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I have a dead 135 black max. i purchased used 225 optimax
I have a dead 135 black max. i purchased used 225 optimax (two of them) 2001. Can i reuse the black max controls and wiring harness? The dual installation controls obviously will not work. I dint think. I am installing only the right hand motor. The combined wiring harness look like a real mess (complicated). thankyou ron … read more
Charles
Charles
Certified Mercury Tech
5,118 satisfied customers
2003 mercury optimax 200hp outboard Engine Serial #:
2003 mercury optimax 200hp outboard Engine Serial #: ot794763, psi Guage at idle between 20 and 30 psi, is this normal? Water/pee is very strong and no warn siren. The only other problem is my trim Gu… read more
Jason
Jason
Marine Mechanic
18,742 satisfied customers
I'm considering purchasing a 2004 Stingray 185LS Bowrider,
Hello,I'm considering purchasing a 2004 Stingray 185LS Bowrider, 18'-6", with 135 hp VolvoPenta outdrive - its in perfect condition, fresh water only. Only issue - the digital hour meter died 2 years … read more
Jason
Jason
Marine Mechanic
18,742 satisfied customers
I will buy a new boat and engine soon. I have a 1994 Force
I will buy a new boat and engine soon. I have a 1994 Force which performs adequately. The dealer said I would be happy with the Merc. 115 four stroke. I am concerned about starting power to snatch a s… read more
Jason
Jason
Marine Mechanic
18,742 satisfied customers
2003 OPTIMAX 135 OVERHEATING on starport side only? thermostats
2003 OPTIMAX 135 OVERHEATING on starport side only? thermostats changed, temp sensors water pumps ect, changed many times. always acts the same for 5 or 6 years now. install new water pump, get great … read more
Greg Robinson
Greg Robinson
Senior service manager
Vocational, Technical or Trade Scho
199 satisfied customers
2002 merc optimax 225 saltwater. Just bought boat and ran
2002 merc optimax 225 saltwater. Just bought boat and ran it for 3 hours. Next week it would not strait. Sat for two hours and started right up and ran fine. Next day would not start. Fuel pump is com… read more
Charles
Charles
Certified Mercury Tech
5,118 satisfied customers
2004 optimax on average how many hours can i expect to get
2004 optimax on average how many hours can i expect to get out of this motor. All factory service recommended has been done. currently 1175 hours, runs good!… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Hey bud...I have a 2004 150 Optimax that runs like a dream.... But,
Hey bud...I have a 2004 150 Optimax that runs like a dream.... But, the last couple times out i have had issues with the "up" tilt control. Very strange...works fine then all of a sudden after a run a… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a mercury 175L OP and the last fishing trip the alarm
I have a mercury 175L OP and the last fishing trip the alarm went off i didn't know if it was overheating or if something else went wrong,also i was only getting about 4000 rpms. its been sitting for … read more
Jason
Jason
Marine Mechanic
18,742 satisfied customers
I have a 17.5 Lund Tyee (rated to 140 hp) and I fish Lake
I have a 17.5' Lund Tyee (rated to 140 hp) and I fish Lake of the Woods in northern MN & Canada with 4 adults in the boat. Mercury makes 115, 125 & 135 hp Optimax motors. Other than the small differen… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 2004 Mercury 200 Optimax. The fuel compressor had
I have a 2004 Mercury 200 Optimax. The fuel compressor had blown on three different occasions while offshore...once at 300 hrs. (under warranty) again at 750 hrs. and last week at 1650 hours. This sit… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
found a used boat i want to buy with a 2008 Mercury 135hp 2
found a used boat i want to buy with a 2008 Mercury 135hp 2 stroke optimax on it, it is being sold on craiglist by the second owner of the boat. the boat is going to the shop this week to have the mot… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Mercury 115 Optimax I have 08 Optimax 115, when I am driving
I have 08 Optimax 115, when I am driving (at any RPM) and use the power trim the engine loses 200-500 RPM like and electrical short. this is the only time that it occurs, both on trim up and down. Thi… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
i have a 1985 two stroke yamaha 90 hp outboard. having trouble
i have a 1985 two stroke yamaha 90 hp outboard. having trouble with the trim and tilt. while running on the water the two trim tabs will not trim up all the way. they will only trim up partially. on t… read more
Scott Martin
Scott Martin
Service manager
Vocational, Technical or Trade Scho
167 satisfied customers
I recently bought a 1998 action craft with 135 Mariner Optimax.
I recently bought a 1998 action craft with 135 Mariner Optimax. It test drove great and the family loves the boat. Of course, after one week the of minimal use the tilt drive nolonger raises the engin… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a 2004, 26 SeaRay Sundancer with a 350 mag mercruiser
I have a 2004, 26' SeaRay Sundancer with a 350 mag mercruiser with smartcraft guage. Took it in for annual service. Mechanic said small hole in boot from animal and some water inside. Had it replaced.… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have bought a Optimax 225 2001 with only 100h. I thougt that
I have bought a Optimax(NNN) NNN-NNNNwith only 100h. I thougt that I made a grate purchase, but my mechanic has been working with it for 2 months and does not find the problem. The engine doesn't rais… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
I have a 2004 Mercury Optimax 135 HP Very low hrs. Why am I
I have a 2004 Mercury Optimax 135 HP Very low hrs. Why am I having trouble keeping water pumps in this engine. Dealer says it's normal for this model ?… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
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Dominick

Dominick

Marine Mechanic

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John White

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Jason

Jason

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Tan

Tan

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Jeff G.

Jeff G.

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4,729 satisfied customers

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Captain Dave

Captain Dave

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USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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