Two Briggs 550 Series Mower Engines Will Not Run

[billybronco1]

I have a Snapper and Troy-Bilt lawn mowers, both have the same Briggs engine 550EX 140 cc. I have cleaned the carbs on both of them after bad gas sat over the winter. Neither on will start. If I give it a shot of starting fluid it runs for a second, never gets gas form the carb it seems. Any ideas?

 

[Scrubcadet10]

Do you have your engine model?
If i remember right they have the plastic carbs??

 

[billybronco1]

Yes, the carb is completely plastic. I got some numbers off the block not sure if its the engine model or not.
I pulled the carb agian just to make sure the bowl was full of fuel and it was. This really has me stumped.

9P702 0144 F1
DOM 08 19 13

 

[billybronco1]

So this has even got stranger. I let the mowers sit a few days cuz I was at a loss. I gave it one a last chance pulled it once and it started and runs fine. The other one still will only run for a second on starting fluid, what the heck?

 

[Scrubcadet10]

All i can suggest is what i did with one carb similar to yours, take it off, take it apart, spray out every little hole,passage way and jet.
here are some diagrams that might help you https://www.jackssmallengines.com/j...es/09p700-to-09p799/09p702-0144-f1/carburetor