Damn, that's really old news.
I agree. Reminds me of a machinist who paired a couple of Yamaha late '60s era YDS3 250cc parallel twin engines to form a 500cc in-line four (that shared the same "built up" crankshaft (IIRC, this running and ridable bike appeared in a motorcycle magazine). Some of the machinists in here might consider similarly configured project using a couple of Chinese 2-stroke bicycling engines.Not my cup of tea, but regardless a considerable amount of skill & craftsmanship are involved.-Kirk
That second engine is a 4 Stroke engine, notice the external rockers on top for working the intake and exhaust valves.http://www.youtube.com/watch?v=L5SwXtBwJgQ
Not my cup of tea, but regardless a considerable amount of skill & craftsmanship are involved.
And to be fair the video stated first time started, so I’m sure it was fine tuned later. However compare the sound to this tiny 2 stroke...
http://www.youtube.com/watch?v=McRGRD4lQY4
-Kirk
Speaking of hands, the head machinist at a machine shop I worked at (while fresh out of trade school) was missing a finger from one hand and a couple from the other hand due to separate work related injuries (this guy was an older man from Denmark or there-abouts). He was a extremely talented machinist (regardless of his injuries) and a very nice guy at that.neat project for someone who has wahy to much time on their hands...LOL!Map
Opps, I meant to say 4 stroke.That second engine is a 4 Stroke engine, notice the external rockers on top for working the intake and exhaust valves.
neat project for someone who has wahy to much time on their hands...LOL!
Map