Question about Tecumseh Engine 10 Hm100 Valve Lifter Tappets 34034 Off Coleman Maxa Er 5000

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I have a 10 hp Tecumseh motor that only runs at full throttle. It backfires and dies. whats wrong ?

The motor was put on a Snapper riding mower. It will crank but will only stay running wide open. If you move the throttle in either direction, it backfires and dies

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6ya6ya
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Posted on Jan 02, 2017

  • 110 Answers

SOURCE: won't stay running

Check the gas cap vent. A partial vacuum in the tank will cause these symptoms.

Posted on Nov 02, 2009

kel1guy2002
  • 3740 Answers

SOURCE: I have a 10 hs

Hi and welcome to FixYa, I am Kelly. I understand you have a 10 HP Tecumseh engine. There are service manuals available on line for your engine but without your engine model number it is difficult to pass you the correct one: Here is the link for the service manuals:
http://www.mymowerparts.com/pdf/Tecumseh_Service_and_Repair_Manuals

Somewhere in the list is your manual.
This is my best guess without your engine model number:
http://www.mymowerparts.com/pdf/Tecumseh_Service_and_Repair_Manuals/TECUMSEH_SERVICE%20_REPAIR_MANUAL_OHH50-65_OHHSK50-130_OHV11-OHV17_OVM120_OVRM40-675_OVRM120_OVXLC120_OVXL120_OVXL125_695244A.pdf

^-Make sure you read about Adjustments in section 1 also.

Running wide open causes:
1. Broken throttle control plate spring
2. Governor spring problem
3. Internal Governor flyweight has departed the governor gear.
4. Throttle plate (butterfly) attached to the throttle shaft in the carb throat has come off the throttle shaft.
5. Broken / missing linkage
6. Someone loosened the governor shaft bolt at the base of the governor arm and allowed the governor to get out of adjstment.

Thanks for choosing FixYa,
Kelly

Posted on Aug 12, 2011

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1 Answer

I installed a 632690 carburetor on my older sears 10 hp riding mower. The mower starts but I can't adjust the speed. I need a diagram on how to connect the linkage


interesting
Tecumseh 632690 - Carburetor
if still original
the sear should have a Tecumseh 11 hp motor

the pictures are the original governor and carby set ups for a sears 10 hp
26315286-gbuu2k25rgqu2vzcbucmxcsq-1-0.jpg



26315286-gbuu2k25rgqu2vzcbucmxcsq-1-3.png

26315286-gbuu2k25rgqu2vzcbucmxcsq-1-6.png26315286-gbuu2k25rgqu2vzcbucmxcsq-1-4.jpg

Oct 18, 2016 | Sears Garden

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I switched my SR830 mower from the original 8 hp briggs to a 17.5 hp Tecumseh off a later model. I need to know how this engine and starter solenoid wires up


  1. Tecumseh Small Engine Parts - RepairClinic.com

    www.repairclinic.com/Shop-For-Parts/.../Tecumseh-Small-Engine-Parts Huge selection of Tecumseh Small Engine parts in stock. Same day shipping. Open 7 days a week. 365 day return policy.

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My lt 1000 17.5 hp riding mower will backfire once in awhile when starting but runs fine once it starts. why


first smell the oil is there a gas smell to it?the needle valve maybe dripping fuel and over flowing into the intake

Apr 18, 2012 | Craftsman Garden

1 Answer

I have a 10 hs tecumseh motor on a riding mower i need an explode view of carb and linkage when start-up engine it goes wide open


Hi and welcome to FixYa, I am Kelly. I understand you have a 10 HP Tecumseh engine. There are service manuals available on line for your engine but without your engine model number it is difficult to pass you the correct one: Here is the link for the service manuals:
http://www.mymowerparts.com/pdf/Tecumseh_Service_and_Repair_Manuals

Somewhere in the list is your manual.
This is my best guess without your engine model number:
http://www.mymowerparts.com/pdf/Tecumseh_Service_and_Repair_Manuals/TECUMSEH_SERVICE%20_REPAIR_MANUAL_OHH50-65_OHHSK50-130_OHV11-OHV17_OVM120_OVRM40-675_OVRM120_OVXLC120_OVXL120_OVXL125_695244A.pdf

^-Make sure you read about Adjustments in section 1 also.

Running wide open causes:
1. Broken throttle control plate spring
2. Governor spring problem
3. Internal Governor flyweight has departed the governor gear.
4. Throttle plate (butterfly) attached to the throttle shaft in the carb throat has come off the throttle shaft.
5. Broken / missing linkage
6. Someone loosened the governor shaft bolt at the base of the governor arm and allowed the governor to get out of adjstment.

Thanks for choosing FixYa,
Kelly

Aug 12, 2011 | Tecumseh Garden

1 Answer

Early 1990's 12 hp tecumseh runs until hot then backfires & dies


Coil failure! The heat is what triggers it. I bet you that if you take the cover off the engine you will find the remains of an mouse nest. The nest blocked the airflow and damaged the coil.

In the spring the shop I work at gets a lot of this kind of problem. Critters love to build nests where they feel safe from weather and predators. Your mowers engine....is just one of those places.

Good news is: You can easily replace the coil yourself. The part for this style mower is available online....even through ebay! You can do the change yourself and make her good as new!

Just as an aside. You may want to check compression on your engine if it ran hot for so long. Make sure the combustion chamber isnt packed with carbon and oil coking! If you have pull start and notice higher than normal effort is needed to start it might be a sign of this problem.
The fix there is also pretty simple. You just need to order a new head gasket. Hey....while youre waiting for a coil why not wait for a head gasket right?

Jul 19, 2010 | Garden

1 Answer

Wiring diagram for 10 hp tecumseh motor.


no worries go to searsparts.com type in your model # and follow the prompts you can then print it out for free ?

Aug 27, 2009 | Garden

1 Answer

Mower will not move while in gear


check to see if there is a second belt for the transmission, you may have nicked that belt or put the pulley tession to the wrong bulley.

Jul 15, 2009 | Garden

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