Not Ranked
That's odd. Why didn't they do it up down down up like most 4 cylinder cranks? Then you don't need nearly as much counterweight as 1 and 2 balance each other and 3 an 4 balance.
As the rough forging is, there's a bit of a wobbly vibration that can be eliminated by doing it the other way.
I didn't notice the crank at first glance.
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