Tecumseh cranks then dies

[Gokart.restored]

I have a 6hp power sport tecumseh engine, hard to get cranked, it idles for 15-20 seconds then dies unless the throttle is played with, even after I cleaned the carburetor completely. What could be the culprit of it being so hard to keep running?

 

[MARGR4V3Z]

I have a 6hp power sport tecumseh engine, hard to get cranked, it idles for 15-20 seconds then dies unless the throttle is played with, even after I cleaned the carburetor completely. What could be the culprit of it being so hard to keep running?

How thorough did you clean the carb? Clean out all the jets with a wire piece? Compressed air? Could still be clogged even though you cleaned it once.

 

[B.M.800]

New plug? Coil? maybe a bit extreme, I had a honda do something similar when the coil was bad...

..get some guitar sting and poke out all the holes you can find, air pressure may not get it as good.

 

[cumminsbayou4x4]

valves are most likely what is wrong with it you can adjust them and that should fix it

 

[Gokart.restored]

I blew out the jets with carb cleaner and all the holes I could find in the carb. I tried a new spark plug an that wasn't the problem

 

[Gokart.restored]

I've never messed with valves so I do not know how to adjust them

 

[landuse]

Maybe some of these links will help you out

Tecumseh carb cleanup, servicing and troubleshooting
http://www.kichline.com/chuck/fixit/mowers/tcarb/tcarb.html
http://www.smallenginesuppliers.com...cumseh_L-Head_Engines_Service_Information.pdf
http://www.smallenginesuppliers.com...cumseh/Tecumseh-basic-service-information.pdf

All about Tecumseh engines
http://home.earthlink.net/~edstoller/index.html

 

[jamyers]

Dirt / varnish in the idle passages. If it were valves or ignition it would be constant (ie not run at all), not run for awhile and die.

The carb needs to be CLEAN, as in SPOTLESS. Try boiling it in lemon juice, sounds silly but it works.

 

[Gokart.restored]

I'll try that!