CDI TOHATSU 3G2-06060-2

Function and technical context

The CDI (Capacitor Discharge Ignition) ignition coil is the central component of the electronic ignition system of Tohatsu and Mercury 2-cylinder outboard engines. This module generates the high-voltage sparks necessary to ignite the air-fuel mixture in the combustion chambers, precisely controlling the exact moment of ignition in each engine cycle. Working in synergy with the secondary coils and spark plug electrodes, it guarantees reliable ignition and constant power in all sailing conditions. A failure in this unit results in loss of spark, no start or erratic operation of the engine, compromising the safety and operability of the boat.

When to replace this part?

Typical symptoms of a defective CDI coil include difficulty starting, sudden loss of power while cruising, irregular operation, or no ignition at all without obvious wear on the spark plugs. Although there is no fixed temporary maintenance interval, it is recommended to inspect the condition of the coil during each seasonal inspection, especially after prolonged exposure to salt humidity or intense vibrations. Preventively replacing this part avoids unexpected strandings at sea and the costly emergency repairs that entails.

Equivalent manufacturer part numbers