Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 64Get this manual
The following "STARTING CIRCUIT TROUBLESHOOTING FLOW CHART" is designed as an aid to troubleshooting the starting circuitThis flow chart will accurately locate any existing malfunctionLocation of "TEST POINTS" (called out in the chart) are numbered in diagram below Starter Switch
Neutral Start Switch
To Rectifier Regulator
NEUTRAL START SWITCH (LOCATED IN CONTROL HOUSING IF ENGINE IS EQUIPPED WITH REMOTE CONTROL)
Starter Solenoid