trevorcday said in a post 04/01/2002 that you could uprate a Mercury 50 2002 to 60hp by changing the plastic restrictor plate behind the carbs for one from a 60 with larger holes.<br /> Does this mean that the carb jets remain the same? Any idea of the Mercury Part No for the larger hole plate? <br />I have been looking at new twin Mercury EFi 50's, upgraded to 60, but I have been told that to upgrade the EFi models, I will need new electronic control units!<br />So back to how I can upgrade the existing 1996 & 1997 engines?
