Are you testing the movement of the oil pump arm by twisting the throttle with the bike off? I don't think it will move much because the cable is also pulled by the servo motor for the power valve. You need more oil at more RPM.. not so much with more throttle opening. Does this make sense or help with your question? I don't know much about this but maybe someone else can feed off of this. Please, someone correct me if I am wrong...
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mchadwick@charter.net