I've pretty much done rebuilding an SP2. Got it started and took it around the block just to see how it felt. It's bone stock, nothing special. When I got up some speed it stuttered/jerked a few times like me gassing then letting go and gassing again. At slower speeds it felt normal. At this point, I'm just assuming the PAIR system? I took off the vacuum tubes but not the actual unit in between the heads and haven't plugged up the plates. Could this be the cause? Or is there something else that could be wrong? I am disassembling and gonna take the whole system off.
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