GM's Detroit Diesel division once made a two-stroke engine. A certain trait about this engine would lead to it getting the nickname of "Screaming Jimmy." ...

Bore and stroke are two important measurements that help determine an engine's power. Here's what they mean and why they're ...

Now, General Motors (GM) has gone and filed a new patent application for... a two-stroke engine. The document explicitly mentions use in hybrid vehicles, immediately raising a question: Is GM ...

The Fuji Go-Devil crammed a 50cc engine into a suitcase-size package, and this one that's for sale has only been unfolded ...

Detroit Diesel’s two-stroke engines earned their “Screaming Jimmy” nickname the hard way, with a piercing exhaust note and relentless mechanical clatter that turned work sites, logging roads, and ...

Our friends at Slavens Racing built their own YZ300X using a 2016 YZ250X as its starting point. And they gave us a chance to ...

It looks like GM is working on modernising two-stroke engines by tackling their emissions problem. This could open a whole new chapter for internal combustion. It’s been a while since two-stroke ...

GM has filed a patent application for a two-stroke engine valve system. The patent application is tagged with patent number US 2025/0354528 A1 and was filed with the United States Patent and Trademark ...

General Motors may not be building a bike engine, but this two-stroke concept has real potential for motorcycle engineering.

V3 engines are about as rare as unicorns, having made only sporadic appearances through motorcycling history. The first known ...

General Motors (GM) is revisiting a technology long thought to be obsolete in the world of cars: the two-stroke engine.

Popular in Taiwan, the KTR is one of those unassuming commuters that don’t stand out in any way. This custom specimen is a real stunner, though ...