Looks to be pretty straight forward job. Instructions say disconnect negative terminals from both batteries and electrical connection at solenoid, disconnect linkage from solenoid to injection pump, remove bolts from solenoid, remove and install new solenoid, install bolts, hook up linkage, battery cables and connection to solenoid. To check adjustment of linkage, turn ignition switch on but do not start engine. Pull up on the lever, if solenoid is working correctly, lever should stay up. Measure from bottom of solenoid bracket to top of injector pump shutdown lever pin. Should be 2 41/64 inches. I have never done this job, just trying to be helpful. bg