CDI Electronics 531-0119B - M.E.D.S. Johnson Evinrude Upgrade ronstan ball bearing car - series 30 - headboard Three speed 10:1/5:1/1:1 gear ratio

Three speed 10:1/5:1/1:1 gear ratio with heat treated shaft

- Specifically designed for 9

dipstick left side (when viewed from rear of boat)

and rock damage

CDI Electronics 531-0119B - M.E.D.S. Johnson Evinrude Upgrade ronstan ball bearing car - series 30 - headboard Three speed 10:1/5:1/1:1 gear ratioCDI M. E. D. S. Individual Platform Diagnostics System Add On Upgrade For Johnson Evinrude Part Number: 531 0119B This kit is an add on upgrade. Only to be purchased if you already own a bundle or individual platform. M. E. D. S. Is an easy to use, yet sophisticated software program specifically designed for troubleshooting multiple marine engines. Using M. E. D. S. you can easily collect engine data, determine active faults, run engine tests &