Tav40 not working

OPmini

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BMPoland1993

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@OPmini thank you! If you could give me a quick list of the parts I would need after removing the governor I would really appreciate it.
 

BMPoland1993

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@OPmini thanks for the input. I also need to know what size (thread dimension etc) are the standard carb jets in a Lifan 420cc engine?

Thanks!
 

BMPoland1993

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OK, so I got some stock jets here in Poland, left them at a CNC workshop and had one drilled out to 1mm, which is 0.0393700787 inches. On my 420cc with an air filter adapter and filter the engine still stalls when adding gas at idle. Any ideas?
 

OPmini

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Engine stalls with a smaller jet too.
There are multiple jet size calculators that use info like your altitude to calculate the best jet size, you may want to them check out. If that doesnt work and you just want this fixed bring it to a local powersports dealer or small engine repair shop and explain your problem with the jets.
 
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