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That sounds like the engine is out of time - spark happening but the intake valves are still open.Jeez, warn me if you're gonna send arousing photos while I'm working.
Okay, tried ether again today. Still no start, no change in engine behavior, but did get some flames out the throttle.

I...I have done that weeks ago. Multiple times.You want to pull the timing covers and verify the crank and cam sprockets are timed together like they should be. I would have done this weeks ago.