

Remove the line and check for blockage.Fuel will not reach the carburettor if the fuel valve is closed.

Remove the air cleaner and inspect the choke plate mounted on a shaft at the opening of the carburettor's throat.

Commercially available carburettor cleaner comes in convenient spray cans for periodic cleaning of both inside and outside the carburettor. Luckily, you can take care of many of these problems quickly and easily-often without even removing the carburettor from the engine. Deposits inside the carburettor can clog fuel and air passages and reduce performance or stop the engine altogether. Constant vibration and wear can affect the setting of the carburettor's mixture screws (if equipped).Īnd with all of the grass, twigs and other debris that a small engine encounters, it's not surprising that even passages inside the carburettor eventually pay a price. Next, the linkages attached to the carburettor's throttle and choke plates can bind or stick when dirty. A clogged air filter is a common cause for black smoke emitting from the exhaust. First, make sure that the air coming into the carburettor is clean and free of debris by inspecting the air filter. A big part of ensuring a smooth-running engine is keeping your carburettor and linkages clean and well adjusted.
