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I have a 1999 mercury optimax 200 hp, my serial # sticker on
I have a 1999 mercury optimax 200 hp , my serial # sticker on the bracket is completely worn off. I am in need of a complete flywheel assembly. was this a standard part for all 1998-1999 optimax 200 h… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
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1994 Mercury O/ 150 hp EFI Optimax. engine starts fine,
1994 Mercury O/B 150 hp EFI Optimax. engine starts fine, idles fine. put it in gear, advance throttle to approx. 1200-1500 rpm. any more throttle and engine noses over and stalls. Changed HP fuel pump… read more
Jason
Jason
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Vocational, Technical or Trade School
18,955 satisfied customers
I am looking at swapping out one of my outboards with a
Hi I am looking at swapping out one of my outboards with a blown powerhead and have a question about compatability. The boat currently has twin 2001 225 optimax outboards on it. One option I have is t… read more
Charles
Charles
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5,459 satisfied customers
I recently had my Mercury 90 hp optimal serviced due to
I recently had my Mercury 90 hp optimal serviced due to getting 3 beeps and shutting down. $1,175 later, fuel pump, pick ups, impellers, all replaced, I finally had a chance to get it off the trailer … read more
Charles
Charles
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I'm switching from a 1999 200 hp optimax to a 2008 250 pro
I'm switching from a 1999 200 hp optimax to a 2008 250 pro xs. Have the harness adapter installed but need to hook up the warning guage, and the wiring colors are different on the bayonet plugs, any i… read more
Jeff G.
Jeff G.
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Vocational, Technical or Trade Scho
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I have a 2002 model 200 hp saltwater mercury. The motor is
I have a 2002 model 200 hp saltwater mercury. The motor is very clean and has been running excellent. lately, it has become more difficult to start. I had it in the shop and they replaced the plugs ho… read more
Jason
Jason
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Vocational, Technical or Trade School
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Hi, I have a Mercury 200 hp Optimax Sport jet that stalled
Hi, I have a Mercury 200 hp Optimax Sport jet that stalled a couple times this summer and now wont start… read more
Jason
Jason
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Vocational, Technical or Trade School
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I have an 2003 150 hp Optimax. Question: Ive just started
I have an 2003 150 hp Optimax. Question: I've just started have a problem when I run it just above 2400 rpm the motor bogs to point of Stalling! I can get another 1000 rpm if by trimming the motor. No… read more
Charles
Charles
Certified Mercury Tech
5,459 satisfied customers
I have a 2008 Sugar Sand Tango boat with a 200 HP optimax Sport
I have a 2008 Sugar Sand Tango boat with a 200 HP optimax Sport Jet motor. Today with running it at about 3,500 RPM (30 MPH) all of a sudden it bogs down as if to run out of fuel. I filled with gas an… read more
Charles
Charles
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WHAT GRADE OF ENGINE OIL DO I USE FOR A 200 HP OPTIMAX MERC
WHAT GRADE OF ENGINE OIL DO I USE FOR A 200 HP mercury OPTIMAX GAS SERIWL #OT372498 & OT385271 BOTH ON 2001 YEAR BOSTYON WHALER. YOUR HELP S SINCERELY APPRECIATED.… read more
Jeff G.
Jeff G.
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My friend has a 2006 75 hp mercury optimax. It runs well first
My friend has a 2006 75 hp mercury optimax. It runs well first thing in the morning but later in the day will start running poorly. Stalls at idle, bogs down and hard to get boat up on plane. It has n… read more
Jeff G.
Jeff G.
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Mercury Optimax: My 200 hp 2006 mercury optimax revs high on
My 200 hp 2006 mercury optimax revs high on startup beeps sometimes, then idles normal for a few seconds. Then idle becomes varied before running up around 1100 rpms where it hangs. Any ideas? I think… read more
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We are trying to diagnose a stalling problem on a 97/ 90 HP
We are trying to diagnose a stalling problem on a '97/ 90 HP Evinrude. The motor will run great for 20 minutes to 3 hours, but will stall intermitently at any time without the ablity to re start. The … read more
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200 HP Optimax sport Jet, stalled and will not start. about
200 HP Optimax sport Jet, stalled and will not start. about 1 Hour Prior, stalled and was hard to start. Also, a few times the RPM dropped intermittantlyfor a few seconds. this engine only has 40 hour… read more
Jeremy R.
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I HAVE A 21 FT WALKAROUND AND NEED TO BUY A MOTOR, NOW I HAVE
I HAVE A 21 FT WALKAROUND AND NEED TO BUY A MOTOR, NOW I HAVE 2 OPTIONS A 150 MERCURY OPTIMAX 1998 AND A 1994 JOHNSON 200 WHICH MOTOR MY BOAT WILL RUN BETTER THANK YOU… read more
Tan
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I have a 2006 Merc 90 hp optimax. when I first run the boat
I have a 2006 Merc 90 hp optimax. when I first run the boat i will run great for about 5 - 10 minutes at 3500 rpms. Then the engineen start to stall out, if I back down the throttle it will idle fine … read more
Outboard Guy
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I have a 2008 250 hp Mercury Optimax on a Ranger Z22 Comanche.
I have a 2008 250 hp Mercury Optimax on a Ranger Z22 Comanche. It has 56 hours of running time. I live in Albuquerque, NM so I fish most of the time at 6000 ft or greater. I was using a Tempest Plus S… read more
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99 200 optimax seem like a fuel clog willstart run 4 30 sec
99 200 optimax seem like a fuel clog willstart run 4 30 sec then will not start again 4 about 15 min good spark and fuel back to the rail… read more
Joe
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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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