1998 Johnson Evinrude "EC" 150, 175 FFI Service Manual, P/N 520211, Page 112Get this manual
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26Remove six screws retaining water reservoir coverRemove cover and discard gasket27Inspect reservoir and passages for damage or obstruc-
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28If necessary, remove and replace plug and O-ring from reservoir29Remove hoses and wire from fuel filterRemove screws retaining filterRemove filter and heat shield30Inspect components for damage