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View Full Version : Mercury Tech Help with 2005 225 EFI



sxmerc
04-24-2011, 09:16 AM
I have lost about 500 RPM off the top end on this thing, and I cannot find a damn thing wrong. Nothing on this rig has changed, but I'll be dipped if I can find ANYTHING wrong. Wondering if I should look into sending the injectors out? Any suggestions would be greatly appreciated. Thanks in advance.:confused::confused:

rchevelle71
04-25-2011, 06:56 AM
check the screen at the fuel presssure reg.

sxmerc
04-25-2011, 08:31 PM
Thanks for the suggestion, I'll check that along with the screen in the VST at the fuel pump.

shooter1
04-25-2011, 11:19 PM
Reeds!!!! If you have a crappy idle i'd look at reeds. I went through this last year. It also wasn't the first time on my '98 225 EFI. Went with CCMS reeds and have had excellent luck with them.

sxmerc
04-26-2011, 05:06 PM
Idles and runs fine, just lost about 500 RPM at the top end. Thanks though.