2021 Massimo MSU 800 will not run above 20 MPH
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By donny
Hello I am new here but have had this machine for about 5 years. I am having issues with it surging and sometimes sounding like a small backfire thru the intake. When putting in low, high or reverse it will struggle then go full power then struggle. It will only do the small backfire thing while in neutral reving it many times. Once in awhile it will throw a check engine light.
Parts replaced/checked:
I have checked the valve lashing, timing and adjusted. Parts replaced are the coils, spark plugs, injectors, fuel lines, fuel pump, IAC sensor, TPS sensor, throttle cable, speed sensor, primary and secondary clutch and belt.
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By russnropes
For the life of me I cannot find the directions on how to change the display to the standard for the USA - MPH. Not sure why Tractor Supply didn't do it before I bought it but it is what it is. Does anyone have the instructions to do this. I have the 2023 T Boss 550 just to be clear.
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By DLJ
Have a Hisun 800 it runs for about 35 minutes then stalls. Crank's over but has no spark. Let it sit for 15 to 20 minutes and it starts and runs again for about 35 minutes. Changed the CDI / ECU controller and still does it.
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By Steve B
My "R" light on the dash will not go out when I take the UTV out of reverse and put it into any other gear. Is this just the light switch issue or will this effect engine performance in the other gears?
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By joeam
I have a 2018 TW450E that runs in my yard and slow good just will not go down the road seems to be running out of fuel where should i start? I have replaced both fuel and air filter drained gas and tried a small auxiliary tank same issue i have ordered a new vacuum fuel pump to try next anyone in Texas that works on these?
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