1995 Johnson Evinrude "EO" 60 LV 90, 115, 150, 150C, 175 Service Manual, P/N 503151, Page 30Get this manual
AnodesTesting and Replacement Erosion or disintegration in salt or brackish water indicates the anodes are performing their functionThe anodes should be inspected at intervals and replaced when necessary, or corrosion of the engine will increase
INote If any anode
has been reduced to 03 its original size (113 eroded), it must be replaced! Test for proper installation of the anodeCalibrate an ohmmeter on high ohms scaleConnect one meter lead to powerhead ground and the other lead to the anodeBe sure the surface of the anode is clean to make good contactThe ohmmeter should show low readingIf not, remove the anode and clean the area where the anode is installedThe mounting screws and the anode itself should also be cleanedInstall and retest
INotel Do not paint or coat the anodes or their mounting surfaces
Warning Horn
A warning horn is built into the OMC prewired remote control or is part of the OMC accessory wiring harnessThis feature alerts the operator to several critical operating conditionsDepending on the engine model, the conditions might be: Test Note To avoid possible powerhead damage, be sure the warning horn is in operating conditionIt is advisable to check the horn at the start of each boating season and periodically during the season Overheatcontinuous tone No Oilcontinuous short pulses Low Oilshort pulse every 40 seconds V6Fuel Restrictioncontinuous tone at or near full throttle