Repairs 1991 Briggs 28707 12hp flathead running issues

[BustedKnuckles]

Ladies and Gentlemen,

I bought this engine second hand and it runs good except for seeming to run out of fuel at times while mowing. I've learned that if you choke it for a second and then back to full throttle it runs good for a bit before having to repeat the same process.

I checked the bowl and emulsion tube before installing in on the mower and they were clean then but I haven't checked them again yet. Both the idle/fuel jet screws are 1.5 turns out. The fuel tank has been completely drained and the fuel filter is brand new. I have many carbs on hand but I would rather fix this instead of just swapping out parts. Gas is fresh and was purchased today.

Thanks in advance for any and all help.

 

[BustedKnuckles]

Carb swap done and fixed; thanks for the views.

 

[Rivets]

Did you mean a 280707? If so this website might help you in the future.

http://dl.dropbox.com/u/12502267/B&S Service Manuals/01_270962SingleCylinderLHead.pdf

 

[BustedKnuckles]

Thanks for the help!

 

[BustedKnuckles]

After swapping this carb to another engine, it turned out to be trash in the bowl; that'll teach me to be lazy again....

:biggrin: