1988 Johnson Evinrude "CC" 9.9 thru 30 Service Manual, P/N 507660, Page 39Get this manual
Gearcase Gear Ratio
13:28 (0.46) 25 Comm 2812:21 (0.57)
OMC Hi- Vis Gearcase Lubricant
Lubricant Capacity Shift Rod Height (Neutral) Type Power Pack Power Pack RPM Limit Ignition Coil
9-11 floz(264-330 ml) 25 Comm 286-8 floz(196-245 ml) None Magneto Powered Capacitor Discharge OMC PI 582285 25 Comm- OMC PI 582261 (Limiter Power Pack) 25 Comm- 5100 RPM OMC PI 582508
Ignition System
Spark Plug, Champion Sustained High Speed QL78V FIXED GAP NA
Recommended 20,25 28,30 25 CommOL77JC4 0.040 in (1,0 mm) OL78V FIXED GAP UL77V FIXED GAP
Alternate L77JC4 0.040 in(1,0 mm) L78V FIXED GAP NA
Alternate L78V FIXED GAP NA