The method for judging the richness of the combustible mixture is very simple. It is to stop the faulty motorcycle, wait for the engine to cool for about 10 minutes, then remove the plug from the cylinder head fire, and carefully observe the color of the spark plug electrode. The normal color is brownish red, such as When the color is black, it can be judged that the motorcycle has a rich combustible mixture. In order to avoid misjudgment, first open the air filter cover to confirm whether the filter element is clogged or severely blocked. After eliminating these factors, follow the procedure below for diagnosis and identification.
First, the motorcycle supports the support, the motorcycle is heated for 5 minutes (or the engine is running), and the auto-enrichment device of the carburetor is turned off;
Second, find a three-way connector (on the GY6 machine) connected in series on the intake negative pressure line. The water cooler then attaches a long rubber hose to the tee joint and drags it outside the vehicle. It can be hung on the left side of the faucet of the car. on;
Third, the left finger pinches the rubber hose, start the engine, slowly increase the throttle in the right hand, slowly release the left finger a little, pay attention to observe the change of engine speed, such as the speed rises quickly, indicating that the original car mixture is too rich.
4. If there is no tee, the negative pressure tube of the negative pressure switch can be tightened with a string (or clip) so that there is no source of negative pressure, so that the negative pressure switch does not drain, then start the engine, slowly increase the throttle, pay attention to observe The engine speed changes. At this time, when the fuel drops to a certain position in the carburetor float chamber, the engine speed will change significantly. At the same time, pay attention to the exhaust smoke color. If the black gas is not turned, the mixed gas over-concentration fault is caused by If the oil level of the carburetor float chamber is too high, the carburetor should be decomposed and properly adjusted.
5. If the above test is used, there is no change in the concentration of the mixed gas, indicating that the mixture is too rich and not caused by the oil circuit. It should be checked whether the ignition system and the gas distribution phase are normal.
In order to completely eliminate the adverse effects of rich combustible mixture on engine performance, it is recommended to carry out detailed inspection of the following items and, if necessary, properly repair or replace the relevant parts:
Care should be taken to check the idling air volume hole of the carburetor, whether the main air volume hole is blocked, whether the various holes are excessively worn, and whether the oil level of the float chamber is too high.
Whether the automatic enrichment device of the scooter carburetor is always in a rich state due to poor closure, or the negative pressure switch is malfunctioning, the gasoline outlet flows into the intake pipe at the negative pressure end, and the idle stroke adjustment screw of the second stroke machine rotates. Into the excessive anomalies.
The mining electric locomotive consists of mechanical part and electric part.The mechanical parts include: car frame, wheel set, bearing box, spring bracket, brake device, sanding device, connecting buffer device, etc.The electrical part includes: dc series motor, controller, resistance box, receiving bow, air automatic switch (overhead electric locomotive) or explosion-proof bolt, battery (battery electric locomotive).
Coal Mining Tunnel Locomotive
Coal Mining Tunnel Locomotive,Mine Rail Car,Electric Locomotive For Mining,Mining Tunnel Diesel Locomotive
Jining Dongda Electromechanical Co.,Ltd. , https://www.coal-mine-equipment.com
![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)