1989 Johnson Evinrude "CE" 120/125/140/185/200/225/300 HP Service/Repair Manual P/N 507758, Page 430Get this manual
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1491 31 Remove the high pressure port O-ring 1501 32 Remove the trim-down relief valve and spr ing 33 Clean and inspect the components of the trim-downpump relief valve Replace the rubber sealif neces