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I was wondering if you could answer question for me about
hey I was wondering if you could answer question for me about volvopenta aqad 41a tachometer … read more
Jason
Jason
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Vocational, Technical or Trade Scho
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I tried the separate gas tank NO CHANGE, I checked the 2
Jason, I tried the separate gas tank NO CHANGE, I checked the 2 fuel pumps (low & high pressure and both are working. ran it at a low idle for about 10 minutes at low RPMS when I increased the throttl… read more
Charles
Charles
Certified Mercury Tech
5,077 satisfied customers
I own a 2003 225 Mercury Optimax. Approximately a year ago,
I own a 2003 225 Mercury Optimax. Approximately a year ago, I went fishing. The engine initially ran fine, 5600 rpm, as usual. After a 2 hour stop, I started the motor. It sounded like it was missing.… read more
Charles
Charles
Certified Mercury Tech
5,077 satisfied customers
I have a 1999 Optimax 135 sat years with gas in it.
I have a 1999 Optimax 135 sat for two years with gas in it. Had the shop go through engine. Replaced plugs, ECM, some injectors as well. They replaced high pressure water pump. They did not replace wa… read more
Charles
Charles
Certified Mercury Tech
5,077 satisfied customers
G'day Jeff, I have a similar problem, Tach stopped working
G'day Jeff, I have a similar problem, Tach stopped working and I'm trying to diagnose if it's the Tacho or regulator thats at fault. I've done a few checks, with the engine running it's charging just … read more
Jeff G.
Jeff G.
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Vocational, Technical or Trade Scho
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1989 5.0LX mercruiser Thunderbolt 4bbl vacuum steady at 12
1989 5.0LX mercruiser Thunderbolt 4bbl vacuum steady at 12 psi idle 750-850 kind of surges. Timing indicates 8' BTC seems to smooth out at 950 rpm. Also will not run at less then 700 rpm will stall. d… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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I have a Volvo Penta D1-30 in a Beneteau Oceanis 361. Today
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Jason
Jason
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I have a Cape Cory 28 with a MD7a diesel engine. Recently
I have a Cape Cory 28 with a MD7a diesel engine. Recently after starting a some warm up the engine does not increase in RPM as the trottle is increased. So the sailboat moves along at about 1000 RPMs … read more
Jeremy R.
Jeremy R.
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Since you did me well last time here we go again. 1999 Mercury
Since you did me well last time here we go again. 1999 Mercury 15 hp 2 stroke electric. History, sat in barn for ten years with gas in carb. Almost no running time on this motor. Have used spray carb … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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1998 Bayliner 5.7L alpha one I/O Engine recent rebuild, runs
1998 Bayliner 5.7L alpha one I/O Engine recent rebuild, runs good at idle and above about 1000 RPM. Slow or normal throttle move from idle, engine runs very rough about 900 RPM it either stalls or wit… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 1998 225 Optimax. Today, I was changing starting
I have a 1998 225 Optimax. Today, I was changing starting batterys out. I inadvertantly hooked up one of the smaller negitive connections to the positive terminal although the main battery cables were… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a 2002 150hp Mercury Optimax which starts fine. When
I have a 2002 150hp Mercury Optimax which starts fine. When at idle or in gear, as I advance the throttle and the engine shuts off. There is no warning horn. I restart, slowly advance the throttle, th… read more
Jeff G.
Jeff G.
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We have a 2007 40HP Mercruiser EFI outboard on a 19.6 deck
We have a 2007 40HP Mercruiser EFI outboard on a 19.6 deck boat that is down on power. We were out cruising and all of a sudden it was as if we had accelerated however it did it on its own. The RPMs k… read more
Jason Forsberg
Jason Forsberg
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Vocational, Technical or Trade Scho
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I have a dingy with a Mercury 9.9 outboard (About 4 years old
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Noel Schembri
Noel Schembri
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Diploma
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One of my 327 GM marine engines in my 1970 Chris Craft Constellation
One of my 327 GM marine engines in my 1970 Chris Craft Constellation is using almost double the amount of fuel than the other engine. I noticed last weekend what appears to be a white/grey atomized tr… read more
Captain Dave
Captain Dave
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Master's Degree
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I have owned a Bavaria 38 fitted with the above engine for
I have owned a Bavaria 38 fitted with the above engine for 6 years from new. The engine has 586 hours and I have changed the engine oil and filter annually. I have always run the engine at 1500 rpm an… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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volvo penta 2003 - BT868219 good ols engine - but now the
volvo penta 2003 - BT868219 good ols engine - but now the tacho is intermittent. If its not indicating the alarm sounds continously before start. on start runs normally but tacho says zero. sometimes … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
My Mercury Optimax 150 slowly heats up and eventually overheats
My Mercury Optimax 150 slowly heats up and eventually overheats even while running at 1000 to 2000 rpm, but only when in gear. When I go back to neutral, the temperature will drop 30 degrees F in less… read more
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Mechman45
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Meet the Experts:

Dominick

Dominick

Marine Mechanic

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Ted G.

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Jason

Jason

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Tan

Tan

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Jeff G.

Jeff G.

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Captain Dave

Captain Dave

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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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