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2007 150 optimax problem

Posted: Tue Feb 10, 2015 3:30 pm
by bassaholic72
I'm getting a constant warning horn and the rpms won't go above 3000. I have good water pressure. I'm getting oil up to the small reservoir on the motor. Dose anyone know what could be causing this problem?

Thanks, Troy

Re: 2007 150 optimax problem

Posted: Fri Mar 27, 2015 4:33 am
by tmulliken
I had the same problem on an 2002 225 opti. turns out the float in the oil bag on the motor can become "waterlogged", or unable to float. this tells the sending unit the reservoir is empty, although it is full. I replaced the reservoir, problem solved.

Tom Mulliken

Re: 2007 150 optimax problem

Posted: Fri Mar 27, 2015 7:21 am
by drew
I would post this on bass boat central in the mercury forum. Don Weed should be able to help you. You need to include your serial number in the first post. Good Luck.

Re: 2007 150 optimax problem

Posted: Fri Mar 27, 2015 8:15 am
by TonyM
A friend of mine has been trying to get a similar problem with his Opti figured out for quite a while. Please update if you determine the cause.

Re: 2007 150 optimax problem

Posted: Sat Mar 28, 2015 6:49 am
by mark poulson
Have a factory authorized Merc. mechanic check it out.
Motors are too expensive to misdiagnose and blow up.

Re: 2007 150 optimax problem

Posted: Sat Mar 28, 2015 11:19 am
by blkdog812
motor needs to be hooked up to the computer to show you what fault is occurring. contact your local merc guy