A primer bulb for a weedeater, it stimulates the engine by filling gasoline in the carburetor. When you press, the primer bulb will spray an amount of gasoline that is combined with the air to start the operation system. Some kinds of primer bulb which are made from plastic or rubber or...
The carburetor on your riding lawn mower is set by the factory. The only necessary adjustments are to periodically adjust the idle speed and the idle mixture. Most mowers now have a limiter cap around the idle adjustment screws. Do not attempt to force the screws past these caps as it will...
refill with fresh fuel and add oil at the recommended fuel-to-oil ration. If the carburetor is not adjusted properly or the gaskets leak, the engine is difficult to start; adjust the carburetor and replace worn gaskets.
Old fuel left in the trimmer's tank may partially evaporate, leaving a sticky substance that clogs the carburetor, eventually preventing the trimmer from starting. Instead of replacing the carburetor as a first measure, try cleaning it with acarburetor cleaner. You may also need toadjust the car...