wr 400 airbox

I have a 400 WR and I have noticed water in the bottom of the AirBox (Under the air cleaner). I have also noticed there is a cap on the bottom of the drian hole?? Is this normal? I did not buy the bike new and I am not sure why this cap is on there, not allowing the water to drain, anyone got any ideas, suggestions?

Yes this is normal. The cap has a pinch clamp holding it on. After a couple of water crossing just pinch it with your fingers and pull it off.The water will drain out.

I cut a small slit in mine

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