1998 Johnson Evinrude "EC" 150, 175 FFI Service Repair Manual, P/N 520211, Page 123Get this manual
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21 Install check valves in pump and secure in place by pressing pin into retainer
25 Install lift pump onto housing and torque screws to 25-35 inIbs(2,8-4,0 Nm) in sequence shownPressure