Japan's antitrust watchdog on Thursday ordered the domestic unit of motorcycle company Harley-Davidson Inc to pay about 211 million yen in fines for imposing excessive sales quotas on dealers in ...

Gas-powered internal combustion engines need spark plugs to (literally) ignite and complete the combustion stroke, enabling the motor to produce power. They may seem unusual to the untrained eye, but ...

Beyond the heavyweight tourers, the 2025 Sportster S claims the crown as Harley’s most powerful cruiser, delivering a fierce 121 horsepower.

A gas engine needs fuel, air, and spark to get its internals chugging along. Take any of these out of the equation and the engine will have a fit. While the automotive industry shifts toward fully ...

There have been many snake-oil automotive products over the years, promising to deliver better performance and fuel economy, and nearly all were based on science as shaky as that of the mythical ...

It's no secret that Harley-Davidson is one of America's best and most iconic motorcycle engine manufacturers. With a layered history that dates back to 1903, the company has proven itself time and ...

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NAGOYA, Japan -- Japanese auto parts supplier Denso appears set to reach a long-sought agreement to sell its spark plug operations to domestic rival Niterra, Nikkei learned Friday, as industry players ...

When will diesel cars be banned in Australia? What's the difference between diesel and premium diesel fuel? What's the difference between diesel and petrol cars? Spark plugs are located at the top of ...

We earn commissions from purchases you make using links in our articles. Learn more. You’re likely aware that in order to keep your vehicle running in great shape, you’ll need to replace the spark ...

If you didn't know already, Harley-Davidson is in trouble. It all started when Harley’s annual report for 2024 revealed a revenue decline of more than 60%. Of course, media and public scrutiny ...