Will only run with the choke on all the way.

Fish

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let's try it this way..
 

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Kcsguide

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I pulled out the needle valve (117) and stuck a wire in to clean it out and reinstalled and the results were the same. But that's what I expected because when i cleaned the carb I cleaned it, then soaked it in carb cleaner, then blew out every orofice with compressed air and used a wire as well, so I doubt there is a speck of anything left in it. It also has a brand new inline fuel filter installed. But thanks for the suggestion.
 

Fish

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I pulled out the needle valve (117) and stuck a wire in to clean it out and reinstalled and the results were the same. But that's what I expected because when i cleaned the carb I cleaned it, then soaked it in carb cleaner, then blew out every orofice with compressed air and used a wire as well, so I doubt there is a speck of anything left in it. It also has a brand new inline fuel filter installed. But thanks for the suggestion.

How did you "pull" it out?
 

Kcsguide

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I unscrewed it (ccw)
 

Kcsguide

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Sorry I took so long to update this but I received and installed the carb kit and ended up with the same results. Then I adjusted both adjustment screws, testing each setting as before with the same results. The only thing that I did not replace was the metal seat (needle and seat). So after the above experimentation I went back in to replace it. The instructions said to tap the old seat, thread a screw into it and pull it out. I could not get it to budge. I hadn't dinged up the seat, just the sides when I threaded it and the needle still moves freely so I put it back together and reinstalled it and ended up with the same results. And since you're wondering, yes, I am positive that the fuel pump is put together properly and now has all new diaphrams, gaskets, springs, etc. I have tried adjusting the tang on the float that pushes the needle up into the seat slightly both ways, again with the same results. They won't sell just the upper carb body, they say you have to buy the whole carb at $155 bucks! I don't think so... Anyone have any better ideas on how to remove the old seat?

Still scratching my head on this one!
 

Kcsguide

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Ok, I was able to remove the old seat and installed the new one. I referenced a shop manual that said to adjust the tang on the float so that the float is level with the carb body when held upside down. I did that and then reinstalled it on the tractor. Same results! When I advance the throttle to the point where it starts to die, if I pull on the choke, it will keep running. A choke increases the vacume which sucks in more fuel so I'm thinking that it's not getting enough fuel and I again tried backing out the needle valve a half turn at a time till it was 6 turns out and wouldn't run anymore. I did replace the inline fuel filter with one that is physically smaller than the previous one. Is it possible that it is restricting the fuel flow? Any ideas?
 

Kcsguide

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Update, today I removed all of the fuel lines and fittings. They were partially blocked. After using an air compressor and a garden hose, then the compressor again, I got them completely cleaned out. The fitting at the bottom of the fuel tank was pretty bad but I replaced it. It started up instantly! It had been hard to start before. But, when I advanced the throttle, it tried to die just like before. I adjusted the screws like before but got the same results. I also drained the tank and put in fresh fuel. I guess I'll go back and start over from the beginning.
 

Fish

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What about the jet that required the allen head wrench, what size wrench was it?
 

Kcsguide

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Hold the phone! I never ran across one like that. Do you know where it is suppose to be? I didn't see it on the parts diagram for the carb. I'll go take a closer look. Thanks for the heads up.
 

Kcsguide

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Ok, problem is solved. I removed the carb and completely disassembled it again. As I again ran a wire through every port and blew them out with compressed air, I removed the needle valve, (high speed air screw) and looked in the hole with a flashlight, there was no hole! I don't know how I missed it the first two times but it was so packed with dirt that I had to work it with a wire for quite a while before I broke through. I finished cleaning it out, reassembled it, installed it on the tractor and it now runs fine. Thanks to everyone who offered suggestions and advice.
 
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