1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Manual, Page 19Get this manual
Gearcase Gear Ratio Lubricant Capacity Shift Rod Height
13:28 (0.46) OMC Ultra-HPF Gearcase Lube 11 floz(330 ml) See Page 6-32
Ignition System Type Power Pack RPM Limit Ignition Coil Magneto Powered Capacitor Discharge
20-30 Rec- 6100 25 Comm- 5700
OMC PIN 582508 Spark Plug, Champion
Models 20, 25, 30 25 Comm