An engine's bore refers to the diameter of its cylinders and stroke refers to the distance they travel. These measurements ...

GM modern two-stroke tech aims to revive lightweight, efficient combustion engines with a new patent using electronically controlled sliding ...

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." ...

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 ...

If we ran a poll on Visordown tomorrow asking if people prefer two or four-stroke engines, the ringy-dingy two-smoke would ...

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 ...

What if the engine of the future wasn’t just a dream, but a reality? Imagine a power source that combines the raw, exhilarating performance of a two-stroke engine with innovative efficiency, ...

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand how ...

The cylinder bore is only half of the equation that determines an engine's displacement, or size. The other half of this ...

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