How to adjust the big smoke of the chain saw, and what is the big smoke of the chain saw?

First, adjust the carburetor, "H oil needle" and "L air needle" are gently tightened and then all turn out between one and a half to two turns (the engine is easy to be damaged when the H oil needle is less than one and a half turns), the L oil needle is used to finely adjust the idle speed, and the idle speed is mainly adjusted by the T needle.

Second, check the oil filter head, you can remove the oil filter head first, and then start the chain saw test is normal, if the troubleshooting, it proves that the oil filter head is blocked, please be patient to clean the oil filter head. The metal filter inside the oil filter can be removed and left untouched, which can prevent moisture from clogging the oil filter head.

Third, check the intake valve of the fuel tank, whether the air intake is good, the gasoline tank cover is loosened and the air is inhaled, and the acceleration is strong at this time, which proves that the negative pressure valve is not enough to take in, replace or adjust.

Fourth, the carburetors used in Yingxing, Zhongjian, and Zhongma brand chain saws are all imported from Japan, so when cleaning the carburetor, please do not easily adjust the oil level and destroy the original structure, and you can use it with confidence after thorough cleaning.

If you use force, it is a problem with the quality of the oil, if there is no force, then adjust the high-speed oil needle (Komatsu chain saw symbol H, the 78 chain saw on the right side of the carburetor) slowly tighten, increase the throttle, and look at the size and strength of the smoke while adjusting.

Hehe. This one is hard. The best shortcut is to use less oil.

If it's a new machine, your oil mix is too large.

What kind of oil you're using, if it's not a two-stroke, that's the problem.

One situation is that if a chainsaw and a two-stroke lawn mower emits a lot of smoke, most of the reason is that the oil ratio is too high or the use of very poor quality oil will produce a lot of smoke, usually when the chainsaw lawn mower has no mechanical failure.

Another situation of the hedge trimmer is that the machinery is faulty, and white smoke, black smoke and blue smoke will be emitted.

1. In general, there are two situations in which there is still white smoke in the state of the hot engine of the machinery powered by small gasoline engines (chain saws, lawn mowers, hedge trimmers, planters, tea pickers, high branch saws, etc.); Fuel contains water; The white smoke emitted by the cold car engine, especially when the engine is started at low temperature, but it is normal for the white smoke to disappear as the engine temperature rises;

2. The black smoke emitted by the planter 2 and the small gasoline engine has the following situations: the air-fuel ratio is out of balance; Cylinder pressure drops; Loose machine valves on four-strokes can cause black smoke. If there is heavy black smoke, there are other aspects to consider;

Tea picker 3, small gasoline engine blue smoke is often caused by "burning engine oil", at this time should check whether the engine cylinder liner is worn, whether the "sticky ring", ring counterpart, valve gap is too large, etc., and at this time it is also accompanied by the phenomenon of crankcase blowing. Excessive oil supply will also enter the engine cylinder from the exhaust pipe and "smoke blue", so the oil should be changed in time and the oil level should be checked frequently during daily maintenance.

The situation that the chain saw smoke is relatively large, indicating that the internal equipment has a certain fault or is caused by a short circuit, so there are certain potential safety hazards at this time, and it is necessary to communicate with technical personnel in time to repair and process the use to achieve the degree and requirements of safety.

It should be a problem with the oil pump, adjust the oil volume adjustment screw at the bottom of the machine (depending on the specific machine model) to the maximum, and try it. If not, the oil pump is damaged!