MOTORCYCLE GEARBOXES EXPLAINED: Shifting, gear mesh, forks and more.
The motorcycle gearbox can be a great mystery but Kevin Cameron is here to help us all understand how it works. Why do we have six-speeds and constant mesh (mostly)? Kevin and Mark Hoyer also divert i...
11 Mar 1h 12min
BIG BANG! How Firing Order Can Change An Engine.
Honda made a big impression with its close-firing-order "big bang" NSR500 and became dominant in two-stroke 500cc Grand Prix racing through the 1990s, replacing the "screamer" engine. Other factories ...
4 Mar 1h 6min
Why did the "Normal" valve win? Poppet valves vs. Sleeve Valves vs. Rotary valves.
There have been many engine valve designs since the dawn of the internal combustion engine. What made poppet valves stick? (See what we did?) There were many other designs and some, like the sleeve va...
25 Feb 1h 9min
Four Banger: How the inline-four was inevitable for motorcycles.
The inline-four has many qualities that made it the performance engine format of choice for decades. Ride with Kevin and Mark as they talk about the origins of the inline-four and how we have explored...
18 Feb 57min
Hello Sparky! History of Ignition, Spark! Open Flame! Hot Tube! What?!
We just want to light the fire, that's it! Kevin and Mark dive into all the different ways internal combustion engine builders have found to light the combustible air/fuel mixture. There has been spar...
11 Feb 1h 15min
Why Steel Pistons and Cylinder Heads? Why Now?
In the early days of internal combustion engines, pistons were typically made of steel, but it wasn't long before aluminum took over (thanks, W.O. Bentley). But steel pistons and even cylinder heads a...
4 Feb 1h 3min
Torque! Tolerance! HOW HARD DO WE TURN THE WRENCH?! Feel? Force? Learn about tightening bolts.
"Don't want it to come loose!" This is true, but how many mangled fasteners and engine cases have you encountered? More than you'd like. So Kevin and Mark decided to talk torque, torque wrenches, lock...
28 Jan 1h 3min
Why OVERHEAD CAMS and How Did WE GET HERE?
Kevin will start with atmospheric intake valves and someone from the 1800s, but for real we are talking about Overhead Cams here. Why has OHC become the standard for four-stroke-engine valve operation...
21 Jan 1h 5min
