[Solved] Stihl hs75 carburetor zama c1q - Does not feed fuel after cleaning

Hello.
I bought "Stihl hs75" occasionally, as ex owner claimed, only the handle for the cutter was broken, but the problem was in the mixture he poured. The piston didn't just rub, it just baked. Everything cleaned, the piston works. I will add that the machine was left with fuel inside, which solidified. The problem lies in the carburetor, after thorough cleaning, what can be dismantled, because there are elements that can not be pulled out, such as this plate next to the piston / valve in the angl cup plug, the diaphragms blown channels. The carburetor does not supply fuel. I do not know if this piston is not blown out, as it is pressed, it works as if it did not want, the spring is not there anymore? What can the problem be? I will add that if it gives fuel under the candle it burns.

The piston only closes the float chamber. You connected the pulse generator, and is its cable good?

Gunslinger wrote:

The piston only closes the float chamber. You connected the pulse generator, and is its cable good?

Everything is connected as it was, the cables were replaced with new ones, because the previous ones were cracked. The fuel reaches the carburetor, I dismantled it again, it is wet inside, only the fuel does not go further, reads not to the cylinder. I will change this piston and see if it works.

Check the vacuum channel to the diaphragm in the carburetor.

I am posting a video of the valve work asking if it works properly? And a photo with arrows of elements I'm not sure: green - oblong plate, which probably can not be dismantled, green - a small nozzle? I don't know if it's unobstructed or screwed or picked. How to clean it Pink arrow - adjustment, unscrewed I shot with a sprey to clean the carburetors and I do not know what ps which part of the carburetor regulates it? Maybe there is a problem.

https://youtu.be/B1VbSZMkGgk

Do not move the metal plate, it is technological. Carburetor spray doesn't do the job (usually as much as spray), and an ultrasonic cleaner is good.
Check the intake connection, as it may not be tight. And the surfaces of the rebate carburetor sand on a straight block with sandpaper. I know from experience that these carburetors can be crooked.

Hello. My adventure with scissors is still going on. The carburetor feeds fuel but I have the impression that instead of pumping fuel into the cylinder, the piston pushes it out. I noticed traces of fuel in the air filter chamber. I will mention that the piston was as if stuck in a block, but after pulling it out and cleaning it does not bear any signs of damage, the same cylinder inside (the guest probably poured other oil than recommended) I will mention that it fires after flooding candles.

As the piston was seized, the engine was blurred show photo of the cylinder (good resolution), cylinder and piston probably to be replaced.

Broken scented carburetor, replaced with a used one, the scissors are burning