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Good points Joe, thank you for your reply.

That makes sense! Simple enough as well. Thank you for your feedback Phil.

Hello,

2008 Mercury Pro XS 225
Hoping to get some advice/thoughts on best practice to get a sitting 225 Pro XS two-stroke up and running again. Background: the motor was last ran in April of...

I had a 1999 200HP Mariner EFI do this and it turned out I was losing an injector bank in the ECM/PCM/motors main computer (seems there are many acronyms people use for that). I had a hell of a time...

Thank you for your reply and excellent suggestions. I will be sure to relay that information and make sure we include it in the repair. Another great point, sometimes new parts fail too; so very...

Motor is 2008 Mercury 225HP Pro XS; serial number 1B518973

Had the OEM air compressor replaced at 180 hours. Bought the updated black case Merc compressor in November. Installed the compressor,...

Just wanted to follow up on the solution to this issue. Indeed it was thermostat(s). I replaced both with new and when I fired up the motor it climbed right up to 135 degrees then quickly cooled to...

Yeah I've read through both links. Also I already cleaned the air compressor screen. I thought Norris was referring to the strainer inside the mid section. Was wondering what's involved in getting...

Thanks for the replies. I have the Seloc manual for the motor, but not real descriptive on the poppet relief valve. Dumb question maybe, but is the genuine Mercury service manual more detailed? I...

I keep hearing or reading about how the minimum idle temp for a Pro XS or Opti has to be at least 120 degrees prior to running up RPM and putting a load on the motor or you are at serious risk of a...

Hello,

I have a (new to me) 2007 225 Pro XS ser#1B518973 with 150 hours that is not getting above 109 degrees at idle. I run the boat in Arizona desert lakes that never drop bellow 50 degree...

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