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Just came across this site. Don't know how it works. 2013
Just came across this site. Don't know how it works. … read more
Charles
Charles
Certified Mercury Tech
5,748 satisfied customers
2008 Mercury four stroke 115 EFI. This past year it sat for
2008 Mercury four stroke 115 EFI. This past year it sat for 6 mos before use. When I started using it again. It would idle fine but would not go over 8MPH or 2600 RPM's. (Peak performance 28MPH, 5000 … read more
Charles
Charles
Certified Mercury Tech
5,748 satisfied customers
I have a 2013 sun tracker pontoon with a 90 hp 4- stroke
I have a 2013 sun tracker pontoon with a 90 hp 4- stroke when I get to about 4500 rpms it starts beeping n cuts the power until I go to 4000 rpms n will run fine there all day I've changed both fuel f… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
2008 5o hp mercury: starts fine runs smooth but will not rev
2008 5o hp mercury: starts fine runs smooth but will not rev over 3200 to 3800. was in the shop nov 14 for same problem. they cleaned carbs,( I had already kitted them), replaced plugs,(only 3 hrs on … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I have a 2008 mercury 90 hp 4 stroke efi motor. I have replaced
I have a 2008 mercury 90 hp 4 stroke efi motor. I have replaced the vacuum line in the fuel modulator and fuel line to engine from tank. engine will start up then start cutting out and then die.… read more
Charles
Charles
Certified Mercury Tech
5,748 satisfied customers
I have a 2002 16 ft boston whaler dauntless with a two stroke
I have a 2002 16 ft boston whaler dauntless with a two stroke 115 hp mercury? Would a four stroke 90 hp be heavier on the back and change the boat performance And would it pull skis?… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
i have a 115 mercury four stroke efi 2006 at 3500 rpm it bogs
i have a 115 mercury four stroke efi 2006 at 3500 rpm it bogs out anywhere past that rpm it runs good… read more
Charles
Charles
Certified Mercury Tech
5,748 satisfied customers
I have a 2000 200 hp mercury efi it started to lose rpm when
I have a 2000 200 hp mercury efi it started to lose rpm when i run it up at 4000 rpm . We put a fuel pressure gauge on the fuel pump tank and the pressure drops down and goes right back up .just befor… read more
Charles
Charles
Certified Mercury Tech
5,748 satisfied customers
I have a 1996 115 hp mercury 4 cylinder 2 stroke. Runs fine
I have a 1996 115 hp mercury 4 cylinder 2 stroke. Runs fine but.... when I run it at over 3000 rpms for more than a minute a alarm goes off steady, When I slow back down to an idle the alarm goes off … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
2003 Mercury 115 HP EFI Four-stroke, Saltwater, serial number
2003 Mercury 115 HP EFI Four-stroke, Saltwater, serial number # XXXXX Ran fine until I pulled another boat, now it will not run above 4000 rpm under load (in gear). Seems guardian mode kicked in and i… read more
Charles
Charles
Certified Mercury Tech
5,748 satisfied customers
2009 Mercury 4 stroke 115. Performance deteriorated over past
2009 Mercury 4 stroke 115. Performance deteriorated over past month. Use to run 26 MPH to 28 MPH at full throttle 5000 RPMs now tops out at 14 MPH at 3200 RPMs. It idles normally. Oil filter, oil chan… read more
orcamarine
orcamarine
Proprietor
Vocational, Technical or Trade Scho
7 satisfied customers
Im looking at buying a new tracker 165 boat weight is app.
I'm looking at buying a new tracker 165 boat weight is app. 845 lbs. I want to purchase w 20 EL four stroke mercury. The dealer has to order the 20 EL but has boat in stock w 40 four stroke. He told m… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I have a 90 Mercury 2 stroke motor, the rpm alarm keeps sounding
I have a 90 Mercury 2 stroke motor, the rpm alarm keeps sounding off when I reach 4000 rpm and the engine starts to sputter and shut down. Anything below 4000 rpms is fine.… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
Quicksilver 640 weekend with mercury EFI 115 4 stroke I
Quicksilver 640 weekend with mercury EFI 115 4 stroke I have a quicksilver weekend 640 with mercury 115 EFI 4 stroke out 2008 i am having a problems with performance , it was going at around 27 noths … read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
Hi, I have just fitted two 115 4 stroke Mercs(2010) to a 7.2mtr
Hi, I have just fitted two 115 4 stroke Merc's(2010) to a 7.2mtr Fibre Glass boat. The boat originally was fitted with twin 100 yamaha four strokes. I spend most my time trolling at around 6 - 10 knot… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
Hi, I have a 2004 Mercury 115hp 4-stroke EFI outboard, when
Hi, I have a 2004 Mercury 115hp 4-stroke EFI outboard, when i rev the engine on neutral sounds fine and will rev up till rev limiter, but in gear or under load, it will start bogging past 3500 rpm and… read more
TOM
TOM
Vocational, Technical or Trade Scho
196 satisfied customers
2006 Mercury 115 hp outboard motor, runs good for a while then
2006 Mercury 115 hp outboard motor, runs good for a while then starts sputtering, losing power then sometimes cuts off while cruising. Seems to get worse the faster you run it. Took it in for service … read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
I have a Mercury 2007 75 HP 4 stroke EFI. I understand the
I have a Mercury 2007 75 HP 4 stroke EFI. I understand the bore and stroke is the same for the 90 and 115 HP. Is it possible to increase my HP rating.… read more
Larry B.
Larry B.
Marine Service Tech
High School or GED
574 satisfied customers
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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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