I experienced a sudden loss of power and acceleration today. Engine seems like it is laboring most of the time. Acceleration is about like a Honda 305. It starts fine, idles fine, takes off and cruises at 60 but feels like it's lugging all the time, acceleration is terrible, opening throttle completely accelerates, but just barely. I went to pass someone this morning, down-shifted to 4th at about 55, and had trouble getting around them. At one instance - after stopping for about 15 minutes - it seemed OK for a few minutes, then the behavior returned. I dropped the bowl off the bottom of the carb and no signs of any crud.<br />
<br />
I have to think this is a sensor or electrical problem of some kind - seems like it's not getting any timing advance - I compare it to and older car with vacuum advance distributor with the vacuum disconnected. Runs fine - just no power. I can still drive it - but it's borderline embarrassing it's such a slug. Applying throttle make a little more noise but doesn't do much else.<br />
<br />
Any clues on where I should start looking?
I'm thinking an intermittent electrical connection, but just don't know where to start.