Question about Tecumseh Lawn Boy Push Mowers Insight Silver Powered Series - Sens - A - Speed Walk Behind Mower - 10685
It is a 3.5 HP Lawnmower engine and it rus for 30 seconds and then slows and stalls. Cannot restart without priming it. Took carb apart and checked and cleaned everything!!!
Sounds like you will need to clean your carburetor even tho you said you alread did.
Make sure to blow out all the jets with compressed air, beware of small parts sometimes in the jets such as seats for the fuel float jet seat.
Sometimes you can get by with priming the carburetor a few times, and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
If the mower/weedeater is over a couple years old, then I also recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
When you clean your carburetor and remove the jet screws, You will first seat the jet screws and count the number of turns it takes to seat the jets from their original position.
That way when you go to put the jets back in, you know how many turns they were in/out.
Please rate me,
I hope this helped
Posted on Aug 15, 2010
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Posted on Jan 02, 2017
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