Changing T20 Fluid and engine tuneup

[collij]

Hi All,
What size wrench do you need to undo the T20 ATF bolts?
Also, Does any one have tips on how to adjust the carburetor on a Tecumseh motor, circa 1970s I believe (diagrams would be awesome). I got it started once, but now it just turns over ;-(
John

[bigmandengo]

9/16 i believe

[Amphiman1]

tech

could be a stuck float...or junk in the carb?.