64 cc sthil 4 mix 54 straight bar

Discussion in 'DIY Home Built Motorized Bicycle (non kit)' started by Au117, Apr 24, 2017.

  1. Au117

    Au117 New Member

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    I have been reading the forum the past 6 months, there is a lot of cool stuff. E mailed msrfan and have been corresponding with him. I sent him some pics of my first bike and he asked me to post it. So here I am. 54 Schwinn straight bar, 64 cc sthil 4 mix, walbro 76a carb, 14.4 to 1 gear ratio and fiberglass tank. It does about 35 to 37 mph. I have sure enjoyed this forum, can't thank msrfan enough.
    https://www.youtube.com/watch?v=aomH6rQbx14
     

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    #1 Au117, Apr 24, 2017
    Last edited: Apr 24, 2017
    Greg58 likes this.
  2. msrfan

    msrfan Active Member

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    Great looking and engineered bike Sean. These little motors scream pretty good and are a blast to ride. I go right along with traffic on most roads. Mine's geared to right about 45mph and after slipping the clutch a bit, doesn't take long to reach top speed.

    I'll bet the guys would really appreciate what you do with your other 4Mix motors.
     
  3. Au117

    Au117 New Member

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    Thanks for the nice comment Dale.
    As far as engineering goes you are top notch thanks for sharing. I have been messing with the Sthil 4 mix engines for the last couple years and have converted the 32cc and 64cc for rc ww1 aircraft. It took a while to get them to run right but after I figured out how to drive the 2 cycle Walbro carburetor pump off the intake everything fell into place. I like these engines, they're very light weight and just a power house for the size. The videos I'm posting are not bike related but do relate to the 4 mix.
    https://www.youtube.com/watch?v=C34dLX9NyTI

    https://www.youtube.com/watch?v=K6x3LfZj3gg
     
  4. msrfan

    msrfan Active Member

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    Well you got quite a few views and I'm sure those who saw it were impressed.
     
  5. Greg58

    Greg58 Well-Known Member

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    Great looking bike and plane.
     

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