asking for a friend (seriously).

1989 Yamaha 175 hp precision blend
V6 oil injection

problem: the 3 cylinders on the port side are not firing.
The coil packs are good (swapped with known good from starboard side).
Wires from terminal block to coil pack all ohm out good
No obvious broken wires

what next?

Any feedback Greatly appreciated.

Check fuses.

Thanks. I found that cdi site with the troubleshooting pdf. Very informative.