1997 Johnson Evinrude "EU" 9.9 thru 30 2-Cylinder Service Manual, P/N 507263, Page 19Get this manual
Gearcase Gear Ratio lubricant Capacity Shift Rod Height 13:28 (0.46) 25 Comm 30SPL12:21 (0.57) Ultra-HPF Gearcase lube
11 floz(330 ml) 25 Comm 30SPLfloz(245 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 PIN 582508 Spark Plug, Champion Models 20, 25, 30SPl, 30 25 CommRecommended Ol82C 0.030 in(0,8 mm) Ol16Vor l16V Extended Idle