I checked the butterflies and gasket - (found that problem early on and as I tighten the carbs down I work the throttle open and close to make sure it is not interfering (thought I had a throttle stick and that was the culprit after junked base plate. I will check actual cable travel - that would be almost funny but I have not done that yet....I will replace the diaphrams too - maybe go to a stiffer spring.