The float level on a Polaris 250 generally refers to the height at which the float in the carburetor is set to allow the correct amount of fuel into the carburetor bowl. For most Polaris 250 models, the float level should be adjusted to approximately 15-17 millimeters from the gasket surface when the carburetor is inverted. It's important to refer to the specific service manual for your model for precise measurements and adjustments. Proper float level ensures optimal engine performance and fuel efficiency.
To adjust the float on a 5 hp Tecumseh engine, first, remove the carburetor and then take off the float bowl. Check the float for proper movement and inspect the needle valve for wear. Adjust the float height by gently bending the float arm so it sits at the correct level when closed, typically around 1/4 inch below the carburetor body when inverted. Reassemble the carburetor and test the engine to ensure proper fuel delivery.
The float level in the carburetor is either to high and floods the engine while turning and it dies.If it's to low then fuel goes to one side of the fuel boal in the carburetor when turning and engine leans out / RUNS OUT OF FUEL. and dies.Adjust float level in carb.
I would suspect a bad needle valve and seat in the carburetor. The float level can also be set too high. I would replace the needle valve and seat and check float level.I would suspect a bad needle valve and seat in the carburetor. The float level can also be set too high. I would replace the needle valve and seat and check float level.
The float is heavy because it has leaked and filled partially with gasoline or it has become saturated. If the float is heavy it will not stop the flow of gas into the float chamber at the correct level. This will cause the carburetor to dump a rich mixture into the combustion chamber. The engine will foul the spark plug quickly and use more fuel than expected.
Use a float level gauge and measure the distance from the carburetor body to the float arm - The correct float level is 7.5mm(0.30in.)
The float level on the XR500 motorcycle is typically set to around 19-20mm below the float bowl gasket surface when the carburetor is inverted. This measurement ensures proper fuel delivery and optimal engine performance. It's important to consult the service manual for precise instructions on adjusting the float level.
Floats control the amount of fuel in the carburator's bowls. The fuel level that is incorrect can cause an lean/rich condition.
There should be a hose connecting the vents on the front and rear float bowls. You are missing the hose. If for some reason the fuel level is too high the gas will travel to the rear of the carb and be burnt in the engine. You need to have the float level adjusted to a lower level, maybe a full rebuild. Do not use the carburetor without the balance hose, due to fire hazard.
Seals, or float level.
needle & seat maybe dirty , also check float level
Most likely, Your float is stuck in the carburetor. If it is stuck open gas will continue to flow into the carburetor bowl, then it will flow into the crank case and cause your oil level to rise. You need to take off your carburetor and adjust the float.