Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 485Get this manual
STEERING ARM EXTENSION BRACKET INSTALLATION Secure steering arm extension bracket to each outboard's steering arm
STEERING COUPLER ASSEMBLY AND INSTALLATION
Position outboards so that they are facing straight forward(Distance between threaded hole centers of steering arm extensions MUST BE equal to distance between propeller shaft centerlines Lubricate inside of rubber sleeves with 2-4-C wITeflon and slide sleeves on steering couplerWork rubber bushings onto threaded ends of steering eyesThread jam nut on starboard steering eyeThread steering eyes equally into coupler, so that distance between hole centers of steering eye ball joints is equal to distance between threaded hole centers of steering arm extensionsExposed threads of steering eyes MUST BE of equal length and threads MUST NOT extend out from coupler more than 2-34 in(70mm)51889
aSteering Arm (Port Outboard Shown)Extension BracketLocking Retainer (2 Each Bracket)Bolts (2 Each Bracket) 1-14 in(31.8mm) LongTorque to 280 lbin(31.5 Nm), Then Bend Corner Tabs of Locking Retainers Up Against Flats on Each Bolt