Homrich,
thanks for the suggestions, I'll check again for leaks. I went ahead and put a rebuild kit in the carb and that improved it some but it still isn't right. I ran two tanks of fuel through it last night trying different tuning and throttle setups. If I set the low end extra rich it acts better. If I pull it from full throttle to idle it goes to a low idle speed but if I ease it down then it goes to a high idle. I don't think the linkage is binding but I'm going to absolutely eliminate that possibility next.
james