Masaaki Fukayama, the visionary behind Vision Design, has transformed the Yamaha TX650—a 1970s parallel-twin once overshadowed by its predecessor’s flaws—into a striking café racer dubbed the “TX650 Mustang.”
Drawing inspiration from the P-51 Mustang fighter plane, Fukayama’s creation marries aviation aesthetics with motorcycle engineering.
A Gorgeous Custom Yamaha TX650 Cafe Racer
Central to this metamorphosis is the engine overhaul: the original 654cc cylinders have been bored out to 750cc, equipped with new pistons to enhance power and performance.
Fuel delivery is managed by a Weber DCOE40 carburetor, typically found in small car engines, connected via a custom-designed and 3D-printed nylon intake manifold.

A bespoke 2-into-2 exhaust system completes the setup, delivering a sound befitting its fighter plane muse.
The TX650 Mustang isn’t merely a motorcycle; it’s a testament to Fukayama’s dedication to design and performance. By infusing the spirit of a WWII aircraft into a classic Japanese roadster, he has crafted a machine that resonates with both history and innovation.
For a detailed look at this remarkable build, visit the full article on Return of the Cafe Racers.
Sources: Return of the Cafe Racers, Vision Design