I bought an old 90s Bayliner that had a Mercury (Force) Sport Jet 90hp engine (0E prefix serial number) and most of the wiring was corroded so I wanted to add all new connectors.
It was difficult to work out the current wiring configuration because the cables were either dirty or just hard to see so I spent some time searching for wiring diagrams which proved to be difficult as there are several variations of this engine some are CDI, some are CDM, some has a rev limiter etc.
My particular engine is a 3-cylinder CDI with no rev limiter, there are a pair of twin CDI controllers the front one (the left one in the photo) fires cylinders 1&2 and the rear (right in the photo) fires cylinder 3.
3-Cylinder Variants
Terminal | CDI Wire | Stator / Trigger Wire |
1 | CDI2 BROWN/YELLOW | STATOR BROWN/BLACK/YELLOW |
2 | CDI2 BROWN/BLUE | N/A |
3 | CDI1 BROWN/YELLOW | STATOR BROWN/YELLOW |
4 | CDI1 BROWN/BLUE | STATOR BROWN/BLUE & STATOR BROWN/BLACK/BLUE |
5 | CDI2 WHITE/RED | N/A |
6 | CDI2 WHITE/GREEN | N/A |
7 | CDI2 WHITE/ORANGE | TRIGGER CYL3 WHITE/BLACK/ORANGE |
8 | CDI2 WHITE/YELLOW | TRIGGER CYL3 WHITE/BLACK/YELLOW |
9 | CDI1 WHITE/GREEN | TRIGGER CYL2 WHITE/BROWN/GREEN |
10 | CDI1 WHITE/RED | TRIGGER CYL2 WHITE/BROWN/RED |
11 | CDI1 WHITE/ORANGE | TRIGGER CYL1 WHITE/BROWN/ORANGE |
12 | CDI1 WHITE/YELLOW | TRIGGER CYL1 WHITE/BROWN/YELLOW |
Cylinder Variants
Terminal | CDI Wire | Stator / Trigger Wire |
1(4) | CDI2 BROWN/YELLOW | STATOR BROWN/BLACK/YELLOW |
2(3) | CDI2 BROWN/BLUE | STATOR BROWN/BLACK/BLUE |
3(2) | CDI1 BROWN/YELLOW | STATOR BROWN/YELLOW |
4(1) | CDI1 BROWN/BLUE | STATOR BROWN/BLUE |
5(4) | CDI2 WHITE/RED | TRIGGER CYL4 WHITE/BLACK/RED |
6(4) | CDI2 WHITE/GREEN | TRIGGER CYL4 WHITE/BLACK/GREEN |
7(3) | CDI2 WHITE/ORANGE | TRIGGER CYL3 WHITE/BLACK/ORANGE |
8(3) | CDI2 WHITE/YELLOW | TRIGGER CYL3 WHITE/BLACK/YELLOW |
9(2) | CDI1 WHITE/GREEN | TRIGGER CYL2 WHITE/BROWN/GREEN |
10(2) | CDI1 WHITE/RED | TRIGGER CYL2 WHITE/BROWN/RED |
11(1) | CDI1 WHITE/ORANGE | TRIGGER CYL1 WHITE/BROWN/ORANGE |
12(1) | CDI1 WHITE/YELLOW | TRIGGER CYL1 WHITE/BROWN/YELLOW |