Uploaded January 2026 | Updated September 2026, 2 weeks ago

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I bought the cheapest 125cc engine, that I could find on eBay. Will it run? Will it shift? I unbox the engine and install it into a CT70 bike for testing. I hope you enjoy the video and the results we find.

Link to the engine I bought. I’m sure the link will expire when inventory is gone:
ebay.us/m/Fv9Dlf

Link to the video of riding the CT70 K3. The trip was 35 miles:
youtu.be/zpSXAX2myss?si=vqlBxGbJpxhqZM1Y

Nibbi carb:
amzn.to/3LoZa0w