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I have some good news, went to the lake today and YES no beeps. Thanks to all on BBC for your help, Carl

ALL FIXED and headin' to the lake!

All the posts really helped with this problem. THANKS to all that posted here.

EXACT same problem as Ed R. Wood stuck in the port side thermostat.
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I just found an old post from Don Weed on how to remove the thermostats. Going to give it a whirl.
Another note, I ran my Optimax with muffs today, checked the temps of each thermo, starboard side...

Question, I am wanting to check my thermostats today, but the thermostats hex head bolts have the fuel rail lines in the way. Not having done this before, do I remove the rail fuel line from the fuel...

Think we are getting some where. I purchased new thermo and poppet gaskets today. I am going to check for debris. Let you know what I find. Thanks again everyone, Carl

Thank you, looks like a few more parts to replace. I will update everyone after the repairs. Thanks Again

Well here I am with an update. Thank you Don for verifying the water pressure sensor number. How I got the part # was I called Mercury and they gave me the part number. So this weekend I installed...

Ok thank you, that is the sensor I am looking at, it is positioned at the aft and attached to the upper part of the coils bracket. I called Mercury to get the part number. In my previous reply the...

Question, On my Optimax 225 I see a sensor on the aft of the outboard that has a grey water line that plugs into one side and the wiring harness into the other side of the sensor. The grey water line...

I do not have a smart craft gauge, so I can only go by the print out. See attachment.
With a new impeller already installed before the data sheet printout, what should the the water pressure range...

Thank you, can you explain what the block Pressure sensor does? I ask because I have had this to the marine dealer where I purchased the boat numerious time and they tell me nothing is wrong. All I I...

Merc 225 Pro XS Optimax 2015
Serial # 2B110146

I purchased this used 2015 Ranger Z119 last fall. Boat is clean and motor runs strong.

The issue I'm having with the outboard always occurs...

Looking for some help. I recently purchase a Ranger 2015 Z119c with a Merc Optimax 225 Pro XS, serial # 2B110146, model # 1226P73BD from a local boat dealer, awesome boat and the engine read out says...