Custom intake manifold

Discussion in 'Motorized Bicycle Welding, Fabrication and Paintin' started by hollywood528, Feb 20, 2013.

  1. hollywood528

    hollywood528 New Member

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    I got most of the kit put onto the bike, now I am concentrating on getting everything pretty and set up just right.
    First problem I ran into was carburetor clearance on the frame with the stock intake manifold.
    I saw some extended ones online and decided to attempt at fabricating my own.
    Here are some pics so far... Next is some paint and then I will update with some pics of it installed after I get off work tonight.

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    #1 hollywood528, Feb 20, 2013
    Last edited: Feb 21, 2013
  2. scotto-

    scotto- Custom 4-Stroke Bike Builder

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    Wut........like dis?

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    Hey Matt, it's really nice to see your taking matters into your own hands and doing your build right with a little fabrication.......excellent (^)

    Kinda funny I saw your post this morning and happened to be making an intake mani for my current 4-stroke build today as well.

    Keep up the good work.......we will ride soon!

    scotto- dnut
     
  3. racie35

    racie35 Active Member

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    now thats different.wee.
     
  4. Meano

    Meano New Member

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    I went to supply company got weld pipe fittings. I used a 90 and two 45's.
     

    Attached Files:

  5. Toadmund

    Toadmund New Member

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    For those without a welder, you can get a 45Degree copper elbow piece, a strip of aluminum from a can or flashing for a spacer.

    Cut to size your aluminum strip and wrap it around the end of your intake pipe, then fit on the copper elbow piece.
    Make sure to sand or rough up and coat all mating surfaces and use lots of soldering flux.
    Melt in some solder into your joints with a propane torch.

    Make sure there are no burrs or solder drips inside the pipe.

    And there you go!
    I'd put a link of what I did but cannot find it.

    Found it:
    http://motorbicycling.com/showthread.php?t=24753&page=380Post #3796
    What is on my bike is the old setup with a 90Deg. elbow.
     
    #5 Toadmund, Feb 22, 2013
    Last edited: Feb 22, 2013

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