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Water in the air box

KTM AL

Well travelled
Location
Southwater UK
I was off roading yesterday and after going through a rather deep puddle the bike had a bit of a miss fire. After cleaning a the bike at home I found rather a lot of water in the air box. I am going to replace the drain bung with a pipe and tap to drain out any water that happens to get in there again whilst out on the bike. Filter is now drying out and a new one is in the post. Air box 29-12-2021.jpg
 

Morgan60

Well travelled
Location
USA
That must have been one deep puddle! I do alot of riding in the rain here in the NW and I’ve never gotten any water in the air box.
 

KTM AL

Well travelled
Location
Southwater UK
Hi Morgan Yes it was deep , the front wheel disappeared, we were green laneing (unsurfaced byway) in the rather damp Surrey hills here in the UK. The airbox intake is about 2' above the ground so that's the limit. I wont intentionally do it again.Green laning 1 18-12-2021.jpg
 

Morgan60

Well travelled
Location
USA
Good looking bike. I always avoid puddles full of water in the woods because you never really know how deep they are until you hit them.
 

JulianK

Well travelled
Location
Germany
There is this hose running from the gearbox to the bottom of the air filter housing. Assuming it is a straight through crank case vent and the air box is flooded water would be sucked in at every 2nd stroke. ...oil change!

To make it more puddle-proof that hose might be rerouted to the top of the air box where the pule-air-valve gets its air from.
the pulse-air-valve (if needed) can be connected at the bottom or by a Y-connector.
 

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