How to Troubleshoot a 1978 Kawasaki 650
- 1). Check the 650's fuel level and refuel if necessary. Be sure to use the recommended grade of fuel to ensure optimum performance from the engine.
- 2). Inspect the battery to determine if the connections are solid and that it is providing sufficient voltage for the engine to start.
- 3). Wipe clean the spark plug of any dirt or corrosion using a clean, dry cloth. The spark plug in a 650 should have a gap of 0.028 to 0.031 inch. Replace if necessary.
- 4). Remove any dirt or debris from the fuel filter, air filter or fuel lines, as this can prevent a proper flow of fuel through the engine. Replace any of these units if necessary.
- 5). Check the fuses, as a blown fuse can prevent the engine from starting.
- 6). Clear the radiator of any dirt or debris. Also, inspect the coolant level inside the radiator. Any blockage, or a low level of coolant, can cause overheating.
- 7). Replace the oil if it appears dirty or has deteriorated over time, as this can cause the engine to overheat or the clutch to not properly disengage.
- 8). Fill the tires with the recommended amount of air, as low tire pressure can cause issues with steering and stability.
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