1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 317Get this manual
1231 6Place throttle lever spacer over throttle lever bushing in the throttle lever assembly
i cam bossPlace countersunk washer on throttle lever
7Place throttle lever assembly onto shift lockout
assembly with countersink facing outwardSecure throttle lever assembly using new patch screwTighten screw to torque of 25-35 in.lbs(2,8-3,9 Nm)
8If removed, install lever separator plate to housi ingApply OMC Screw Lock to threads of the two