1992 Johnson/Evinrude EN 2.3 thru 8 outboards Service Manual, Page 64Get this manual
Fuel Tank Servicing2.3, 3.3 i tune-up or major repairDrain tank at an outdoor location,
away from all possible sources of ignitionRemoval
Drain and flush the fuel tank at least once year and at every
[!] 1Shut off fuel supply at fuel shut-off valve f21
2Remove upper engine cover by unsnapping the hold-down levers3Start removing the lower engine covers by removing the fou side screws