"Bob" wrote in message
After I got it all back together I started it up and it ran decently for a
few hours. But then it started to run worse and worse. I bought a new
carb for it and installed it tonight but it obviously wasn't the problem.
Even with the new carb and with fresh gas it will only run with the choke
all the way on. The new carb doesn't have an idle adjustment screw so it
seems like it can't be a fuel problem. What else could it be? The only
thing left is spark and compression. It obviously has both of those
because it runs and had plenty of power when it was running OK which
indicates compression is probably OK. I made sure the gas cap isn't
blocked.

If it runs with the choke on, it must be not getting enough fuel. Have you
checked
for intake leaks, loose carb, etc. Crud in the tank could have plugged a carb
jet.

Have you checked the fual line?

Bob