Abstract: The present disclosure discloses a throttle and choke control linkage mechanism of carburetor including a choke shaft rotatably installed with a choke valve, a throttle shaft rotatably installed with a throttle, a choke handle fixed on the choke shaft and configured for rotating the choke valve from a fully opened position to a fully closed position, a throttle grip fixed on the throttle shaft and configured for rotating the throttle from an idling position to an opened position, and a fast idle handle rotatably around the choke shaft. The choke handle is further provided with a first surface which is able to link with the throttle grip. When the choke handle is linked with the throttle grip, the choke valve is at the fully closed position, and the throttle is opened with an angle larger than the idling position.

Abstract: A fuel enrichment simple starting device for a carburetor includes a fuel cup and a main body, which includes a mixing room, a metering room, a fuel chamber separated into a fuel pumping chamber and a fuel enrichment chamber, a fuel inputting passage, a fuel passage, a starting passage and a fuel returning passage. The fuel pumping chamber and the fuel enrichment chamber are in communication with the fuel cup. One end of the fuel inputting passage is in communication with the fuel enrichment chamber, and the other end thereof is in communication with the metering room. One end of the starting passage is in communication with the fuel enrichment chamber, and the other end thereof is in communication with the mixing room. One end of the fuel returning passage is in communication with the fuel cup, and the other end thereof is in communication with a fuel tank.

Abstract: The present disclosure discloses a throttle and choke control linkage mechanism of carburetor including a choke shaft rotatably installed with a choke valve, a throttle shaft rotatably installed with a throttle, a choke handle fixed on the choke shaft and configured for rotating the choke valve from a fully opened position to a fully closed position, a throttle grip fixed on the throttle shaft and configured for rotating the throttle from an idling position to an opened position, and a fast idle handle rotatably around the choke shaft. The choke handle is further provided with a first surface which is able to link with the throttle grip. When the choke handle is linked with the throttle grip, the choke valve is at the fully closed position, and the throttle is opened with an angle larger than the idling position.

Abstract: A dual fuel carburetor includes a carburetor body, a main jet pipe and a float chamber housing to form a float chamber, the needle valve device includes a pushing needle and a needle valve base, the pushing needle is movably inserted in the float chamber housing, and a window is formed at a bottom of the float chamber housing, the needle valve device further includes a sealed corrugated sleeve positioned around the pushing needle, which has a first end hermetically connected with the pushing needle and a second end hermetically connected with the float chamber housing, a driving spring is positioned around the pushing needle, and the pushing needle has a driving end extended out from the float chamber housing and opposite to that end cooperated with the valve base hole. The needle valve device is in a reasonable design to obtain mechanical controls or other automated drive controls.

Abstract: A fuel enrichment simple starting device for a carburetor includes a fuel cup and a main body, which includes a mixing room, a metering room, a fuel chamber separated into a fuel pumping chamber and a fuel enrichment chamber, a fuel inputting passage, a fuel passage, a starting passage and a fuel returning passage. The fuel pumping chamber and the fuel enrichment chamber are in communication with the fuel cup. One end of the fuel inputting passage is in communication with the fuel enrichment chamber, and the other end thereof is in communication with the metering room. One end of the starting passage is in communication with the fuel enrichment chamber, and the other end thereof is in communication with the mixing room. One end of the fuel returning passage is in communication with the fuel cup, and the other end thereof is in communication with a fuel tank.

Abstract: This present invention relates to the field of carburetor, in particular, relates to a fuel enrichment simple starting device and method of carburetor, using pre-injection technology to achieve engine fuel enrichment start, That is, in the first step squeeze the purge bulb, pre-inject the quantitative fuel, and then use the choke of the large volume air to achieve simple start, steps: the first step, squeeze the purge bulb; the second step, close the choke; the third step, pull the engine starter to the engine running; the fourth step, increase and decrease the throttle to normal running. If using the fuel enrichment simple starting device and method of carburetor in the present invention, the engine can be started completely by above four steps, the starting device has the advantages of simple operation, less starting times and easy to start at low temperature (such as 0° C.).

Abstract: This invention relates to an anti-adjusting butterfly valve type carburetor, comprising a kind of high speed adjustment oil needle having eccentric hole and a kind of idle adjustment oil needle having eccentric hole, and it also correspondingly discloses a kind of specialized adjustment tool having eccentric convex platform for adjusting the high speed adjustment oil needle and the idle adjustment oil needle. The invention also discloses a kind of high speed adjustment oil needle having eccentric convex platform and a kind of idle adjustment oil needle having eccentric convex platform an it also correspondingly discloses a kind of specialized adjustment tool having eccentric hole for adjusting the high speed adjustment oil needle and the idle adjustment oil needle.

Abstract: A carburetor with rotary valve includes an idle adjustment needle with an eccentric hole, accordingly a special adjustment tool used for idle adjustment needle has an eccentric boss; a carburetor with rotary valve includes an idle adjustment needle with an eccentric boss, accordingly a special adjustment tool used for idle adjustment needle has an eccentric hole. The idle adjustment needle must be cooperated with the special adjustment tool to carry out the adjustment, thus non-professional user can not casually adjust the fuel oil needle without the special tool, so that the engine can be maintained in the best setting condition to ensure the engine exhaust to meet the environmental protection requirement.

Abstract: This present invention relates to the field of carburetor, in particular, relates to a fuel enrichment simple starting device and method of carburetor, using pre-injection technology to achieve engine fuel enrichment start, That is, in the first step squeeze the purge bulb, pre-inject the quantitative fuel, and then use the choke of the large volume air to achieve simple start, steps: the first step, squeeze the purge bulb; the second step, close the choke; the third step, pull the engine starter to the engine running; the fourth step, increase and decrease the throttle to normal running. If using the fuel enrichment simple starting device and method of carburetor in the present invention, the engine can be started completely by above four steps, the starting device has the advantages of simple operation, less starting times and easy to start at low temperature (such as 0° C.).

Abstract: An anti-adjusting rotary valve type carburetor includes a high speed adjustment oil needle having an eccentric hole and an idle adjustment oil needle having an eccentric hole. Also disclosed is a specialized adjustment tool having an eccentric convex platform for adjusting the high speed adjustment oil needle and the idle adjustment oil needle. Also disclosed is a high speed adjustment oil needle having an eccentric convex platform and an idle speed adjustment oil needle having an eccentric convex platform. Also disclosed is a specialized adjustment tool having an eccentric hole for adjusting the high speed adjustment oil needle and the idle speed adjustment oil needle.

Abstract: A dual fuel carburetor includes a carburetor body, a main jet pipe and a float chamber housing to form a float chamber, the needle valve device includes a pushing needle and a needle valve base, the pushing needle is movably inserted in the float chamber housing, and a window is formed at a bottom of the float chamber housing, the needle valve device further includes a sealed corrugated sleeve positioned around the pushing needle, which has a first end hermetically connected with the pushing needle and a second end hermetically connected with the float chamber housing, a driving spring is positioned around the pushing needle, and the pushing needle has a driving end extended out from the float chamber housing and opposite to that end cooperated with the valve base hole. The needle valve device is in a reasonable design to obtain mechanical controls or other automated drive controls.

Abstract: A carburetor with rotary valve includes an idle adjustment needle with an eccentric hole, accordingly a special adjustment tool used for idle adjustment needle has an eccentric boss; a carburetor with rotary valve includes an idle adjustment needle with an eccentric boss, accordingly a special adjustment tool used for idle adjustment needle has an eccentric hole. The idle adjustment needle must be cooperated with the special adjustment tool to carry out the adjustment, thus non-professional user can not casually adjust the fuel oil needle without the special tool, so that the engine can be maintained in the best setting condition to ensure the engine exhaust to meet the environmental protection requirement.

Abstract: An anti-adjusting rotary valve type carburetor includes a high speed adjustment oil needle having an eccentric hole and an idle adjustment oil needle having an eccentric hole. Also disclosed is a specialized adjustment tool having an eccentric convex platform for adjusting the high speed adjustment oil needle and the idle adjustment oil needle. Also disclosed is a high speed adjustment oil needle having an eccentric convex platform and an idle speed adjustment oil needle having an eccentric convex platform. Also disclosed is a specialized adjustment tool having an eccentric hole for adjusting the high speed adjustment oil needle and the idle speed adjustment oil needle.

Abstract: This invention relates to an anti-adjusting butterfly valve type carburetor, comprising a kind of high speed adjustment oil needle having eccentric hole and a kind of idle adjustment oil needle having eccentric hole, and it also correspondingly discloses a kind of specialized adjustment tool having eccentric convex platform for adjusting the high speed adjustment oil needle and the idle adjustment oil needle. The invention also discloses a kind of high speed adjustment oil needle having eccentric convex platform and a kind of idle adjustment oil needle having eccentric convex platform an it also correspondingly discloses a kind of specialized adjustment tool having eccentric hole for adjusting the high speed adjustment oil needle and the idle adjustment oil needle.