1989 Johnson/Evinrude "CE" 60 Thru 70 Models Service Repair Manual P/N 507756, Page 171Get this manual
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10 Place the exhaust housing assembIy in the steering lower mount bracket and
Torque the upper mount nuts to 30-32 ftIbs(41-43 Nm) Torque the lower mount screws to 24-26 ftIbs(3235 Nm)