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Old 02-24-2020, 08:25 PM   #21 (permalink)
ticedoff8
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In the YT video, at timestamp 1:02, it looks like you are adding an O-ring or washer under the plate that blocks off the YS regulator.
Any idea on the specifications on that (material, diameter - etc)?

About the 120SR-X:
Is the Velocity Stack "nice to have" (aka: Bling) or is it mandatory?
If one decides to leave off the velocity stack, does it effect performance?
And, if leaving off the velocity stack has no effect on performance, does the crankcase still need to be machined so deeply?

Also, in picture IMG_5296, it looks like you machined off the bell-opening on the top of the velocity stack.

Is that because the fluted end of the bell is too large a diameter and would require deeper cuts into the crankcase?
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