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I just bought a Cub Cadet trimmer from Tractor Supply that was returned because the 1st owner said it didnt run. It runs and it is stong, but it will not idle. I adjusted the idle screw all the way down but no change. I am using 50:1 premix fuel. Is there any other adjustment to make it idle or do I need to return it? The only reason I bought it was because I know the brand should be top quality since so many landscapers use Cub CAdet and they marked the price down so I thought I was getting a good deal.

Crud on low speed (idle) needle seat? Will the idle needle come out for inspection?

motoman said:

Crud on low speed (idle) needle seat? Will the idle needle come out for inspection?

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The only adjustment I found is on the top of the carburater which is a screw that pushes on the throttle lever.I have to keep it at at least half throttle to keep it running

Take out all of the old fuel and mix a new lot at 40-1 specifications say it should be 40-1 maybe it doesn't like the 50-1 mix, and I know a lot of people use 50-1...but..!

Manual says .Checking the fuel mixture, cleaning the air filter and adjusting the idle speed should solve most engine problems, if not and all of the following are true.
. the engine will not idle
. the engine hesitates or stalls on acceleration
. there is a loss of engine power
Have the carburetor adjusted by an authorized service dealer.

There are two adjustment screws on the carb that take a special tool the end looks like a D. You will have to adjust them to get it to run right.

I have two of them. Had to adjust carb on both to get them to run just right.

jekjr said:

There are two adjustment screws on the carb that take a special tool the end looks like a D. You will have to adjust them to get it to run right.

I have two of them. Had to adjust carb on both to get them to run just right.

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Where can I get one of these tools?

bigbzc said:

Where can I get one of these tools?

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I ordered mine from Amazon. I have read you can get a piece of small copper tubing and tap it down over them and then take it off and bend a handle on it and it will work as well.

For a home owner these are great trimmers. They have what a 3 year warranty. On the other hand for a commercial guy they have no warranty.

bigbzc said:

Where can I get one of these tools?

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If the adjustment screw heads are "D" shaped go in this forum to the thread "trimmer spark and speed tool diy" and make one. Or spend $25 on line.

Ok so I made a tool out of a tire valvl stem and got the trimmer to run right so that makes me very happy. I would still like to purchase the actual tool though for future adjustments. Does the tool have a specific name? All I have found is a "double D" tool. If anyone knows of a website with it please copy and post me the link. Thanks for all your help guys.

Made out of a tyre valve....! Patent it quick....:licking: always nice to have feedback thanks, and well done.:thumbsup:

bigbzc said:

Ok so I made a tool out of a tire valvl stem and got the trimmer to run right so that makes me very happy. I would still like to purchase the actual tool though for future adjustments. Does the tool have a specific name? All I have found is a "double D" tool. If anyone knows of a website with it please copy and post me the link. Thanks for all your help guys.

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I saw a couple about 6 months ago on line , amazon, I believe. Spend if you want, I have found the adjustment very stable so the tool will collect dust.

Take a dermal tool and cut a slot and use a screwdriver.
Or just go to a shop and have them adjust it for max power. $10

(( cowboy up and get over it ))

Carscw said:

Take a dermal tool and cut a slot and use a screwdriver.
Or just go to a shop and have them adjust it for max power. $10

(( cowboy up and get over it ))

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The screws are well recessed itno the carb making it difficult to get a dremal in there without messing up the body of the carb. But thats a damn good idea lol!

I once saw a "how to" where the adjustment is made after epoxying a small nail to each "D" head (?crazy glue?). have not tried it