(1) rotate the carburetor main jet needle valve clockwise (close) until it touches its stopping point - DO NOT FORCE OR GO BEYOND THE POINT OF TOUCHING as it may damage the tip.
(2) Rotate the needle valve counter-clockwise (open) 1-1/4 to 1-1/2 turns - this should be close enough to start the engine. Start the engine and let it warm up about five minutes.
(3) Rotate the needle valve clockwise (close) slowly until the engine starts to stall for lack of fuel, then rotate the needle valve counter-clockwise (open) slowly until the engine starts to stall from flooding (too much fuel).
(4) Set the needle valve to a midpoint between the two extremes for the best "purr" of the engine. If the engine "sputters" when a load is added, open the needle valve an extra 1/8 turn for a slightly richer mixture.
If the engine starts and you just want to adjust the carburetor, steps (1) and (2) are not necessary.
A Briggs and Stratton L head twin engine wills pit gas out of the carburetor and flood out when starting if the diaphragm has been damaged. This will cause excessive fuel to enter the carburetor.
It is a Briggs & Stratton Engine, so get the engine model and try jackssmallengines.com.
My engine is idling too high. How do I adjust the idle speed?
with a big freagin hammer
The fuel system on a Briggs and Stratton engine works by fuel being gravity feed from the fuel tank. Fuel goes to the carburetor where air and gas the mix, after the air and fuel mix it is feed into the engine where the engine goes through the four strokes.
The fuel filter for a Honda self propelled push mower with a Briggs and Stratton engine is located between the fuel tank and the carburetor. The fuel filter is only about one inch long.
Clean out the carburetor with gas, the reason it wont keep running is its not getting enough gas through the carburetor.
Go to your local autoparts store and by the rebuild kit according to your carburetor. Inside the box will be an exploded diagram of the carb which will make it relativly simple to rebuild First of all what kind of engine do you have. Briggs and Stratton or Tecumseh. If you have a Briggs & Stratton engine the factory setting on the little black screw is 1 turn out, Tecumseh engines 'usually' do not have adjustments. hope this helps
You can adjust the valves on your 17 horsepower Briggs and Stratton engine by turning the adjustment screws. The adjustments screws will determine how much fuel goes into the piston chamber.
Because your carburetor is not getting fuel to the engine - could be a plug in the fuel line or it could be dirt in the screen in the pick up tube in the carburetor. I would suggest you clean the carbutator.
When the engine shuts off, remove the spark plug and unspect it. If there is fuel on the plug, the engine shuts off because of over flooding probably caused by a clogged air filter or faulty spark plug or may need a carburetor adjustment. If the spark plug is dry, the engine shuts off due to fuel starvation caused by a clogged fuel filter or may need carburetor adjustment.
0.030 is the gap for briggs and stratton 4.5 hp mower