As it turns out, you can indeed build a two-stroke engine from scratch, using little more than some metal piping and other parts from the hardware store. You also need a welder and a lathe ...

A top-notch motorbike engine should deliver power ... including all the tools you’ll need to assemble the more than 150 parts. The finished model is a simplified replica of a V-Twin Internal ...

Also due to its low engine speeds, it does not need water cooling or an oil pump, which further reduces the number of moving parts and friction losses. Lubrication is provided by centrifugal force.

Pretty much every nut and bolt on your motorcycle will have a pre-determined torque figure according to the manufacturer, so every motorbike toolkit ... such as an engine casing, for example.

Honda developed a four-stroke motorbike engine back in 1979 to make a return ... struggling to machine the oval parts. Now, with the evolution of 3D printing (Porsche's already done it with ...