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  1. #1
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    very newbie question - pumping a bike

    Hi guys, sorry for such a dumb question but I cannot find any info on this.

    I need to pump my tires up on my bike. I am no bike expert but I know that they are schrader valves and I am using a small hand pump. "Blackburn Mountain Air". It supports both schrader and Presta valves.

    Problem is I can't get an air tight lock on. I've never dealt with schrader valves so while fooling around with it I realized pushing the pin in released all the air and now one tire is completely flat :\

    I've had this pump for ages and lost the instructions a long time ago and have never needed to use it till now.

    Hope someone can help.

  2. #2
    You Know!? For Kids! jsharr's Avatar
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    http://www.bicyclinglife.com/HowTo/ConvertAPump.htm

    I think the link aboove may help you convert your pump from schrader to presta. Bet that is why it will not lock on.
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  3. #3
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    Thanks for the response but I am a bit confused still :\

    My tire valve is schrader so I don't think I need to convert my pump to presta. But if I had to all I do is flip the inside piece around I think.

    That link did mention lock caps and I assume I do have a lock lever on top but I don't notice anything when I open and close it. No idea how to tighten the cap either if that is the problem.

  4. #4
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    Try a local shop for assistance - I can't imagine not getting the 30 seconds of help it will take.

  5. #5
    Senior Member hotbike's Avatar
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    See if the "nozzle" has a threaded ring around it.
    Try tightening it up.

  6. #6
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    You've never dealt with Schrader valves? Like on your car, motorcycle, lawnmower, wheelbarrow and kid's bike? Really?

  7. #7
    pj7
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    Quote Originally Posted by ettsn View Post
    You've never dealt with Schrader valves? Like on your car, motorcycle, lawnmower, wheelbarrow and kid's bike? Really?
    It's possible, really.
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  8. #8
    Elitist Troglodyte DMF's Avatar
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    You lucky sod!

  9. #9
    Senior Member SweetLou's Avatar
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    Quote Originally Posted by mlink22 View Post
    It supports both schrader and Presta valves.

    Problem is I can't get an air tight lock on..
    This might be the problem. In my experience a pump that can handle both is usually set up for presta valves. You probably need to convert it to a Schrader valve.
    Download the manual from http://www.blackburndesign.com/support.html
    I don't know if your pump is the same, but it might give you an idea.

  10. #10
    Pwnerer Wordbiker's Avatar
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    ...and please, get a new computer.
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  11. #11
    Nuclear Neil
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    Check the rubber seal in the chuck

    I do not knw what your pump looks like, but on some pump models the chuck on the hose end has a reversable rubber sealing thingee. You may be able to remove it, flip it over, replace it and be able to maintain an air tight seal on the valve stem.

  12. #12
    Call me The Breeze I_bRAD's Avatar
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    Quote Originally Posted by pj7 View Post
    I started using AutoCAD about 3 or 4 years ago. (lots of people don't believe that one)
    I don't believe you're actually using AutoCAD either. What is this, 1994?

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