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wolf rx-50 with 49cc gy6 qmb139 engine

bought used in june 2019. it had starting and running issues. So, in 2019 replaced carb, fuel filter, coil and ignition wire, engine oil, cvt oil, adj valves, adj spark plug.

it ran fine after that. regularly driven 2-4 times a week the last few months of 2019. then twice daily in 2020 until March. then driven about once a month until june 2020. then parked on side yard and left until now.

2k miles currently on odometer.

it wont run. It does start and runs 2 to 4 seconds. It's obviously getting fuel, cuz you can hear it run. Ive started it over 100 times, so we are not taking residual fuel in line or carb bowl. I can see fuel flowing thru the filter, which still looks clean. Giving it gas after it starts does not increase the rpm. giving it gas before it starts and it wont start.

ideas?

tks,
pa
 

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Needs a carb cleaning, after sitting for 6 months it probably needs an ultrasonic dip tank cleaning.
 

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Need to clean the carb, can of carb cleaner through all opening like idle jet inlet and clean the jets inside. After that if it still has problems let us know
 
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