1978 Johnson 175, 200, 235 HP Outboard Service Repair Manual P/N JM-7810, Page 36Get this manual
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If the pl'eSSUre is below 2-12 psi (17 kPa) with the gll (22.7 litres) tk, stop tl1e giPressurize the fuel sst with the bulbWhile hldig the pl'essure, ist the us, lines and fittings for fuel leakageRe