For the very first time, fuel-injected two-stroke engines are coming to mass-produced off-road motorcycles in the form of KTM’s patented TPI (Transfer Port Injection) system. TPI will be available on ...

Two-strokes are far simpler machines than four-stroke engines. They’re also lighter, easier to work on, and downright angrier, pumping out a lot more power per cubic centimeter of displacement, which ...

With ever-increasing stringent laws on combustion engine emissions, it’s pretty hard to keep up your game in the 2-stroke world. However, KTM just announced it will introduce some groundbreaking new ...

Two-stroke engines were phased out by tough pollution laws and fuel economy targets, but they could be making a comeback with KTM, Honda and boutique builders. KTM and Honda have both registered ...

Last month, KTM announced it will introduce some groundbreaking new fuel-injected 2-stroke engines in their enduro range. Well, naturally, Husqvarna will benefit from the same technology. Husqvarna ...

Husqvarna has just unveiled two new enduro bikes with fuel-injected two-stroke engines for the 2018 model year. This news comes very shortly after KTM announced their new fuel-injected two-stroke ...

The two-stroke gasoline engine was once a marvel of engineering, offering up huge doses of power in small and lightweight packages. Unfortunately, gas two-strokes also burn oil by design, making them ...

This paper describes the fundamental principles of operation of a mixture injection system now called the Compression Wave Injection system (CWI). The system has been initially designed for use in ...

We love ourselves a good oddball engine, and tiny, scrappy Mazda certainly must be responsible for more such engine concept patents per market-capitalization dollar than any other. We just discovered ...

As promised back in March, KTM has unveiled a fuel injected two-stroke engine that's expected to give four-strokes a good run for their money. Available in 250 and 300 cc capacities, the new ...

Conventional wisdom suggests that our faithful internal combustion (IC) engines are heading the way of the buggy whip. The lithium-ion battery has arrived, emissions standards are tightening, and ...