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#1
02-08-2019, 06:50 AM
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127 stalling
I have a Cub Cadet 127 that I have owned for a couple years. I bought it from a fellow that had no information about any service or repairs it has had.
I installed new genuine Kohler points and carburetor kit. Set the points and adjusted the valves and governor. The engine starts effortlessly within 1 or 2 seconds at any outdoor temperature. It idles great and will run all day at 1/4 throttle or less. But if I move the throttle past 1/4 position the engine speed will increase, run for 30 seconds or so and die. The more wide open I move the throttle the faster the engine stalls out. It refires and runs great the instant the throttle is lowered and I hit the key. I bushed the carb throttle shaft, rechecked the float and rechecked the intake and exhaust valve setting. I have not pulled the cylinder head so I don't know the condition of the valves etc. Any advice would be greatly appreciated. Thanks DL127 
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#3
02-08-2019, 07:49 AM
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Try enriching the main jet screw 1/2 turn and see how it acts after you check the fuel flow as suggested.
Also, many times a piece of foreign material ( IE.fuel line hose) will become lodged in the fuel inlet fitting at the carb that leads to the needle valve. Does pulling the choke help? Another thing comes to mind: A bad condenser can and will allow an engine to start normally and idle at slow speed all day long, but when the throttle is advanced, it will not rev up and will act like a fouled plug/missing/sputtering. 
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#5
02-08-2019, 12:59 PM
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I replaced the condenser at the same time I replaced the points. I fabricated a stainless steel gas tank from 4" pipe, removed the settling bowl and installed new tubing, an inline fuel filter and petcock. I'm stumped. It has done this stall out thing since day one. When I rebuilt the carb I dismantled it and ran it through an ultrasonic bath cleaner and blew compressed air thru every port or hole I could see. I'm convinced it's fuel related as well but other than out right replacing the carb I don't know what to do. The only ignition part I haven't replaced is the coil. I haven't tried pulling the choke before it stalls. I will try opening the high speed screw 1/2 a turn.
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#6
02-08-2019, 01:51 PM
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Again, it is a FUEL issue.
Try running the tractor with the Gas Cap off. See if it is a "venting" issue.
__________________
Roland Bedell CC Models: 100, 105, 1450, 782, (2) 784, & 2072 Buy: Made in the USA 
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#8
02-09-2019, 06:33 PM
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Agree with R laruse
I would try a piece of hose straight through without the filter to eliminate this first. There is a difference filter to filter. if the filter has a check valve in it may require a fuel pump to flow, and gravity may not be enough to open it. Won't really cost you anything to try. if that's the problem investigate a free flowing ( gravity fed) filter
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__________________
Gary 1974 1650 50A "budscub" Was my fathers 1969 125 42" 1978 1450 44A dual hydraulics 1984 782 50C dual hydraulics, waiting for vanguard Z-force Cub cadet Zero turn Sears '66 Suburban 10 Sears '66 Suburban 12 2 Breaking plows, 2 disc's, front blade, rear blade, Sickle bar mower, 2 decks 3pt harrow 74 "Green 100 "John"
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.
MTD Products, Inc. of Cleveland, Ohio purchased the Cub Cadet brand from International Harvester in 1981. Cub Cadet was held as a wholly owned subsidiary for many years following this acquisition, which allowed them to operate independently. Recently, MTD has taken a more aggressive role and integrated Cub Cadet into its other lines of power equipment.
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