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A comment on How a 4-Pound Engine Can Replace a 40-Pound Engine. Parent comment

Re:How a 4-Pound Engine Can Replace a 40-Pound Engine by hinkley on Wednesday June 15, 2016 @04:36PM (#11911978)
I'm curious. With the air chamber in the cylinder head, why can't they fire 3 charges of fuel per revolution instead of 2? I would think with some appropriate valve configuration they could do that and it would simplify heat and torque problems. Maybe they'd need 2 air chambers for that (but then the counterweight wouldn't be necessary).
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Re:How a 4-Pound Engine Can Replace a 40-Pound Engine by hinkley on Wednesday June 15, 2016 @10:31PM (#11913551)
Oops! I found a different video that shows three spark plugs. I'm not sure what was going on with the first video I watched.
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