1989 Johnson Evinrude "CE" 9.9 thru 30 Service Repair Manual, P/N 507754, Page 318Get this manual
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Assembly
1 To reassemble control handle, place control handle knob on control handle and secure with screwTighten screw to torque of 20-30 inIbs(2,3-3,4 Nm) Position trimtilt switch into control