 15 mph

 

have you cleaned and oiled your air filter lately?could be plugged up with dirt causing a overly rich condition

 

sounds like something is getting wet. coil wires maybe? check your spark plug boots. clean all electrical connections with electrical cleaner and apply a small amount of dielectric grease, even to the spark plug boots. like what was said earlier, clean and inspect your airfilter, make sure it isnt getting splash marks in the airbox.

 

My old bruin used to do that, put some dielectric in the spark plug wire and it worked fine after.