BimotaBiker
New User
My 4230 started hesitating when I increased or decreased the throttle so I changed the fuel filter hoping that it would alleviate the issue. However, nothing changed and the hesitation continued to grow worse over time. I unhooked the fuel line on the tank side of the lift pump and fuel poured out. I then unhooked the fuel line on the pressure side of the lift pump (at the pump) with the same results. The tractor starts but is virtually unresponsive to the throttle although the linkage is working properly. My grandfather purchased the tractor new in the early 1970's and it currently has only 3,300 hours on it. Am I looking at a new injector pump here?