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Old 05-12-2021, 04:22 PM
Rvr350 Rvr350 is offline
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Default Surging with no load

Newbie here:

I have a two year old Cub Cadet LT XT1 Enduro series riding lawnmower. It's been running fine. On my recent outing, i had to punch the PTO off suddenly to avoid an obstruction, and after that, the engine has been surging with the PTO disengaged. When the PTO is engaged, it runs smoothly. It seems the higher the throttle setting, the less surging it exhibits.

I have taken out the carb, and clean the needle and jet, fuel is flowing freely. Spark plugs seem to be in ok shape. What else i could check? Thanks.
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Old 05-13-2021, 08:37 PM
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guyina4x4 guyina4x4 is offline
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You need to find the other jet, there are 2 and clean it out.
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Old 05-16-2021, 07:16 AM
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ironman ironman is offline
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Quote:
Originally Posted by Rvr350 View Post
Newbie here:

I have a two year old Cub Cadet LT XT1 Enduro series riding lawnmower. It's been running fine. On my recent outing, i had to punch the PTO off suddenly to avoid an obstruction, and after that, the engine has been surging with the PTO disengaged. When the PTO is engaged, it runs smoothly. It seems the higher the throttle setting, the less surging it exhibits.

I have taken out the carb, and clean the needle and jet, fuel is flowing freely. Spark plugs seem to be in ok shape. What else i could check? Thanks.
Check for clogged air vent in fuel tank cap.
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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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