1991 Johnson/Evinrude EI Outboards 2.3 thru 8 Service Manual, Page 187Get this manual
Midsection Adjustments2.3, 3.3 Tilting Friction
lsi Tighten the tilt shaft nut only enough to hold the motor in
any position of tilt
r::=J DO NOT overtighten, as doing so will increase the pressure
required to tilt the motor when an obstruction is hitFailure to tilt when hitting an obstruction can cause serious damage to the motorSteering Friction
Isl Adjust the steering friction