Kubota standby generator displays E08 and stops cranking after a few attempts.

Safety first: Disable auto-start and disconnect the negative battery cable before working on the starter circuit.

• Listen during crank: Reconnect battery temporarily and attempt a start while listening. A single click suggests solenoid issues; slow crank suggests weak battery or high resistance; no sound suggests control circuit fault.
• Check battery and cables: Verify battery voltage under crank (should stay above ~9.6 V). Inspect positive and ground cables from battery to starter and engine block. Clean and tighten all connections.
• Test starter solenoid: With a multimeter, confirm that the solenoid receives 12 V on the small control terminal when the controller commands a start. If voltage is present but the starter does not engage, replace the starter solenoid or complete starter assembly.
• Check engine rotation: With battery disconnected, use a socket on the crankshaft pulley bolt to manually rotate the engine. If it will not turn, internal engine damage or seized accessories may be present (technician required).
• Inspect safety interlocks: Verify that emergency stop switch is released and any door/hood interlocks are closed, as these can inhibit cranking on some Kubota models.