Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 52Get this manual
Trigger Coil Removal and Installation 1Remove and install the trigger coil as shown2Fasten trigger coil harness to stator harness with sta-strap
NOTE: Flywheel and Switch Box were removed in picture to show proper wire routing3Set the air gap at 0.030 in(0.77 mm) between the trigger and flywheel4Refer to Section Part for Wiring Diagrams