I don't know if its the HRC cabling or the PGMIII but on my 1993 SP, the RC valves do not react as in the test description, can't remember exactly but they move the opposite way as described, when I remove the carb sensor, but they work normally during running.
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Poul
"If Life Gets Boring, Risk It!"
MC21SE, KISS box
MC21SP, HRC box, racing loom