2 stroke with pull-start

Discussion in '2 Stroke Bicycle Engines & Kits' started by Eegore, Nov 11, 2016.

  1. Eegore

    Eegore New Member

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    Hello,

    I am having trouble finding a small 2-stroke kit that has a pull-start so I figured I better come to the experts. This will not be going on a bike, and will not be carrying a large load on the chain so the lighter the assembly the better.

    All of the kits/engines I find these days are centrifugal start mechanisms.

    Any assistance would be appreciated.
     
    #1 Eegore, Nov 11, 2016
    Last edited: Nov 11, 2016
  2. Agreen

    Agreen Member

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  3. Eegore

    Eegore New Member

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    I was hoping they already existed installed so I don't have to fabricate changes to make them interface correctly.

    I find it hard to believe any one pull start fits every 50,60,66,80cc engine out there but I could be wrong.

    Thanks for the info.
     
  4. Eegore

    Eegore New Member

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    It looks like I had to look for 49cc pull starts. Unfortunately the mounting format isn't what I can use so I might have to just take the chance with installing the pull-start and hope it fits.
     
  5. Agreen

    Agreen Member

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    The one I linked to fits both 2 stroke bicycle engine kits. There is a 48cc engine and a 66cc engine. The 80cc is a false measurement of displacement, and should be a 66cc. But yes, it does fit ALL 2 stroke bicycle engines.

    Now, if you're looking for a 2 stroke with a pull start for some utility purpose, then why not check out something like a Tanaka engine?
     
  6. Eegore

    Eegore New Member

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    Well to be specific this is for a gas powered minigun prop. Cosmetically the 2 stroke looks better as it looks less like a weed-eater engine.

    My hope is to create a barrel assembly that spins when the throttle on a mounted handlebar is rotated. I will have to have a shop make a custom exhaust but for the most part I am thinking an engine kit will have most of what I need.

    I'd like to keep it around 30lbs but I don't think that will go as these engines look to be about 25lbs as it is.
     
  7. irishpowerjunkie

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    what if you went with a go ped engine with the plastic removed as they can function for a while with out overheating and they come with pull start and they are light enough with trans on them about 5 kg at most
     
  8. Eegore

    Eegore New Member

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    Ive not seen a go-ped engine with the plastic removed. I will research it and see if I can find one.

    thanks
     
  9. TheNecromancer13

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    If there isn't going to be much resistance, why not go with a weedeater engine? I have a 15cc 2 stroke weedeater in my garage that is far lighter than a bike engine kit, and it could probably spin a prop minigun barrel assembly just fine.
     
  10. Eegore

    Eegore New Member

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    Because it would look like a weed eater engine.

    The general concept of this piece is a gas motor used to spin the barrels and the 2-stroke visually has a more traditional engine look. Its a rough balance sometimes between what look best and what's functional, in this case its a weight/style trade off.
     
  11. TheNecromancer13

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    It would only look like a weedeater engine if you left all the plastic parts on it. If you remove all that, I think it would look just fine.
     
  12. KCvale

    KCvale Active Member

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    So you are making a movie prop for a gas powered Gatling gun? That sounds cool.
     
  13. Eegore

    Eegore New Member

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    Yeah its kind of a Mad-Max style thing. Its portable (slung) so that's why weight is an issue, and why I need the pull start, so it can be powered up while being held by the user.

    I don't know enough about how these work yet, how much load it can handle without throttle etc. but once I find one that holds a pull start I can get started with a inal design.

    The Bikeberry engine I got doesn't interface with a pull start so I need to get another.
     

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