The 2012 Neo's 4 brings another engine flavor to Yamaha Europe's roster: the 4-stroke liquid-cooled 49cc version of the Neo's original power plant, now with lower emissions and exceptional economy.

A patent from Porsche shows it is working on an innovative yet complex new engine based on a six-stroke principle ...

Polaris Outlaw 50 – This is a 49cc single-cylinder 4-stroke mini quad with ... has been improved to accommodate the increased speed. It houses an 89cc 4-stroke single-cylinder engine with electric and ...

Tough just like its bigger 125cc-class brother, the 2014 MY Yamaha Zuma 50F also boasts on a 4-stroke 49cc highly-capable engine which makes this two-wheeler great for both commuting and zooming ...

The simple construction of a single-cylinder engine (both for two-strokes and four ... This Honda is powered by a humble four-stroke single that churns out eight horses. Coupled with a 4-speed gearbox ...

Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now ...

United Launch Alliance’s next-generation Vulcan Centaur rocket… Read More Jeff Bezos’ Blue Origin space venture confirmed that one of its BE-4 rocket engines suffered a significant anomaly ...

Engine 49cc single cylinder Power 4.5 Horsepower Torque 2.4 pound feet Only three years ... and who can blame them when the result was bikes such as the RGV250? The 249cc, two-stroke V-Twin pushed out ...

Along with a TIG welder and mechanical ingenuity bordering on genius-level, all of which come to bear on this fridge compressor to four-stroke engine build. The video posted by [Let’s Learn ...

How hard could it to be to build a two-stroke internal combustion engine (ICE) from scratch? This is a challenge that [Camden Bowen] gladly set for himself, while foregoing such obvious wastes of ...

The 4-H Small Engine project creates the education and hands-on opportunity for youth to learn all about engines. In this project youth will identify and discover the function of different engine ...