Engine Configuration Single-Cylinder; Air-oil cooled ... But that wasn't the case back in the 1990s, and clearly, the DR Big ...

The simple construction of a single-cylinder engine (both for two-strokes and four-strokes) makes it a perfect power source for an inexpensive motorcycle. This was also the ideology followed by ...

It sure is. With a cast epoxy cylinder head, this engine will run for just long enough for a proof of concept. This experiment began by casting a single monolithic block of JB Weld that’s a bit ...

Other features of the single-sleevevalve engine are said to be silence, favorable comparison in weight with that of the poppet-valve engine; added strength and rigidity due to the depth of 4 engine ...