Hey I have a bobcat s650 skid steer that's not starting most of the time, and wen it does start it doesn't keep up even at full throttle I've changed the priming pump with the little strainer inside and I've changed the fuel filter and the priming bulb but same issue any suggestions what could be the problem ? PS.. I'm in the caribbean so a bobcat dealer isn't an option as we don't have much of that here.