Mercury - Mercathode Reference Electrode Tester - 91-8M0135998 Yamaha-F9-9--66N-Models-2005 Meets UL 1500 external ignition

Meets UL 1500 external ignition protection requirements

Ratcheting operation with ergonomic handle to prevent hand fatigue

Blue outer jacket resists against abrasion

but the quiet heroes tucked inside the engine — the ones that steady the noise

NGK-BKR6E-KU-10 - BKR6EKU1 NGK SPLUG 4PKWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer

Mercury - Mercathode Reference Electrode Tester - 91-8M0135998 Yamaha-F9-9--66N-Models-2005 Meets UL 1500 external ignitionUse with a digital multimeter to test the function of Mercathode systems. Senses an electrical current in the water when testing the Mercathode system. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.