A thread is a subject of discussion, it also is the material that holds your clothing together.What's a thread?![]()


I'm guessing that to have a two-cycle engine with two pistons/cylinders sharing one combustion chamber, both pistons must have moved together, and fired together. And then I wonder why bother with two pistons/cylinders? What are the advantages of that? Why not just one bigger cylinder?
Bragging rights. " This bike has so much power they had to separate it into 2 cylinders"
Why the "twingle"? Perhaps, redundency? If you have two siamesed combustion chambers, with two sparks, four valves...having ONE plug foul or ONE valve out of adjustment, ONE set of bad rings, will cripple the engine, but maybe not make it quit