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Join Date: Jul 2006
Location: Kennett Square, PA
Hey, Kirk - I'm wondering if your cables aren't a little tight now. On a stretched cable (your old one), the way to get the cable to work was to back off the locknut up by the RH controls, back OUT the adjusting barrel, and then close down the locknut again. With a new cable, you might want to make sure that up by the RH controls, everything is turned in as tight as can be - and then loosen from there. The higher rpms suggests that maybe you're running with the throttle just a tad open. And the closing cable shouldn't really improve performance so much as just provide a back-up plan for when the open cable goes wonky.
Sorry, one more thought: down by the carbs, with a new cable you want the end of it (the threaded part) to be IN the throttle plate as far as possible. Then, as the cable stretches, you'll loosen the locknuts and turn OUT the cable to tighten it up again. So check that, too.
And if I'm not being clear, holler and I'll take some pics and try it again.