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I have a 2005 Mercury 225 Optimax. One of them will not rev
I have a 2005 Mercury 225 Optimax. One of them will not rev when switched into neutral and theres a 0 block pressure on it. Theres also an AL on the same motors smart gauge … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
It's an optimax 225 2006. Rough idle. i can send a video of
rough idle. seems to hit hard on a detonation every second or 3 seconds. runs fine over 1,400rpm… read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
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I have a 2006 225 pro XS optimax, how do you replace the
Hi I have a 2006 225 pro XS optimax, how do you replace the throttle position sensor? What is procedure and how difficult? … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I have a Mercury Optimax 225HP Motor# 0T109979 The check
I have a Mercury Optimax 225HP Motor# *****The check engine light came on and was starting to run a little rough, engine not idling correctly and would die after 10 seconds or so. I checked the fuel s… read more
Jason
Jason
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Vocational, Technical or Trade School
22,043 satisfied customers
Im having an issue with my DTS control. 2008 Mercury Optimax
Im having an issue with my DTS control JA: Sometimes things that you think will be really complicated end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the tricks a… read more
Charles
Charles
Certified Mercury Tech
5,752 satisfied customers
I have a 27ft Famous Craft with twin 2007 250HP Mercury
I have a 27ft Famous Craft with twin 2007 250HP Mercury Optimax Outboards. My starboard engine run well in gear and reaches 5400 RPM's at top end consistent with my Port Motor, however when in Neutral… read more
Charles
Charles
Certified Mercury Tech
5,752 satisfied customers
I just replaced the MPR on my 2002 mercury optimax 225. The
I just replaced the MPR on my 2002 mercury optimax 225. The engine will turn over, but not fire. Is there a reset somewhere? … read more
Charles
Charles
Certified Mercury Tech
5,752 satisfied customers
1999 Mercury optimax has air in the fuel rail and low air
1999 Mercury optimax has air in the fuel rail and low air pressure motor will not run … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
4 beeps. Hold on, still typing. 1998 optimax. 4 beeps.
1998 optimax. 4 beeps. replaced oil resevoir. works. bypassed by jumper anyway. as for the fuel. drained the gas tank, added new fuel. cleaned out the fuel filter. opened the vapor separator drained out all the fuel. still same symptom. one other symptom. when running at 1800 rpm, (more than idle obviously) , it smokes. not sure if it is related problem.… read more
Charles
Charles
Certified Mercury Tech
5,752 satisfied customers
I have a year 2000 mercury optimax 200hp 2 stroke outboard.
I have a year 2000 mercury optimax 200hp 2 stroke outboard. The engine has been overhauled and seems mechanically fine. However there is one problem, when decelerating fairly quickly the engine can st… read more
Charles
Charles
Certified Mercury Tech
5,752 satisfied customers
1999 200 Mercury Optimax, have a consistent intermitten beep
1999 200 Mercury Optimax, have a consistent intermitten beep when I shift into neutral. Brief history; Start motor up with throttle forward in neutral. drop into straight up and down position, no beep… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I have purchased 2 2002 mercury 150 optimax of a mate one
I have purchased 2 2002 mercury 150 optimax of a mate one is for spares. We have fitted the good motor with 320 hours to my boat it starts like a dream cold and runs well under revs, however it's hard… read more
orcamarine
orcamarine
Proprietor
Vocational, Technical or Trade Scho
7 satisfied customers
I have a Mercury 225 Optimax OT587004 that the customer jumped
I have a Mercury 225 Optimax OT587004 that the customer jumped the starter solenoid with his 24 volt battery system and melted the wire loom and cooked the alternator...we have replaced the wire loom … read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I asked a question on 8-2-11 regarding a problem with a Mercury
I asked a question on 8-2-11 regarding a problem with a Mercury Optimax 175 that seems to be loading up with fuel between 1900 and 2100 rpms. The answer was to say he had no answer which cost me $58 t… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
My Optimax 225 is sluggish on takeoff but will run 5500 to
My Optimax 225 is sluggish on takeoff but will run 5500 to 6500 rpms once on plane. Wondering what could be cause?… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I just purchased a 1999 22 Aquasport with a 1999 225 Mercury
I just purchased a 1999 22' Aquasport with a 1999 225 Mercury Optimax Outboard with 624 hours. I paid for a professional Certified Marine Survey. The Compression test was good on all cylinders and the… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
twin 05 225 Optimax, starboard engine runs rough at low rpms
twin '05 225 Optimax, starboard engine runs rough at low rpm's (under 2000) even with new plugs, runs great at speed, seems to be burning more than usual fuel and noticing more carbon build up on top … read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,730 satisfied customers
135hp mercury optimax. Starts runs, but doesnt like to keep
135hp mercury optimax. Starts runs, but doesn't like to keep running when you idle it down therefore, can't put in gear and accelerate. The "tire valve" on the top of the fuel rail will top out at 55p… read more
Mechman45
Mechman45
Vocational, Technical or Trade School
152 satisfied customers
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