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vibration during operation
Reconnect the battery and run the engine on a water supply to check for proper cooling system operation
Remove Old Injector: Unbolt the fuel rail and carefully remove the old injector
ensuring proper driveshaft and shift rod alignment
Ensure they are installed in the correct orientation (primary sealing lip facing the oil)
6AU-14301-40 Thermostat for Yamaha T9.9G F9.9F | JLM Marine family-yamaha-8sn vibration during operation6AU 14301 40 Thermostat for Yamaha T9. 9G F9. 9F JLM Marine This high quality aftermarket thermostat is engineered to fit Yamaha 9. 9HP outboard engines, including the T9. 9G and F9. 9F series. Designed to regulate engine temperature efficiently, this thermostat ensures optimal performance and longevity for your outboard motor across a wide range of operating conditions. This thermostat directly replaces Yamaha OEM part numbers 6AU 14301 40, 6AU 14301