1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 363Get this manual
MANUAL STARTER
Neutral Interlock Adjustment
1Place shift lever in neutral position2The slide on the end of the cable should line-up with the the neutral start mark on the cover as shown3If adjustment is required, remove the cable and rotate the cable to obtain the correct adjustmentIMPORTANT: Check the operation of the neutral interlockThe starter rope must not pull out when the shift handle is in forward or reverse position