greater air intake AND water intake prevention

[jaguar]

Taking off the stock "snorkel" will allow muddy water in (that gets splashed up there) which can cause your throttle to stick open. People do it to allow more air in which aids power output. But the snorkel is there for a reason. Too bad they didn't design it with a more voluminous intake. Once the muddy water cascades into the air box the air filter will pass it in because it only catches "dry" dirt particles with the air filter oil. The muddy water gets up there when it gets tossed "up" there while you are splashing through muddy water. My solution is to toss the restrictive snorkel and cut out a bigger rectangular hole. Then use something (I used cut out pieces from a quart sized mineral water bottle) that you can duct tape them in place to build a 3/8" or 1/2" tall "wall" around the big hole to prevent creeping water from coming into the air box. Also you'll need to duct tape the front edge of the cover to the air box. Also tape the right upper side of the air box to the frame, effectively making a "splash guard" for that vulnerable side. These two mating surfaces let splashed water in. Also as someone else mentioned, silicone seal the air boot to air box juncture. If you have already drilled holes in the air box lid for greater air flow then this fix won't work for you and you'll need to buy another lid (they are cheap enough) and do it right. I finally put my noggin to work on this problem after I lost the last MX race due to the throttle sticking open with dirty water getting in. It was dissappointing because I was going to win and it was going to be my only win of the year. I got 2nd place the first moto and then pulled off the track with this problem while in 1st place in the second moto. I was all prepared except for this one weak spot - water intake prevention. Also I've put silicone seal on the top of my carburetor to keep water getting in there where the cable sheath rests against the carb top. Theres a rubber boot there but I think water could still get in.
If you never ride after a rain then ignore this all. I know people here who only ride when its dry because they don't want mud to prematurely wear out their chain and sprockets. how boring

 

[89kdx200rdr]

i dont run a lid and i rode thru 3 feet of water for about 50 yards last weekend no prob. there is this little piece thats off a kx125 that you can put on your bike that blocks the open area in front of the airbox. i have posted pics of it. dont remember when. if your interested i will find it.

 

[89kdx200rdr]

maybe it was 2 feet i was sitting down and it was at my knees

 

[89kdx200rdr]

http://houseofmotorcycles.bikebandi...pt_id=289462&model_dept_name=KX125(KX125G1)US



right here dude 14024 a little trimming is reqd but will fit

 

[kmccune]

that looks interesting, does it have the "honk" sound like a KDX lidless airbox?

 

[89kdx200rdr]

yes it has the honk since the lid is off. .

this piece goes in the spot in front of the airbox
it's basically is a splash guard for airbox on the 89-94's

ican send u a pic if u wanna see it

 

[m0rie]

I'd be interested in seeing a pic of it. Can you post it as an attachment to the forum?

-Maurice

 

[89kdx200rdr]

theres a pic here.
http://www.dirtrider.net/forums3/showthread.php?t=86971&highlight=14024

 

[m0rie]

Thanks, i'll have to pick one of those up next time I order some OEM parts.

-Maurice

 

[89kdx200rdr]

just get it from bike bandit if you want it because your local moto shop will have to order it also

 

[marksharp]

Will that cover fit a newer model bike such as an '03 220?

 

[89kdx200rdr]

dont think so the frames are different

 

[jaguar]

That splash guard will protect splash from entering at the front juncture of the lid/airbox, but not from what enters between the seat and the front of the airbox which is much more an entry point.
And concerning the comment of "I went thru 3 feet of water with no problem":
No "noticed" problem. Your bike can be ingesting water and still run. And if the water doesn't have too much muck in it then it won't cause your carb slide to stick. But ANY amount of muck will wear down the cylinder, rings, piston, and bearings. I know because now I have to replace the lower rod bearing which is not a fun job. I'm just trying to save you all a headache if you occassionally go thru mud puddles.

 

[89kdx200rdr]

And concerning the comment of "I went thru 3 feet of water with no problem":
No "noticed" problem.

see post #3
maybe it was 2 feet i was sitting down and it was at my knees