Hello.
I have a Harry Ferguson TO30. I had the carb rebuilt after setting for a couple of years (gum deposits from the gasoline). I now have it back in the tractor, but I have to choke it a little to keep it idling. When I tried to mow a field with it, I also noticed that I had to gradually adjust the choke open even more to keep the tractor from sputtering. In looking at it afterwards, I noticed that the large adjustment screw on top of the carb doesn't turn in a circle. It turns in more of an ellipsis (like the screw inside might be bent), and only turns about 3/4 of the way around before it hard stops. Is this normal? I haven't tried to adjust it before.
I am wondering if I should
A- take this carb apart, fix the large adjusting screw and reassemble,
B- replace this carb with a new Marvel Schebler or
C- replace this carb with a Zenith (which I found online saying that it was a better performing carb than the original). This is still a 6 volt system, and not used too often.
Thank you for any information!
I have a Harry Ferguson TO30. I had the carb rebuilt after setting for a couple of years (gum deposits from the gasoline). I now have it back in the tractor, but I have to choke it a little to keep it idling. When I tried to mow a field with it, I also noticed that I had to gradually adjust the choke open even more to keep the tractor from sputtering. In looking at it afterwards, I noticed that the large adjustment screw on top of the carb doesn't turn in a circle. It turns in more of an ellipsis (like the screw inside might be bent), and only turns about 3/4 of the way around before it hard stops. Is this normal? I haven't tried to adjust it before.
I am wondering if I should
A- take this carb apart, fix the large adjusting screw and reassemble,
B- replace this carb with a new Marvel Schebler or
C- replace this carb with a Zenith (which I found online saying that it was a better performing carb than the original). This is still a 6 volt system, and not used too often.
Thank you for any information!