Question about Mtd Products Yard Machines 158CC Tiller

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Tiller will turn over but won't start

Was running it quit and won;t start. new spark plug in it and also cleaned filter and gas tank. put fresh gas in it. It fires but still won;t start. Mtd model# 216-340-062

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Posted on Jan 02, 2017

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SOURCE: tiller won't start

Remove the airfilter and take a look at it. If it is dirty or has a lot of oil in it, that would explain why you can't start the machine. If that is the case get a new filter and you will be up and running.

please mark this answer as a fixya. thanks

Posted on Mar 18, 2009

  • 398 Answers

SOURCE: I have a bolens rear tine tiller that will not

is the fuel filter clogged? you may need to check the engine compression for bad valves or rings.if the compresion is off it wont get gas . check the fuel filter first though and keep me posted.

Posted on Apr 24, 2009

  • 15 Answers

SOURCE: Tiller won't stay running sounds like restricted fuel flow to me, but explain "rebuilt the carb" so I can get an idea on what you did.

Though it sounds right off like you whooped it good and got the basics.

Right off, go back through the "system", check the fuel flow, check that spark on the plug. Eyeball for any loose wires (E.G., Kill Switch, etc.) that are grounding (you never know!)

Stick to KISS on this one, since it ran before the carb got bad and got rebuilt, it will be one of those things you replaced, rebuilt, or changed. Sometimes, it is the SMALLEST thing......

Posted on May 28, 2009

  • 202 Answers

SOURCE: My tiller starts and runs it also turns the

sounds like a belt or clutch problem. you didnt give enough info to look up the tiller.

Posted on Jul 07, 2009

  • 496 Answers

SOURCE: Yard-man model 12a-979L401 won't start (9 years old)

My dad always taught me, rest his soul, that basic 101, if you have gas getting to spark, SOMETHING out to happen.
I'll ask a series of questions and propose some possible solutions. Hopefully we'll crack this mystery. Warning, this might be a tad lengthy... ha
1. Is the spark plug firing?
To check the coil that sends spark to your spark plug and the plug itself:
You can remove the spark plug from your engine and reconnect it to the spark plug wire while it just lays on your mower. pull the starter rope (make sure you're holding down the kill lever on the handle). Look at your plug end as you pull the rope.
Got spark? If yes, go to the next step, flagged ***. If no, look at the end of your spark plug that would go into the engine. The "L" shaped finger should be gapped from the small circular shape on the plug... this is the "gap". Your manual may provide specs on how wide this gap should be. If there is no gap, your plug won't work properly. The "L" shape is a soft metal and can be bent... create the proper gap. Try the test again to see if the plug is sparking. If not, you may have an issue with your coil.
***Yes to spark. Let's look at the gas issue now. OPTION 1. I will tell you that in my experience, water in gas is a major culprit for a mower not running. You've replaced all the filters... good.
I'm not sure of your mower, but most models have a "bowl" bolted to the bottom of the carburator. Sometimes moisture can get in the gas, get trapped in the bowl and won't go away or won't allow gas to get to the spark. Loosen the bolt... it's ok if gas from the bowl spills from this, the bowl doesn't hold much gas and it won't drain your tank. Plus, this means your carbuator is allowing the gas from the tank to the bowl. As you are looking at the gas spilled on the mower deck, see if there are beads of water in it. As you know, water and gas doesn't mix. This would be a tell tale of the problem. I would carefully remove the bowl from the carb and wipe it dry, then reassemble the bowl.
To be on the for sure side that you have no more water in your system, you could disconnect your fuel line from the gas tank and drain it out. Use a jar or container... you can see water in the bottom of it. You can reuse the gas too... just don't include the water!
OPTION 2. If your carb and tank are now H2O free and you're still getting to results, you may have a clogged jet on your carburator. This little pin-hole passage allows gas to pass through to the spark. Sometimes a mower sitting up a while, can cause a laquer effect to gas and it can block this passage. Removal of the carburator from the engine is required and a simple pin can be pushed through this passage to knock a "plug" out.
Geez I hope I didn't miss anything! ha
Good luck to you... I hope it's a quick and easy fix.

Posted on Aug 26, 2009

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1 Answer

Put new gas and new oil in and tried to start. Would stall in few seconds when could start. There is fluid dripping from the filter area

Hi Anonymouse:
I'd be checking to make sure that the correct fluid in the correct amount was added to the correct place.
Start with the oil. Check the dipstick or indicator level. Too much oil will stop the engine. Sometimes gas get accidently put in the oil filler if an inexperienced person is helping with the maintenance.
Gas.......... Make sure that oil was not accidently added to the gas tank. Drain the carb and put fresh gas in the gas tank.
Spark plug.;.... pull and check for fouling. Replace if not really clean. Check for hot blue spark before re-installing.
This should get you back digging up the garden very soon.

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Clean or change air filter. Clean, gap or change spark plug. Empty gas tank add fresh gas with Stabil. When spark plug is removed pull rope several times to blow out cylinder. Spray starter fluid in spark plug hole before replacing spark plug. Clean outside of carb so choke works freely. Spray starter fluid into carb breather hole with air filter removed and try to start. if running replace air filter and cover. If no start disassemble carb and clean. If no start replace carb.

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1 Answer

If you lent your tiller to your "know it all"

While having your brother buy you a new tiller sounds good, it just might not be practical or posible. So drain the fuel from the tank, fuel lines and the carb., clean the spark plug and replace fuel filter if installed. Put the proper gas in and start it, should be good or clear up pretty quick. Hopefully it did not run with the wrong fuel for too long where the spark arrestor in the muffler would get clogged up.

Good luck.

If really helpful, please rate.

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1 Answer

My mantis wqn't start. I have cleaned the fiter changed, the spark plug and put new gas in it.

If it has been sitting for a few months, remove and check your spark plug. If it is wet it is getting fuel. Replace it if worn or fouled but that is doubtful unless you have had it for quite some time. Then get some 100% acetone (Wal-Mart or a beauty supply store) and add a couple of ounces of it to your fresh gas mixture in the mantis fuel tank. This will clean out build up in your carb, etc. Try to start it several times. If unsuccessful after several pulls, let it set for a while. Do this several times until it sounds like it wants to start. Using this procedure it eventually will. This website has a video for detailed instructions to adjust the carb should that be necessary. It is actually quite simple.

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1 Answer

Troy Bilt Rear tine tiller model 643 Bronco, won't start,it ran out of gas, put in new gas and it started but wouldn't stay running. Put in new spark plugs, cleaned filters, changed out gas,still won't...

did it run out of gas when you added gas it could be that the fuel line has plugged up with something from the bottom of the tank take the fuel line off and try blowing threw it and take a air hose and blow out the carb and carb cleaner

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Clean the carb and if this machine was kept outside all winter make sure no water in tank. I realize you stated that you removed old gas but how it was removed is the key. Try the carb thing first though.

Apr 28, 2010 | Troy-Bilt Pony Garden Tiller

2 Answers

Tiller has sat in weater for a year. I changed the spark plug, and found there was water or gas in the oil (lots of it) i drained the oil and put in fresh but now it wont even start. what is my problem or...

You need a few things for a combustion engine to work. Firstly you are going to need to know a little about engines and how they work.
Fuel - try draining the tank and putting fresh fuel in it - fues does go stale. This will include fuel in the carburetor so that needs drained too. There was liquid, assuming water in the oil, perhaps it is in the fuel too.
Fire - do you get a spark to the spark plug? Pull the plug out and see if you get spark when trying to start - remember the earth of the spark plug needs to be touching the grounded metal such as the engine or frame. Perhaps the electricals have been water damaged.
Air - clean out the air filter and surrounds.
You have already drained the oil and replaced it - good start.
Maybe something has corroded since it has been in the weather for so long.
If it still does not want to start, try pulling out the plug & trying to start - is anything spitting out the spark plug hole? If so, what?
Once that is clean and clear and it still doesn't start but you have spark, try putting a bit of fuel carefully in the plug hole, say half a tablespoon.
How does that go?

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is the fuel filter clogged? you may need to check the engine compression for bad valves or rings.if the compresion is off it wont get gas . check the fuel filter first though and keep me posted.

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1 Answer

Mantis 2-stroke tiller won't start

This could be one of several problems...
• Last year's fuel. Get some fresh gas.
• Every 2-stroke needs a new spark plug each year... you know what that means.
• Clogged carb jets due to storing the tiller over the winter with fuel in the system. Never, ever do that. Now you'll need to pull the carb apart and clean it. Most of the orifices are so tiny you can't see them. Good luck.
• Engine is so old the crankshaft seals have hardened with age. This is one reason no 2-stroke lasts longer than about 8 years. If the seals are shot, then it will cost more to fix than a new one costs. Time to toss it.

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