My Kobelco SK60's throttle control is not working right. Machine runs and idles fine, but increasing the throttle to full doesn't move the stepper motor to full and it stops 1/4 up. Returning the throttle back down to idle brings the stepper below idle and the engine almost stalls. I checked the resistance of the throttle lever potentiometer and it seems to be working fine. Is it just as simple as replacing the stepper motor?
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