Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 481Get this manual
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STEERING SYSTEM TENSION ADJUSTMENT (PARALLEL ROUTED STEERING CABLES)
IMPORTANT: For proper operation of this dual cabledual outboard steering installation, there MUST BE proper tension in the steering systemNOT ENOUGH tension will cause slack (play) in steering systemTOO MUCH tension will cause steering cables to bindPerform the following steps to correctly adjust tensionLoosen adjustment nuts and pull steering cable mounting tube (by hand) away from end of steering cable (to remove slack in steering system)Tighten adjustment nuts against mounting bracket and check system for slack (play)If steering system is too tight, readjust tube toward end of steering cable or, if too much slack (play) exists in system, readjust tube away from end of steering cableTighten nuts against mounting bracket and readjust, if necessary
- Steering Cable Mounting TubeAdjustment NutsAdjust Tube in This Direction to Remove Slack from Steering SystemAdjust Tube in This Direction to Reduce Tension from Steering System