Dellorto carburetor is a mechanical device that mixes a certain proportion of gasoline and air under the vacuum generated by the engine. In order to make the mixture mixed evenly, the Dellorto carburetor has the effect of atomizing the fuel for the normal operation of the machine.
When to adjust the Dellorto carburetor?
How to match Dellorto carburetor and engine?
How to adjust the mixing ratio of Dellorto carburetor?
Generally speaking, if the exhaust pipe emits black smoke, or the idle speed is unstable, and the filler valve is not smooth and the transition is poor, we need to adjust or clean the Dellorto carburetor. It is also necessary to readjust the mixing ratio and then readjust the idle speed after maintenance of Dellorto carburetor.
When replacing a car with a piston ring or a cam rocker arm, if the cam rocker arm needs to be removed, the valve clearance needs to be readjusted. After adjusting the valve clearance, we need to adjust the mixing ratio screw of the Dellorto carburetor. Another point is that if the air filter element is too dirty, we'd better adjust it after cleaning the filter element to make the Dellorto carburetor work better.
How to match Dellorto carburetor and engine?
Dellorto carburetor is an important part of motorcycle. The oil inlet mode of Dellorto carburetor float chamber adopts needle valve and float to control the automatic oil inlet system. There is a hinge structure between the fuel float and the Dellorto carburetor seat. When the engine is running, the fuel height of the float chamber decreases with the consumption of fuel. The float drives the floating tongue and fuel needle valve to move downward to open the fuel needle valve and the fuel flows into the float chamber.
The quality of Dellorto carburetor and the matching of engine determine the performance and fuel economy of motorcycle. The matching of Dellorto carburetor and engine can be realized by readjusting the Dellorto carburetor so as to achieve the best performance of engine under various working conditions and improve the fuel economy of motorcycle.
First, check the tight connection of the connecting pieces related to the Dellorto carburetor to ensure that the Dellorto carburetor sucks normally without air leakage and suction block.
Rotate the Dellorto carburetor mixing ratio screw clockwise to the end. Then, rotate it counterclockwise for 1.5 turns to start the engine. Let the engine warm up for 10 minutes, and make the engine reach the normal working temperature. Adjust the idle speed adjustment screw of the Dellorto carburetor to keep the engine at the lowest speed and keep it running.
Repeatedly adjust the Dellorto carburetor mixing ratio screw left and right to maximize the engine speed. In this process, you will find that after the mixing ratio screw is adjusted to a certain position. Rotate the mixing ratio screw counterclockwise, and the idle speed will not change. At this time, the mixing ratio screw can be kept at the position when the idle speed has just been adjusted to the maximum.
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