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When throttling up the engine starts bogging down and will
when throttling up the engine starts bogging down and will finally go back to idle … read more
Charles
Charles
Certified Mercury Tech
5,161 satisfied customers
I have 1999 optimax 135. in a week of use this summer went
I have 1999 optimax 135. in a week of use this summer went from fine idle to rough idle and rough running at low rpms. WOT is fine. has gotten worse every day. Fresh gas to start with.… read more
Charles
Charles
Certified Mercury Tech
5,161 satisfied customers
Motor cranks up fine. gets on plane and cruises for about
motor cranks up fine. gets on plane and cruises for about 10-15 seconds and then goes into safe mode. i can turn the key of and crank it right back up. it will plane out and in 10 seconds, go back int… read more
Charles
Charles
Certified Mercury Tech
5,161 satisfied customers
I have a 2013 Mercury OptiMax 2 stroke. It has new high
I have a 2013 Mercury OptiMax 2 stroke. It has new high pressure and low pressure fuel pumps, new thermostat and new spark plugs. Runs great however. After running it for about 40 min. If I turn it off and try to start it again it won't start right away. I would have to wait for about 10 minutes before it starts again. I noticed it burns out a lot of oil while trying to start. Eventually it starts and runs great again. I can replicate the problem. … read more
Jason
Jason
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Vocational, Technical or Trade Scho
18,818 satisfied customers
If you start a Mercury 225HP outboard with the canvas engine
If you start a Mercury 225HP outboard with the canvas engine cover on and then have issues with the engine running at idle what could be the cause?… read more
Charles
Charles
Certified Mercury Tech
5,161 satisfied customers
Mercury Optimax with my trusted mechanic month He is
Mercury Optimax with my trusted mechanic for a month He is stumped. Boat worked perfectly in spring. Then kids took it out, neglected to use primer bulb and got a few hundred yards from dock and could… read more
Charles
Charles
Certified Mercury Tech
5,161 satisfied customers
I have a 150 OptiMax 2008 engine that has started the alarm
I have a 150 OptiMax 2008 engine that has started the alarm siren when I am pulling people on an inner tube; usually when I am in a turn so there is maximum stress. I had to replace 2 coil assembly un… read more
Charles
Charles
Certified Mercury Tech
5,161 satisfied customers
I have a 2005 225hp optimax, I have replaced the needle valve
I have a 2005 225hp optimax, I have replaced the needle valve in the vapor separator and water pump this year. The boat was not run last year. The problem is after about 10 mins of running at 3000 to … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,818 satisfied customers
I have a 2011 Mercury Optimax on my bowrider. Was running great.
I have a 2011 Mercury Optimax on my bowrider. Was running great. Boat was out of the water for nearly 6 months. went back in 3 days ago and ran fine. Today topped it up with fuel and it would not acce… read more
Charles
Charles
Certified Mercury Tech
5,161 satisfied customers
Mercury optimax 90hp starts, but runs rough at idle speed and
Mercury optimax 90hp starts, but runs rough at idle speed and sometimes stalls. Will run at higher RPMs and speed. Changed the fuel filter and fuel. Primer Bulb is not "Hard" after priming, and will l… read more
Charles
Charles
Certified Mercury Tech
5,161 satisfied customers
mercury 90HP 2012 less than 4 hrs. run time. buzzer alerts
mercury 90HP 2012 less than 4 hrs. run time. buzzer alerts 4 beeps every 5 minutes. all fuel and filters and marine gas treatment are new. what could be the problem? thanks, XXXXX XXXXX… read more
Charles
Charles
Certified Mercury Tech
5,161 satisfied customers
My 2006 Mercury Optimax 90hp recently started an occasional
My 2006 Mercury Optimax 90hp recently started an occasional three beeps while out on river at least two miles from home. Water ejection seemed fine, oil tank was full and motor seemed to be running fi… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,818 satisfied customers
I have a 2003 mercury optimax. Had a problem few years ago
I have a 2003 mercury optimax. Had a problem few years ago engine would not throttle up past 3000 rpm. Mechanic finally said high pressure fuel pump had corroded. Not covered under warranty. Boat sits… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,818 satisfied customers
I have a 90hp Optimax outboard, 2008 model with 84 hours.
I have a 90hp Optimax outboard, 2008 model with 84 hours. It has been regularly serviced and always used the factory recommended oils. After a recent service, the engine immediately ran rough at idle … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,818 satisfied customers
2008 60 hp four stroke . Starts good, good water pump pressure,idles
2008 60 hp four stroke . Starts good, good water pump pressure,idles rough. 3000 rpm max. No beeps on ignition switch. Nothing fouled on prop. Oil level OK… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Hi - I have a 2008 Mercury Optimax 90HP 2 stroke. When I have
Hi - I have a 2008 Mercury Optimax 90HP 2 stroke. When I have been at low rpm then slowly accelerate an alarm sounds and the smartcraft guage tells me there is a fault..but all readings are good. If I… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,818 satisfied customers
Have a 2004 Mercury 200 Optimax with a low emissions sticker
Have a 2004 Mercury 200 Optimax with a low emissions sticker on it. When I start it up it gives 4 beeps and will intermitantly give 4 beeps at idle.… read more
Scott Martin
Scott Martin
Service manager
Vocational, Technical or Trade Scho
167 satisfied customers
I have a 2004 Mercury 115HP EFI. I received the boat from a
I have a 2004 Mercury 115HP EFI. I received the boat from a friend and it had been out of water for a few years. I checked the oil very clean and started the engine for the very first time. It gave me… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
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