My son has a 1943 A on steel we fixed up a years ago. It sits in the yard for a lawn decoration. We started it up and put it on the post pounder the other day and the governer is slow to respound. We ran it for 6 hours, the temp was on 180. The rod to the carb is 1/2 hole short like it should be. Two years ago I started it up and it took about about 1/2 hour before it would rev up with the throttle but the governer was slow then too. It will start hand cranking it with lots of choke and 1/4 throttle. Would it be the weights or pins are worn? I hate to take it apart to find nothing wrong inside.