64 cc sthil 4 mix 54 straight bar

Au117

New Member
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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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.
 
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
 
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