Question about Yard Machines 155 Torque Briggs Stratton Riding Lawn Mower (NonCARB Compliant) 13AM772F000

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Model - 21a-340-120 serial #1j139k50105 mtd rototiller carb #214706t-p2 3648 1589, has a spark,has gas to carb, but spark plug is dry? it will start if starting fluid is sprayed directly to carb, but only will run for afew seconds.[ carb has been cleaned, their is no adjustment screws.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 33 Answers

SOURCE: I can't start my

The carburetor jets are plugged. Complete disassembly & soaking in carburetor cleaner then re install parts after rinsing off & drying them. Make sure all ports are open. Torch tip cleaner is helpful.

Posted on Sep 10, 2009

damnor01
  • 1179 Answers

SOURCE: I have a Yard Machines

Air is not getting into the engine, clean the air filter. Or it may be due to a fuel blockage in the pipe. I would clean the air filter and the carberator.
First try just the air filter, you may just get away with it ey! Won't be too much work.

Take care!
damnor01

Posted on May 29, 2011

kel1guy2002
  • 3740 Answers

SOURCE: My mtd(11A-54MC552) lawnmower won't start. changed:

The Flywheel has a brake and switch assembly on that is item 8 of this link: http://www.ereplacementparts.com/mtd-11a54mc006-2009-push-walkbehind-mower-parts-c-20039_20100_133234_21459.html#part_343018

The switch is made or unmade by the position of the user safety bar on the handle. When the cable between the handle and the flywheel safety brake wears or needs adjustment the safety switch continually grounds the ignition so there is no spark. You may have to adjust the user safety bar cable at the engine flywheel brake switch area by losending the mount screw and moving the cable jacket further away from the switch. Then re-tighten the mounting screw.

If this is the first start of the season you may have to remove the carb float bowl as shown on the bottom of item 14 the above link to clean out the jet orifice in the threaded area of the carb. Make sure you remove all debris in the carb float bowl area. You should also have fuel flow anytime the float is positioned below horizontal.

If none of the above corrects the problem respond here and I will help you.

Thanks for choosing FixYa,
Kelly

Posted on Jun 10, 2011

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1 Answer

MTD lawn mower won't stay running.


Did you empty the carb bowl and clean out any old fuel & contaminants? This is the most effective way to determine fuel issues. It also gives you the opportunity to remove all old fuel from the fuel lines, filter, & drain the tank bone dry. You may have already introduced water from your previous efforts so take out the plug & pull the cord a few times to dry out the cylinder. Next start the first time with starter fluid since you may still have contaminants in the primer system. In the future use only non-ethanol fuel, a marine grade stabilizer such as "Sea Foam" and replace all fuel every spring. Fuel begins to varnish and break down after 1 month unless stabilizer is used. Ethanol gas absorb water from the surrounding air in about 2 months & only gets worse.

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Handle on pull cord came off and cord went inside,


pull spark plug then pull cord see if fluid comrs out.if so check oil level,if over full see if it smells like gas if so you have a bad float in carb or dirt stuck in needle and seat in carb if all is good could have sheered flywheel key or if over head valve engine(has valve cover) valves may need to be adj or compression release mechanism in side engine broke. todays engines have very high compression and will not turn over without release. hupe this helpl

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2 Answers

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Several questions here...

1. Is the oil serviced to the full mark?
The oil level sensor can cause a no spark condition because it grounds the ignition.
2. Is there spark at the spark plug? You can remove the spark plug and test for spark but if the plug is internally grounded it will show spark when removed but if it is installed it can still be defective. (Spark Plugs are cheap replace it)
3. Is the handle safety cable loose even when depressed? A bad safety cable or an improper cable adjustment can also cause a lack of spark.
4. Do you note gas on the spark plug or is it very dry? If the spark plug is dry try adding a splash of gas into the cylinder via the spark plug hole and see if you get a temporary / momentary start. If you do then you have either a fuel supply or carb problem.
Make sure the fuel selector is in the ON position.
5. If you suspect a fuel problem disconnect the tank feed line to the carb and see if there is fuel flow from the tank, No fuel flow no start.... then problem in the gas tank or supply line.

I will post this as a solution but will watch for any responses and continue to assist you if needed.

Thanks for using FixYa.

Kelly

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THERE IS NONE ITS A GRAVITY FED CARB, THE CARB NEEDS TO BE CLEANED. IF YOU DO IT YOUR SELF TAKE PICTURES SO YOU CAN REASSEMBLE IT !! THE FLOAT IS STUCK. THATS WHY YOU ARE NOT GETTING GAS.. IF'N I WAS OF HELP PLEASE VOTE..JAY

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Try this site it is called manuals online . Should find what your looking for , Free.

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Have a 2002mtd front tine m.n.#21A-333 A129 just bought its been sitting in garage for 4 years. Cleaned out gas carb ect but starts for only a min then quits. Help...Thanks


It's still in the carb. Needs to be cleaned out really well, all the jet and orifices cleared. Soaking in carb cleaner for several hours and blown out. Also, depending which carb you hsve, it may have a rubber seat that will deteriorate and swell, cutting off gas supply. If it has a rubber tipped needle, that does not apply.

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1 Answer

I need a manual for my MTD Huskee 5hp rear tine tiller. Model # 21A 410 131. Briggs and Stratton motor. 18'' tilling width.


I went to MTD web site and they had all the manuals for all there products. You will need a model and serial number to get them. Thank you for responding back to me.
I got the manual for the tiller and the engine.

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1 Answer

We have a mtd yard machine roto tiller model 21A-340-06295208


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