To adjust the carburetor float on a Polaris Sportsman 500 HO, first, remove the carburetor from the engine. Then, take off the float bowl to access the float mechanism. Adjust the float by bending the tab on the float arm so that it sits at the correct height, typically around 14-18mm from the gasket surface when the float is held parallel to the carburetor body. Finally, reassemble the carburetor and reinstall it on the ATV, ensuring all connections are secure.
Bad float valve in carb
Adjust carb on 400 Polaris 4x4 2stroke
the spark plugs on a 2002 sportsman 700 is ontop of the motor behind the carb. remove the carb
Usually the float valve in the carb is bad . The valve will not stop the fuel and it runs down the cylinder into the crankcase .
29 hp taken from Polaris website. They have there 400 ho Ranger listed as 29hp and it has the same 455cc carb engine as the Sportsman 400 ho
Canned carb cleaner but you will need new gaskets and should get a book that way you can adjust the float(s), linkages, etc.
Follow this link, should tell you everything you want to know: http://www.factorypro.com/tech_tuning_procedures/tuning_float_height_adj_procedure.html
The float is stuck in the OPEN position. Try sharply rapping on the float bowl several times with a non -metallic object. Screwdriver handles work great for this. I seriously doubt that the float went out of adjustment all by itself. Worst case scenario - take the float bowl off and spray carb cleaner around inside.
22mm is the float height for this carb
Bend the tab that contacts with the "needle". But DON'T put pressure on the needle when you do so. Carburetor rebuild instructions that come with the carb rebuild kit will tell you how to adjust everything and give optimum float level settings.
To change a spark plug you need to take off the seat and the side panel on the right side. After you do this the spark plug will be in front of the carb and on top of the engine block.
HEAT insulate fuel line make /buy small-thin carb spacer, adjust float level down