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Thread: Building HS40

  1. #11
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    https://www.ebay.com/itm/Carb-50cc-7...-/332407292233
    Its shipped super fast nice quality has changeable jets and runs great.

  2. #12
    Senior Member delray's Avatar
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    DELRAY
    that all depends on the cam you plan on using. can put you in the pall bark.
    for example: if you just want to stay with a stock cam ,but still want to rev it little higher and it will when engine is setup correct and do not forget to use a billet rod. the old style stock hs-rods will break.
    i would go with the animal retainers and keepers and animal 16 pound spring. all this will give you the correct valve spring setup.
    correction on this if you where doing a flathead hs-40 motor. use dynocams retainers for flathead briggs . you have to machine little inner step of to clear the animal spring. this will give you the correct spring height (.800)

    left animal and center dynocam


    left dynocams and on the right animal retainer

    also note on the keepers where the locks are at. I have seen animal's work before,but never seen where the locks where position. here is a picture of animal's that did have the correct height on a hs-40 flathead.

  3. #13
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    112B4A1D-BEED-43E1-B0CF-55BDBAAA7213.jpeg
    Well got the ol bike going today new torque converter on and new jack shaft still got to put the timing advance key in but as you can see it’s got some torque!

  4. #14

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    Awesome

  5. #15
    Senior Member delray's Avatar
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    same kind of bike i learn on.....

 

 
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