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I'm going on a ride this weekend with a LOT of water crossings. SOme will be pretty deep. So I'm worried about waterproofing the intake to prevent drowning.

I plan on sealing off the drain on the bottom of the airbox, putting a little grease in the spark plug boot but I wonder about the carb.

I guess I could put some grease around the lip of the boots where the carb is mounted. Is there a hose coming off the carb I should be worried about? I know on my DRZ they say to turn one of those vent hoses "up" so it doesn't get under water. Should I do that on one of the hoses on my KDX? Make sense? Thanks . . .

I would not seal off the airbox drain

I use to run all the hoses coming off the carb into the airbox to keep them from sucking off dirt

scheckaet wrote:I use to run all the hoses coming off the carb into the airbox to keep them from sucking off dirt

You'd want to leave the bowl overflow tube hanging down thought, correct?

Come to think of it, I think it was the only one that wasn't in the air box.

OK...thanks...I'll route them up.

I guess the one that spews gas when you tip the bike over is the bowl overflow right?

probably

Mr. Wibbens wrote:I would not seal off the airbox drain

ditto

I wouldn't seal that air box drain, either. I wish I could find a better one, though. The ones on older Hondas seemed to be more effective. They looked like a pinched off tube.
If you get a little water in the top of your airbox and it CAN'T drain out right away you'll have a problem.

The only hose I'd worry about is the vent hose from the gear box. I doubt water will make it up the carb vent hoses.

I was at a race once with a pretty deep water crossing. Course workers were pretty insistent that we get off and walk the bikes across. They wanted us to stay upstream of the bike and stay between some ropes they had strung across. It went O.K.

Hmmm......

OK....can you help me with this.....sometimes when i hit a longer water crossing (not just a puddle) the bike will stall. 2-3 kicks later she'll fire back up. Wonder what it could be?

The boot that's on my airbox drain has lost it's shape, so it doesn't keep water out by any means. That's why I thought I should seal it off. I thought it might be the culprit of the water stalls...water getting into the airbox from the bottom. That got me thinking about the vent hoses too.....

The boot that's on my airbox drain has lost it's shape, so it doesn't keep water out by any means. That's why I thought I should seal it off. I thought it might be the culprit of the water stalls...water getting into the airbox from the bottom. That got me thinking about the vent hoses too.....

It could be that water is getting up through the drain. It's not supposed to. I always thought that drain thing was kind of cheesy. I had a plan to look through some of the junk bikes at the local shop and see what is used on other bikes. I like the Honda one but don't know if it fits.

The drain valve thing just slips on the spigot sticking out of the bottom of the air box. One should be able to find something else.

If your engine is at total idle speed when hitting the water it may just stall from the massive/rapid temp change in the pipe/case/cyl. Keep revs up, and use clutch control.