While you can find some small diesel engines on Amazon ... good fuel efficiency and low-end performance that are suited for industrial work, agricultural equipment, or motorized vehicles.

Yanmar makes these water-cooled, single-cylinder diesel engines that you can use for virtually anything, from agricultural to ...

Sometime around 1990, a version of the classic Royal Enfield Bullet came with an small Italian industrial diesel engine good for only 6.5 horsepower. The resulting bike, which was called the ...