Hi can anybody tell me whats wrong with my KQ. My friends is like a sub it has water over the seat and the breather is still outta water. Mine only lets my muffler go under for about 10 seconds even if i floor it and it still stalls. My guess is I got it bored out .050 over and i have a stock carb and stock jets and stock airfilter. Could it be that now my engine is bored it needs more air and gas to give it the full performance. This is what i think. But the other problem is i still get water in my airbox after it stalls under water. My box is sealed and my breather has never gone under water except when i was following these guys when we were hunting through a creek But could someone help i've checked all my hoses and everything maybe theres a little slice in a hose that i'm not seeing. All the help would be appreciated thanks.

 

Honda4ever, interesting problem there! I had a friend up here that was constantly subbing his lt-250. I have actually seen it go under the water and only see Joey on the thing....no wheeler anymore!! I would say that your intake hose is getting under somehow. Sometimes the airbox will still get a bit of water in it even if you THINK it is sealed. I doubt you have a "SLIT" in a hose anywhere, because it would have to be a big one to let in that much water. You might want to start running your other breather lines up around the handlebars, ie, axle, PCV, brake drums, and any other ones you find. It also sounds like you may have a leak of some sort in your muffler piping somewhere. As long as you use reasonable throttle your machine shouldn't be "back-swamping". That's what we call that here in Alaska. I have it happen to me a lot whenever you are running single file through a long water hole and somebody runs up close to you and the wake from their machine forces a wave of water up against the muffler end and swamps my machine. If your RPM's are high enough then this shouldn't happen. That's my experience anyway. But, I would definitely run some tubes to keep everything dry.
Mark

 

Water can be leaking into your carb and stalling it out. Then the water would go through the engine and into your airbox. its happened to me before.

 

could it becoming in through the carbeurator hoses, ecorman1 said that theres hoses from the carb. Today i went through the same canal that we go through and i wasn't deep at all and when i got out it was like puttering I was like how can this be my muffler wasn't under this time. Its making me mad.

 

what does the inside of the air box look like after it stalls? Does the air box drain still have its stopper in it? But Id be real carefullgettin this wet, it could eventually cause you some real prob down the road. Also really check your fluids after "wet" rides, take it from me, Im in the prosess of gettin the bearing and seals replaced in my front diff, simply from my lack of checkin the fluid after one ride. =( That ones gonna cost me a few bills

 

yeah i agree with rogn, i does cause a lot of problems down or in my case 10 mins. i blew my motor after playing "submarine" needless to say i don't do it that often anymore.

94 kingquad
85 230quadsport

 

Ya my fluids are fine. But sometimes i get water in my airbox but i know my breather isn't going under. My airbox is sealed with silicone. My muffler goes under and it stalls. Theres like a little hole thats rusting away right underneath my muffler like an inch from the end of my muffler. I know my timing and everything is right so like i cna't be releasing exhaust wrong cause i just had everything all done to it, new valves, valve guides, timing chain, timing chain tensioner. That cost a pretty penny. But i think cause i had my 4wheeler bored out .050 over like 5 months ago and i think since i have stock carb and jetts and airfilter do you think i need a jet kit and k&n filter to get maximum performance.

 

H4Ever, I really don't know what to tell you to look for exactly. Your description of the problem points to many things. Hopefully someone here has had a similar occurrence and can advise you. In the mean time make sure your clamps and hoses are all tight. Particularly the clamps either side of the carb. And keep looking here, somebody will figure it out...
Chuck, Suzuki KQ 300, GPS & lunch...

 

Well everyones ideas are great so far so i'm gonna go out to the garage and go explore my tubes and everything i should be back in a while.

 

Honda4ever, I was just reading the post again and thought of something else. Your carb should have one or maybe two vent hoses on it as well. My 500 has two of them. I got water in those a couple times and finally found them and got them ran up to the handlebars. We use these little GM Pickup axle vent ends to cap them off.You can also get them at any parts store that sells DORMAN automotive products. they work to keep the water out even severe splashing and such. they don't cost very much to buy about 5 of them. I believe that is how many I am using. However, in apinch, you can get three and branch a couple of them together to save a little. they have a larger neck than the tubes on the 4 wheelers do so you will have to buy a small piece of 3/8" fuel line and some universal vacuum connectors to hook them up. Just be careful which ones you connect to. don't run the carb vents with the axle tube vents! You could pump fuel into the axles in a worst case scenario. That jerk Murphy will strike just when you thought it was safe.