YAMAHA IGNITION COIL 6R3-85570-01 REC6R3-85570-01

Function and technical context

The ignition coil is the component responsible for generating the high voltage necessary to produce the spark in the spark plugs of the marine engine. Integrated into the ignition system, it transforms the low voltage current from the battery into high voltage pulses that ignite the air-fuel mixture in the combustion chambers. Its correct operation is essential to guarantee reliable ignition, efficient combustion and optimal performance of the propellant, especially in demanding navigation conditions where any ignition failure can compromise the operability and safety of the vessel.

When to replace this part?

Symptoms of coil degeneration include difficulty starting the engine, intermittent misfires, loss of revs, or rough running under load. It is recommended to inspect the condition of the coil during each seasonal maintenance and, if ignition problems are detected that are not resolved by checking the spark plugs and cables, proceed with its preventive replacement. Changing the coil at the first signs of wear avoids emergency repairs in navigation and ensures constant ignition under all operating conditions.

Equivalent manufacturer part numbers