Mercury Mariner Service Manual 6, 8, 9.9 210CC Sailpower, Page 137Get this manual
SHIFT CABLE INSTALLATION and ADJUSTMENT TO ENGINE
2Manually shift engine into neutral position (propeller will rotate freely in both directions)3Adjust brass barrel (a) on shift cable to attain the same distance between barrel and hole in end of shift cable as exists between barrel retainer and shift lever pin (b)4Slip brass barrel into barrel retainer and then place end of shift cable on shift lever pin (b) and lock in place with cable retainer (c) as shownSecure barrel after throttle cable is installed
1If remote control has neutral lock release (a), secure the release in the depressed position using piece of tape, as shownNow you can locate the true neutral detent
&WARNING