Your engine’s carburetor is designed to maintain a specific fuel level. The parts that stop fuel from flowing into the carb when the engine is not running are the float, needle, and seat. They function as follows:

• The seat is where fuel flows from the tank into the carb bowl.
• The needle seals to the seat and can stop fuel flow.
• The needle is connected to the float.
• The float is designed to move with the fuel level in the carb bowl. When the gas in the bowl gets high enough, the float raises and pushes the needle into the seat, shutting off fuel flow from the tank.

Start by draining the gas from the carb bowl. Use a container rated for gasoline, or the gas may break down the container. The bowl drain may be a thumb screw or a bolt. Once drained, remove the bowl and inspect for varnish and deposits inside the bowl. Also check the movement of the float. If you can feel any sticking, cleaning is in order. Sea Foam Spray will reliquefy these deposits for easy removal.

If cleaning does not resolve the sticking, then removing the float, needle, and seat is the next step. Inspect the needle. It should be conical and consistent. If it is hard or deformed, it will not seal properly and will allow the bowl to overfill.

Also inspect the float pivot or linkage, and that the float hasn’t leaked or saturated, keeping it from floating in a full fuel bowl.

Once your repair is complete and you have fresh oil in the engine, it is time to protect yourself from a repeat problem.

Most failures in this system could be caused by aging fuel. Unlike many other carb cleaners, Sea Foam Motor Treatment will not damage your plastic or rubber parts, like the float or needle seal, by causing swelling or warping. An ounce per gallon of gas prevents the sticking and clogging from aging fuel deposits that cause this inconvenient failure.