Most everyone has one or two friends that are total gearheads. They can fix nearly anything and even better they can take something that runs well and make it run better for longer. I’ve always ...

I absolutely love books like the Motorcycle Fuel Injection Handbook! My wife thinks I’m nuts, because this is my favorite type of book to bring on holiday at the beach. A leisurely holiday gives me ...

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 the WR125R, Yamaha hopes to introduce beginner riders to the sport and perhaps reignite the flame in experienced riders ...

Port fuel injection (PFI) was a major milestone in the early '80s. The integration of PFI rapidly changed the way fuel was delivered by increasing fuel economy and improving engine performance. Even ...