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Power Mat Brushcutter Engine Shuts Off Post-Choke - Carburetor, Spark Plug, Fuel Filter Checked

pawbar42 47253 8
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 13451498
    pawbar42
    Level 9  
    I have a problem with a brushcutter it starts quite well on the choke but when it warms up and I turn off the choke the engine chokes and goes out the choke in this brushcutter is a flap that closes or opens the air supply in the fall when the choke was turned off the engine had higher idle speed and now it goes off when turned off
    I cleaned the carburetor twice, the spark plug is new, the fuel filter is new, please help
    it is a Chinese power mat scythe used 2 seasons from new
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  • #2 13451517
    SKM 1964
    Level 34  
    It comes out as a lack of fuel after turning off the suction. Or maybe the spark disappears by accident. Does the HV cable not massage somewhere?
  • #3 13451569
    pawbar42
    Level 9  
    I checked the spark, it is good with the wire, everything is fine
    as I turn off the choke and keep it at high speed, it goes well and turns well, only when I release the gas it goes out
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  • #4 13451572
    shinto
    Level 18  
    Chinese Powermat scythe.. Start by unscrewing the muffler and looking through the exhaust window at the condition of the piston and cylinder.. For my taste, the beginnings of seizing. Do you not give the mixture too lean?
  • #5 13451584
    pawbar42
    Level 9  
    the piston and cylinder have no scratches, I checked it yesterday. how is the mixture regulated?
  • #6 13451594
    konradx
    Level 18  
    Equipment after winter. You have a diaphragm in the carburetor to be replaced because it broke. Replace it with a branded one and you'll be happy for a long time.
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  • #7 13451610
    pawbar42
    Level 9  
    konradx tell me how this screw in the carburetor is to be set to how many revolutions it turns out

    Added after 4 [minutes]:

    and is it possible that after 2 years this membrane will splinter?
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  • #8 13451629
    shinto
    Level 18  
    This is also very possible, especially if there are fuel residues in the tank and carburetor. Brushcutters are given a mixture of 1:40 with oil, in the case of Chinese brushcutters, many have an oil to gasoline ratio of 1:25 and this must be strictly observed. L and H screws are used for adjustment. But until you replace the membranes, do not move the screws.
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Topic summary

The user is experiencing an issue with a Chinese Powermat brushcutter that starts well on choke but stalls when the choke is turned off, particularly at lower idle speeds. Despite having checked the spark plug, fuel filter, and cleaned the carburetor, the problem persists. Responses suggest potential causes including a lack of fuel, issues with the carburetor diaphragm, or a lean fuel mixture. Recommendations include inspecting the piston and cylinder for damage, replacing the carburetor diaphragm, and ensuring the correct oil-to-gasoline ratio (1:40 or 1:25 for Chinese models). The user is considering purchasing a new carburetor as a solution.
Summary generated by the language model.
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