I have been doing a lot of research to this new to me 225 EFI and there is a ton of info out there. SN OT749027. I was thinking of playing around with it and seeing if I can gain a little horsepower. I searched and found the fuel injectors from a 225 and a 250 seem to have the same part number. I read in other forums that going to a 250 efi controller will give a boost.
So, would this be correct?
Old age and treachery will overcome youth and skill
'99 Cobra 201D
Merc 250 Pro Xs 4 stroke
Good reading but I think I don't want to get that far into mods if I can avoid it. Thanks for the link. I did a search but didn't see this one.
Old age and treachery will overcome youth and skill
No, because your engine doesn't have a separate ignition controller. It has one PCM, which controls and processes all ignition and fuel functions.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
Yep, I figured that out when I pulled the cowl to take a look. Thanks for the response. This thing scoots the boat down the lake pretty well now, no additional speed necessary.
Old age and treachery will overcome youth and skill
I can tell you that this particular engine series was usually quite "hot" once broken in. Seen a couple of 225's that would spin pretty tall props right to the limiter.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
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