1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, P/N 507875, Page 37Get this manual
Preseason Service 1Check gearcase lubricationIf leakage is evident, gearcase seals may need attentionCheck lubricant level in power trimtilt reservoirSee Lubrication, this section
i ribbed portion of the spark plug ceramics and the opening
2Apply light coating of OMC Triple-Guard grease to the
of the spark plug coversConnect spark plug leadsMake sure spark plug boots are not cracked or torn
i battery is charged, the acid solution inside the battery gives
3Check water level in battery, then chargeWhen the
off hydrogen gas which can explode if ignited by spark or open flameIf hydrogen gas is not able to leave the battery (vents are clogged), the battery itself may explodeTherefore, when charging batteries, make sure that battery is vented to atmosphere and lots of fresh air is in the areaMake sure no sparks or flames are presentDo not short across battery terminals to check battery conditionInstall and connect battery4Reconnect spark plug leads
i sure the steering, shift, and throttle systems are attached