ok. yesterday i was riding threw some foot-peg-high water playing around & stuff.. it started running crappy i went home. i opened the airbox and it was full of water.. i dried it out and it ran fine. today i got on it to ride and somthing in the motor was rattling and white smoke billowed out of the pipe.. i checked the oil and it was full of water.. we flushd it out 3 times then put knew oil in.. its still smoking and rattling.... and ideas on my problem...


The quad is an 05' 250ex...

 

it sounds like you sucked some stuff in to your cylinder and scored it I did the samething I would take the top end off and have the head re done that means New Piston and I would get new valves for it this is going to solve your problem also while your doing this go throught your carb and clean it inside and out!!

1988 250x
Bigbore
13:1 campression
profermance cam
uni airfilter
dirt runner tires
34mm mikuni carb
ac nerf bars
ac rear bar
lone star axle carrier

 

I had the same thing happen to me on my rancher last weekend. It is in the shop now about $1100.00 to get it fixed.

 

You got your oil full of water, that means you got the water throughout your case. You could also be looking at major bottom end damage. Connecting rod bearing probably for sure and maybe more. Bad news man.

 

crap!!!!! that really sucks im only 14 i dont have that kinda money.... it runs fine it just smokes bad.....

 

So It smokes real bad but runs fine?
I'd stop running it now if I were you. You sucked water into the cylinder. Water does not compress. You probably bent your valves and maybe even scored your cylinder. Time to tear it down and check it out. First buy a shop manual and do the tear down and most the repair yourself. If it damaged your lower end you will probably have to take it in to get it fixed. Don't take it to the dealer. They charge way too much. Find a reputable motorcycle repair shop near you. Ask around, you'll be able to find it. Plan ahead for the worst case senario, it might not be that bad tho. I pretty sure that you did valve damage tho. Good luck with it. Tear it down as soon as possible.