weep hole

6 replies to this topic
  • rsumney

Posted November 02, 2009 - 06:54 AM


my 06 450f has a weep hole on the side cylinder. does this need any special attention when washing the bike, like plugging it so no water goes inside?

  • Aka.Goose

Posted November 02, 2009 - 10:33 AM


I keep it simple and just pop a q-tip in the hole before washing and try to avoid spraying directly at it...I don't think that is even really all that necessary as I always ride the bike for a few minutes right after washing anyway, to evaporate water that's hard to get to...

  • mxvet37

Posted November 02, 2009 - 02:39 PM


I cover mine with a little piece of duct tape, just in case...

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  • dustin63933

Posted November 02, 2009 - 07:56 PM


Well it is there to drain water. I would like to think water going in there couldn't be so high pressured to hurt the metal casing of a spark plug or the weep hole's wall.

  • grayracer513

Posted November 02, 2009 - 08:26 PM


Well it is there to drain water.

It's actual purpose is to drain away oil that might come from a leaking cam cover gasket, or fuel "smooge" that would be forced past a leaking spark plug. Draining water is an entirely secondary function. I personally don't concern myself with whether water gets in it or not, but there's certainly no harm in plugging it while washing.

  • KJ790

Posted November 02, 2009 - 08:49 PM


If you want to plug it, a golf tee works great. Personally, I don't bother to.

  • rsumney

Posted November 03, 2009 - 12:57 PM


Thanks for the info guys!

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