1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, P/N 507875, Page 34Get this manual
Off-Season Storage Use the following procedure to properly prepare Johnson and Evinrude outboards for extended periods of non-useThese steps are intended to protect the engine during storage and simplify the preseason servicing procedure1Stabilize the engine's fuel supply with OMC 2+4 fuel condit ionerAdd one ounce (30 ml) of OMC 2+4 fuel conditioner for every gallon (3,8 litres) of gasoline
ill gine's propeller before starting engine to prevent accidental contact with moving propeller
When using flushing attachment, always remove en-
INotel Use flushing attachment if you operate the engine on a
trailer or dolly to prevent engine or water pump damage2Run the engine at approximately 1500 RPM for five minutes to ensure that the entire fuel supply system and the engine's carburetors are full of stabilized fuel
3Prepare an engine "storage mixture" in shop V6 six-gallon tank, PIN 397767 The mixture should include:
gallons (19 litres) of fuel quarts (2 litres) of OMC Storage Fogging Oil PI 171703 pint (0,5 litre) of Evinrude or Johnson Outboard Lubricant pint (0,5 litre) of OMC 2+4fuel conditioner PI 174275