If your KX125 runs rough and won't stay on without giving it gas, it may indicate a fuel delivery issue or a problem with the carburetor. First, check the carburetor for dirt or clogs, and ensure the pilot jet and air screw are adjusted correctly. Also, inspect the fuel lines for leaks and make sure the fuel filter is clean. Lastly, check the spark plug for wear or fouling, as a weak spark can also cause similar symptoms.
I run mine at 33:1 it runs fine on that
runs ruff we changed throttle body runs better but still runs ruff and smokes black once and a while and no power have a scan tool snap-on solist no codes
may eed a tunup
You can't unless you call someone and they will give you gas.
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Mine Dose the same thing, i have been told that my fuelpump cank keep up, you could put a camero pump in it because it runs at 60psi and yours now runs at 12 to 16psi. your TBI already has a fuel regulator.
Check for codes in OBD. I have seen a bad engine coolant sensor do that.
More than likely a problem with the choke system.
Type your answer here... No medication unless it's approved by a vet. And Tylenol is fatal to dogs and cats do not give to them!
well if it cranks and runs the coils are ok the 02 sensor will make it run ruff and use more gas
bad piston rings maybe?
no unless it runs on diesle