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Mtd riding lawnmower won't run

Tecumseh model 204509e ohv 155 engine will run for approx 15 minutes then shuts down. no spark. after a cooldown period spark returns and engine will run. coil or ignition module?

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My mtd lawn mower wont start . when I turn the key there is a buzzing soung where the battery conectors are near the shifter but the starter is hot and getting juice

Posted on Jun 13, 2009

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25 hp Briggs and stratton keeps blowing 20 amp fuse in engine compartment

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It sounds like the ignition coil is bad. I have seen where they bench test ok, but when they warm up, they short out until they cool down.

Posted on Feb 06, 2009

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1 Answer

I have a Murray 20 model 20213A with a Tecumseh engine. The lawnmower will start but it dies a few minutes later. What could cause this and where can I get a manual for this model lawnmower?


Use high test fuel without ethanol, and

Murray 22" Lawn Mower - Carburetor Cleaning, Nasty ...

? 7:33
www.youtube.com/watch?v=_dzcDZUh1MY
May 10, 2013 - Uploaded by mountainbikekayak But here is the link for the start up of this Murray had to replace the plug as well also ... as well: Murray 22" Lawn Mower 6.5 HP OHV -- First Start after Carburetor Cleaning - Part III - May 9, 2013 ... When I start it, it runs for 3-4 seconds and dies. ... Youcan also find you engine Model # online and view the ...

Sep 09, 2015 | Tecumseh Garden

1 Answer

Is it hard to change a magneto on a 5.5 hp Tecumseh engine?


How old is the gas in the tank? If it is older than 2 months drain it out and put in fresh gas and try again. Have you seen spark jump across the spark plug gap? To check for spark I use a spark checker. One end goes to the plug and the other to the spark plug lead. If you have spark you see a light flash which is more easy to see.

Sep 16, 2014 | Tecumseh Engine 5.5hp Horizontal OHV MTD...

1 Answer

Motor shuts down sudden after 15 to 20 minutes run


it could be 2 things the soilonod is bad or the jets are pluged up in the carb

May 06, 2013 | Mtd Garden

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Engine will only run in full chock position?


the carb needs to be cleaned the nozzles are plugged

Mar 31, 2012 | Mtd Garden

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Have a 12 hp Tecumseh engine that bvackfires with ohv


Your problem could be one of several things.. A bad spark plug, bad gas, failure to lower the idle and let it run a few seconds prior to shutting it off, unadjusted valves, etc.

I'd start with the plug and some fresh gas, then go from there. Always idle the engine down for a few seconds before shutting it off. This allows all the gas in the combustion chamber to be burned up preventing backfire.

Jan 14, 2012 | Tecumseh Enduro Vertical Engine 16 HP 1in...

1 Answer

Have an MTD Chipper-Shredder Model 462B 5 H.P. lost the spark plug. What size do I need?


That model number is not helpful. I need the full model number on the manufacturer's label. Or even better, the full model number on the engine (separate label from the one for the whole machine). Need the make of the engine if you can find it. I have a Craftsman (that I think may have been made by MTD) that has a Tecumseh engine. But it was not stated on the machine, I had to find the brand by using the model number for the whole machine and looking it up from there to find the maker. If it is a Tecumseh engine, the label will be low and left on the engine shroud as you are looking at the shroud, spark plug points up.

If you can give me the label plate data, for both labels, then I will be able to tell you what the spark plug should be.

Sep 08, 2011 | Mtd Garden

1 Answer

My craftsman lawnmower 917.378941 runs about 10-15 minutes and then dies. I wait about 10 minutes, and will start fine and run approx 10-15 minutes again. It seems like it is getting hot and shutting down....


provided fuel flow is consistant and fuel tank beather is clear

sounds like the magnetron coil assy is going open circuit when hot
replace the magnetron with same type of unit as fitted to engine

two types could be used

1, standard magnetron ( has a piece of card between the halves of the iron lamination stacks

2 advancing style magnetron this unit looks like the standard one
except it has no card and has a wideish back gap at the ends of lamination stack

which ever one is used use same type


here is web site for parts
http://www.briggsandstratton.com/maint_repair/manual_and_more/

enter model and type numbers from blower housing on engine

good site check it out

cheers paul

Aug 02, 2010 | Briggs & Stratton Briggs Stratton...

1 Answer

I HAVE A MTD YARD MACHINE 12A446B729. RUNS FIVE MINUTES THEN STOPS AFTER WARMS UP STARTS UP AFTER COLD. SPARK PLUGE CLEAN AIR FILTER CLEAN


was having the exact same problem with my 6.5 hp Toro lawnmower with a Tecumseh engine. The engine would start up okay but after a few minutes of mowing, the mower would start missing and eventually shut down. I would pull and pull and pull on the starter rope, getting angry and frustrated and eventually going back in the house to let it cool down.

I looked up all kinds of information and I finally decided it was a bad coil (something about the resistance being low when the mower wasn't hot and then when it heated up the coil would conduct enough electricity to somehow make the engine shut down.)

I called a local shop and wanted to get an estimate on replacing the coil. I have no clue about engines so I dared not get into the guts of the mower myself. He told me to check the gas cap. HUH??????

He told me to make sure there wasn't a part missing out of it. I thought, what the heck would a gas cap have to do with the engine shutting down. Well, apparently there is a mechanism on these caps that prevents a vacuum from pulling on the fuel system and my gas cap indeed had a part missing. To verify this, I cut the grass for about 5 minutes. When it started to run rough, I took the gas cap off to allow pressure to escape from the gas tank and voila! it started to purr like a kitten.

So, I'm only out $4 for a new gas cap and I'm as good as new. Man I wish I was more mechanically inclined so I hope your problem is as easy to solve as this one.

Hope this helps!

Apr 12, 2009 | Mtd 22" Yard Machine Push Mower

1 Answer

Garden tractors and riding mowers


If this is an older model engine , it may have points & condenser . You can change them or get an electronic ignition module to update your engine. On the points & condenser , the condenser gets very hot ! Thats why it will restart after a cooldown period ! Get the new parts , it comes with instructions . Good Luck !

Sep 28, 2008 | Garden

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