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Old 08-31-2022, 12:07 PM
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mazzbob mazzbob is offline
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Join Date: Aug 2021
Location: New York
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Default 3600 RPM Falls on Cub Cadet 1450.

Cub Cadet 1450 RPM not holding at 3600.

The Tractor has Walbro Carburetor with the original linkage. The issue I am having is the Throttle Control (TC) will not hold at the highest RPM (3600) when pushed all the up on the dash. The TC slowly pulls back down, when running, whereby the engine RPM drops down if I do not hold the TC in place.

I am not sure, if it is the way the linkage is setup or if the TC is the at fault. It seems the Carburetor opens up all the way when the TC is at around ½ way, on the dash. The governor spring is not pulled at that point. Only after, the lever is pushed all the way up on the dash, which allows the Governor Spring to be pulled, allows engine to reach 3600 RPM. The Engine does not reach 3600 RPM unless that governor spring is pulled (I am not sure if that's the way it's supposed to work). If I do not hold the lever in place, the spring pressure pulls the TC back down which lowers the RPM.

Any Help would be appreciated! Bob.
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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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