YouTube on MSN

Rotary valve engine built from scratch! It works

Here's the process of making this rotary valve engine with a different intake and an exhaust system. It wasn't easy to start this engine and took some time to fully complete it. #shorts #diy #asmr #re ...
RideApart on MSN

This 100-horsepower rotary engine motorcycle was a bad idea, and that’s why it’s badass

The Van Veen OCR1000 was a rotary-powered engineering flex and one of the rarest motorcycles ever made. And now, it can be ...