1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 338Get this manual
How Can Loss of Steering Control be Minimized? ,
When Rigging or after Servicing
Use steering system recommended by the motor manufacturer which meet Marine industry Safety Standards (ABYC)Read, Understand, and Follow manufacturers InstructionsFollow warnings marked" closelyAssemble Parts Carefully Make Adjustments Carefully Keep Parts Moving Freely Lubricate Parts as Shown in Manuals Use the bolts, nuts, and washers supplied with steering attachment kits they're Special Locking Type That Won't Loosen, Rust, or Weaken
When Transom Mounted steering systems (see picture) are used, check to uncover possible Trouble! During this procedure, steering parts Must Not Bind Must Not Touch Other boat, motor or accessory Parts in Transom Area