1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 136Get this manual
f61 rJl 1019l 12 Remove the three nuts Q) and six washers from the lower pan support studs
11Pull the water indicator hose off the powerhead nipplethe six retaining screws, powerhead to the exhaust
1nl 13The powerhead can now be removedAttach OMC Universal Puller PIN 378103 to the flywheelThread OMC Lifting Eye PIN 321537 into puller body until it seats firmly against crankshaftUsing hoist, lift the powerhead from the exhaust housing'1Q1 14Remove the exhaust and water tube assembly powerheadRemove and discard the gasket