Posted by Red Mercury on January 30, 2013 at 21:52:27 from (204.112.14.193):
I have a WD-9 that starts very well on gas but it runs very fast (1500+ RPM) which is not normal. It has been this way as long as I have had it so I decided to clean up a spare carburetor and swap them. When I took the old carburetor off the mystery was solved. It appears that the air valve (round disk) and spacer have been removed as well as a couple of other modifications. I then decided to dig deep into my spare parts and found two more WD-9 carburetors that have had the same modification. It appears that this was done to make the engine run faster and possibly start easier on the gas side. I did install my refurbished carburetor and now the tractor runs much slower on the gas side (normal). Is anyone familiar with this modification? I am wondering if it was done many years ago by a local IH mechanic in my area since I have several carburetors on hand with the same modification.
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Today's Featured Article - Memories of an IH Super A When I was ? up to 10, I worked on my Papaw's farm in Greeneville, TN every summer. As I grew older (7), it was the thrill of my day to ride or drive on the tractor. My Papaw had a 1954 IH Super A that he bought to replace a Cub. My Papaw raised "baccer" (tobacco) and corn with the Super A, but the fondest memory was of the sawmill. He owned a small sawmill for sawing "baccer" sticks. The Super A was the powerplant. When I was old enough (7 or 8), I would get up early and be dressed to
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