1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, P/N 507875, Page 74Get this manual
General Safety Warnings The engine cover is machinery guardUse caution when conducting tests on running enginesDo not wear jewelry or loose clothingKeep hair, hands and clothing away from rotating flywheel To avoid accidental starting of engine while servicing, twist and remove all spark plug leads Check nonmetallic fuel systems parts for signs of deterioration, cuts, cracking or abrasionAlways replace with specified parts Do not attempt to run engine with any fuel system component disconnected or removedFuel leakage could contribute to fire or explosion After completing any service procedure, momentarily pressurize fuel system and check for leaks! Fuel leakage could contribute to fire or explosion When using shop air for cleaning or drying partsaBe sure air supply is regulated to not more than 25 PSI (172 kPa)bBe sure you use appropriate eye protection to avoid personal injury Replace any locking fastener (locknut or patch screw) if its locking feature becomes weakDefinite resistance to tightening must be felt when reusing locking fastenerIf replacement is indicated, use only authorized replacement or equivalent