1994 Johnson/Evinrude "ER" 9.9 thru 30 outboards Service Manual, Page 17Get this manual
Gearcase Gear Ratio Lubricant Capacity Shift Rod Height (Neutral)
12:29 (0.414) OMC Ultra-HPF Gearcase Lube floz(260 ml) See Page 6-21
Ignition System Type Power Pack RPM Limit Ignition Coil Magneto Powered Capacitor Discharge None OMC PI 583740 Spark Plug, Champion Sustained High Speed OL78V FIXED GAP
Model 10RP, 15RP
Recommended OL77JC4 0.030 in(0,8 mm)
Alternate L77JC4 0.030 in(0,8 mm)