1989 Johnson Evinrude "CE" 120/125/140/185/200/225/300 HP Service/Repair Manual P/N 507758, Page 208Get this manual

1989 Johnson Evinrude "CE" 120/125/140/185/200/225/300 HP Service/Repair Manual P/N 507758, Page 208

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Thermostat Servicing Disassembly
f5l 6 Inspect the diaphragmIt should be pliable and free ofcracks or abrasionsThe vent hole must be open7 Unscrew the two halves of the thermostat housing Remove