1999 Volvo Penta "WT" Models Workshop Manual, Page 37Get this manual

1999 Volvo Penta "WT" Models Workshop Manual, Page 37

Engine Will Not Crank Starter Circuit Check:
Battery condition: weak, dead, sulfated, bad cells Battery cables for loose or corroded connections Shorted or open ignition switch Starter motor and solenoid for shorts, grounds or open circuits Starter assist solenoidstarter relay Circuit breakers Wiring from battery to ignition switch

See ElectricalllgnitionFuel Service Manual

Engine Cranks, But Will Not Start
Ignition CircuitCheck:
Primary circuit wiring from ignition switch to ignition coiLignition module Secondary circuit wiring from coil to spark plug Spark plugs for proper gap, fouling, burned electrodes, cracked or dirty insulator

See ElectricalIgnitionFuel Service Manual

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