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Old 07-18-2015, 05:28 PM
Darrell Darrell is offline
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Join Date: Mar 2009
Location: MO
Posts: 437
Default M18 Problem

The M18 in my 1811 has started having a problem and i am hoping maybe someone else has had the same problem with an idea to fix it.

After i run my 1811 for about 15/20 minutes or until it heats up really well , the rpm's drop on it. Just by ear , i would say it is like going to WOT and dropping it down to 3/4 throttle or somewhere in between.

Not sure about the hrs. on the tractor.

If you let it cool off and start it back up , the RPM's are fine until it heats up again and it loses RPM's again.

The throttle lever isn't moving , and the clamp that holds the cable is tight.

Maybe the governor ?? ( I hope not !! )

Maybe the coil ?? The few times a Mag went bad on me , the tractor wouldn't start again until it cooled off. I have replaced the coil once with an aftermarket coil , i would say less than 200 hrs on it.

Something getting hot and expanding ???

Vapor lock ????

I am going to be tearing it apart to replace the starter , hydro stuff , rebuild the deck , etc....

Hoping someone has had the same problem and maybe a fix or an idea where i might look. I know it could be several different things , but maybe someone else has had the problem.

Thanks !!!!!!!!!!
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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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