20 hp Briggs
I just finished mowing our back yard[ appox. 1/3 of an acre. After a cooling off time, Tried to start and park in our shed. It would not hit a lick. This mower is 12 years old with no former issues. I next drained the fuel, changed the plugs and fuel feed line. The eng. continued to flood on start attempts. Changed the needle valve, inspected the seat. The float is plastic with no fuel inside. My owner manual shows a picture showing how to adj. the carb. It also shows the fuel pump[ with thee screws] mine has four screws. It also has a non adj. idle mix. jet, mine just has a hole. I checked with our local mower shop and they advised me to plug it, I did no help. Now after checking the needle valve again, it started up but before reaching on speed the remote throttle control linkage moved to full throw???? What controls the remote linkage ? The rigging seems to meet the specs. in the picture. I spent 50 years fixing air plane engs. but this has me baffled.