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Cant get it close enough to start the tiller to adjust it...

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Set low speed jet to 1 turn, highspeed jet 1and a quarter this should start ya off tweek from there.

Posted on Sep 27, 2010


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How do I adjust the carburetor on an Ariens 5020 tiller, model #901016, with a 5 HP Tecumseh engine?

close the needle valve completely, then back it off 1.5 turns. Adjust from there for most efficient fuel usage.

May 04, 2015 | Ariens Rear Tine Tiller 17 901028

1 Answer

My troy-bilt 8hp tiller starts and runs good but after about 3 minutes of tilling it dies

Could be a number if things..the filter may be pluged or restricted the fuel pump if it has one us going bad..or if it does not have a pump..and by what you are saying you might have dirt in the carb bowl causing the float that supplies enough fuel under power to stick. This will let enough gas to start and run but under power essentuliy run out of gas temperarly...the carb will need to be cleaned and adjusted..Hope this helps...good luck.

Sep 16, 2014 | Garden

1 Answer

I just put a new carbuator on my troy tiller pony it is 23 years old ,still hard to start and will no idle very well.

There are many problems with small engines that can make them hard to start. The carburetor is one of them. Make certain that you have adjusted the new carburetor correctly. A good place to start is 1 1/2 to 2 turns counterclockwise from the closed position on the main fuel adjustment needle. Adjust in or out to best performance when engine is running. Some carburetors also have a fuel adjustment needle for the idle mixture. Start off with 1 to 1/2 turns counterclockwise from closed and adjust in or out to best idle performance. Other potential problems include bad spark plug, ignition system (points and condenser in your unit?) and a defective intake and/or exhaust valve.

Oct 29, 2013 | Troy-Bilt Garden

1 Answer

I would like to know what the factory high and low settings are on carb mantis 2 cycle there are no plastic caps on my jet screws and need to know how many turns out ...

After seating the screws back them out 1 1/2 turns. This should be close enough to get it started. Let the motor warm up a little then, with it idling, turn the low screw in until it starts having a hard time running then back it out until it idles smoothly. Prop up the Mantis so it can run at full speed safely while you adjust the high side. With the throttle wide open, again turn the high screw in until it starts running roughly and back it out until the motor is running smooth. Some say to turn the screws out until the motor starts having a hard time running and then turn it back in half way to where it was running bad at the other end. This doesn't work as some engines don't care how far open the screws are.

May 26, 2011 | Mantis 2-Cycle Tiller

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Just bought an older Mantis 2 cycle tiller. The tines engage when the tiller is started. Of course that makes it hard to start with the tines on the ground! I don't believe it was doing this when I...

if the idle is too high the tines wont stop due to the tiller tines are run by a "centrifuigual clutch" which means when you increase the throttle speed the tines will start to turn : there are 2 adjustments you can try,1) adjust the idle screw under the carburetor where the throttle adjustment and a triangle piece of metal touch(your throttle cable wire will be attached to this triangle) ,if the triangle and idle adjustment don't touch and there's a gap between these 2 pieces close the gap by adjusting the 10mm adjusting nut,this will correctly set the idle #2) adjust the idle adjustment screw talked about above till the tines dont turn with throttle set at idle or lowest speed setting

Mar 26, 2011 | Mantis 2-Cycle Tiller

1 Answer

My Mantis tiller is 9 or 10 years old. I've recently had the carburetor replaced but this year the tiller won't idle. The tines want to turn and you have to hold in the air to start it and move it to the...

My name is Dane and I am going to assist you in solving your problem.

You should have an idle screw adjustment on the carb to adjust the idle RPM. As you pull the trigger, watch on the carburetor for a small moving plate. The idle screw should touch that plate. Be very careful, and have someone hold the tiller and start it. Back off the screw just enough until the tines stop turning. I hope I've helped. If you found this reply useful, please leave me some THUMBS UP, if you feel I've deserved them. Thank you! Dane

Dec 06, 2010 | Mantis 2-Cycle Tiller

1 Answer

Adjusting mtd carb. i there a set turns for the adjustment screws

Basic screw adjustments to start with are 3/4 of a turn from the farthest "in" setting. Don't tighten down on the screws too hard, turn down just enough intil they stop, then turn out from there. After engine starts, you can fine tune the idle speed and then the high speed crews.

Feb 18, 2010 | Mtd Products Yard Machines 158CC Tiller

1 Answer

Engine have no power and some it dead

Please check your fuel mix and spark plug. Your needle valve may be out of adjustment (carb adjustment). "Default" setting is, from closed, open it 1 and 1/2 turns ... start the engine, let it warm up and then fine tune the needle valve while at idle.

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Dec 03, 2009 | Mantis Tiller

1 Answer

Runs only with the choke more than halfway closed

adjust the carburator, it is running to lean.

Jun 17, 2009 | Mantis 2-Cycle Tiller

1 Answer

Mantis tiller 2 cycle seemed as if it was running out of gas

Check fuel filter and lines, if thay are good I would get a carb kit and set the adjustment screws at 1 turn out from lightley seated to start. Don't lean high speed screw too much.
You might check muffler & cylinder port for carbon first.

Mar 20, 2009 | Mantis 2-Cycle Tiller

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