A capacitor discharge ignition, also known as a CDI, is a type of electronic ignition that holds a charge before discharging it through an ignition coil to ignite the spark plugs in a gasoline engine with great force. The capacitor charge provides the ignition. The capacitor merely charges and discharges in a brief period, allowing sparks to be well-produced. A capacitor is well-charged by an electrical current, which causes a capacitor discharge ignition. This kind of ignition quickly develops a charge. A CDI ignition first creates a charge and stores it before releasing it to the spark plug to light the engine. This power travels through a capacitor to an ignition coil, which serves as a transformer and increases the power by letting the energy pass through it rather than absorbing it. As a result, the CDI ignition systems enable the engine to continue operating for as long as the power source is well-charged. Below is a block diagram of CDI.
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Specifications:
1969-1975 (80 & 85HP - 4 Cyl.) 1967-1979 (90,110,115,135,140 & 150HP - Inline 6 Cyl.) Outboard Engines w/ a Battery Powered Distributor
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CDI Electronics
1969-1975 (80 & 85HP - 4 Cyl.) Outboard Engines w/ a Battery Powered Distributor, Replacement Disc OnlyThis product replaces:393-3236, 3236, 134-3236, 134-3236S
CDI Electronics
The trigger is tucked underneath the flywheel next to the stator (or timer base). The ignition system's trigger, which informs the CDI unit (power pack or switch box) when to release voltage to the...
CDI Electronics
The name "trigger" was coined by Mercury Marine. This component positions beneath the flywheel. The mechanical advance of the trigger regulates the timing on an outboard boat motor. The outboard...
CDI Electronics
The CDI determines the most common causes of component failure and designs their replacements to be better than the original. The CDI Electronics 134-6454 Mercury and Mariner Trigger fits the...
CDI Electronics
Mercury (1995 (120HP) SportJet) Force (1991-1995 (120HP)This product replaces:667-13470294, 736983851529, 817029A4, 817029A11
CDI Electronics
The following 4-cylinder engines are compatible with the CDI Electronics 134-9021-4 Mercury/Mariner Trigger: 80 JET, 100, 115, and 125 HP. The part numbers were replaced: 99021A 2, 99021A 6, and...
