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farmall c running problems followup

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farmallboy15

Member
Well the tractor is put back together. The carb soaked for a couple days. Cleaned it up, blew it out, put it back together. The tractor starts right up, runs good, doesn't stumble. It just revs to high. At an idle it seems like it should be half throttle. At full throttle it seems way too fast. Any ideas? The idle adjustment screw didn't seem to make any difference in running. Thanks for the help.
 
Gov to carb linkage hanging up or the gov it self is bad. Or springs broken or hooked up wrong
 
Take the linkage off the governor arm & have someone start the tractor while holding the rod forward. It should be at an idle. If not it is in the carb. Otherwise the governor or linkage needs attention.
 
That's kind of what I was thinking... ill take the linkage off and see of it idles down with just the butterfly and see about adjusting the linkage.
 
Start up up and have the throttle set as low as you can. Then grab the carb linkage and try to bring the RPM up. The gov should fight you when you try doing that. If it does not then you have it hooked up wrong or the gov has problems
 
Did you have the throttle plate off? Our SMTA carb was worked on by one of the mechanics at the dealership, & he got the throttle plate on backwards. Wouldn't idle down---which isn't your problem, but if all else fails, would be worth a look.
 
You need with engine off remove the pin on the clevis on the rod going to the carb. Now open throttle and adjust clevis so the pin goes back in. This sets throttle for response when the throttle lever is moved. If the input shaft-lever on the gov has a lot of slop response will not be the best for engine RPMs but it will allow engine to idle and run full throttle. The cap screw on top of the gov housing is for fast RPMs or wide open throttle. If the bumper adjustment at the bottom ov the gov housing it can affect idle speed providing he screw on the throttle shaft is adjusted for low RPMs. It is also possible for the lever assy on the throttle shaft to be loose. Another thing to check if the throttle doesent give any adjustable RPMs would be broken gov spring. So you do have some things to check out.
 
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