Mercury 25 hp 4 stroke troubleshooting

Jul 18, 2011 · Help! Last year I started heving problems with power on A 2005 25 hp Mercury. It had been running fine and then suddenly it wouldn't put my 15" Sylvan into a plane. I took it into the people I bought it from and they couldn't find anything wrong with it and said that it hits 5,000 rpms with no problems. Took it out and had the same issue. May 18, 2015 · Generally, fuel related problems will cause the above, but they won’t stop an engine dead. If it’s really going dead, I would strongly suspect an electrical problem. And before someone tells you to replace the CD ignition module, DON’T! You want to be absolutely sure before you start throwing away money. This troubleshooting guide will help you determine why your 9.9HP Mercury boat motor won’t start. Keep in mind that some 9.9 HP owners will consider a non-starting issue to include the following: Problem: Starts Hard When Cold Jul 26, 2012 · The Merc 25hp 4-stroke doesn't have much get up and go, neither does any other 4-stroke in that hp range. I would try a 25hp E-Tec as I've read those are beasts compared to the others in that hp range and that was coming from a Mercury purist. I'm looking for a manual for a 4 HP 2-stroke Mercury outboard from 1981. It's Belgian made, two cylinder, serial # 9321742, although Mercury advised that I'd need to put a zero before the serial number (so, 09321742). Flash forward nearly 11 months since the last post in this thread. I have a 2005 150 Sport purchased new in 2005 with the Mercury 60 HP four stroke EFI Bigfoot standard concern power at the time. Have just under 200 hrs on the motor, used year-round primarily in fresh water in FL and, now, NC. Apr 01, 2009 · I have a new 25hp Mercury EFI 4-stroke. Mercury also has a 30hp motor with the exact same specs except for the power rating. What is the difference, and is it something simple that I can do to get the extra 5 HP. I have a 2004 Mercury 40-HP FOURSTROKE motor on my 130 Sport. At first, it would idle fine, but when I revved up to get on plane, the motor would sputter and choke. Eventually the overheating alarm would go off. Now the motor won't start at all. It seems like it isn't getting fuel. Jan 24, 2007 · All models of the Merc 25/30 FourStroke will come equipped with the manual starter, so if the battery goes dead, it's possible to start an electric-start model with the rope and motor home, even if the battery is disabled for some reason. Jun 29, 2011 · MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone. ... 25 hp mercury 4 stroke Aug 22, 2018 · I have the same problem with my 2014 Merc 25. First summer it was the shift linkage, last summer fuel injection problems, and now the engine goes into Problem with a 3 yr old Mercury 25hp EFI 4 Stroke - Page 2 - Chicago Illinois Fishing Forum, Information & Reports This carburetor fits the Mercury 25HP 4-Stroke Outboard Engines with electric choke. They are compatible with outboards that have serial numbers between 0G590000 and 0T408999. Depending on your specific model year and type, you may have to reuse the throttle linkage from your old carburetor. We include instructions on how to do this, as well as the tool used to more easily reconnect the ... 2004 Mercury 25 HP 2 stroke only runs on one cylinder Not rated yet My 2004 Mercury 25 HP engine only runs only on one cylinder. The bottom cylinder works fine and the engine will run with only the bottom firing. If I … I'm looking for a manual for a 4 HP 2-stroke Mercury outboard from 1981. It's Belgian made, two cylinder, serial # 9321742, although Mercury advised that I'd need to put a zero before the serial number (so, 09321742). Output far beyond its size Put amazing power in the palm of your hand. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. Enjoy quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best. Mercury 60 4-Stroke Manuals & User Guides. User Manuals, Guides and Specifications for your Mercury 60 4-Stroke Outboard Motor. Database contains 2 Mercury 60 4-Stroke Manuals (available for free online viewing or downloading in PDF): Manual , Operation and maintenance manual . Jul 06, 2012 · I have a 25hp mercury 4 stroke. I'm having problems setting the idle. The thing was running great all weekend then died, the plugs were fouled. I replaced the plugs with that the manual says, I can get the ending to run, but it is idling way too high to put into gear. Mercury/Mariner 25 HP Bigfoot/Command Thrust - 60 HP Outboards. 25 HP Bigfoot/Command Thrust (CT) (4-Stroke) 30 HP 2-Stroke; 30 HP BigFoot/Command Thrust (CT) 2010 & Newer View and Download Mercury 25 4-Stroke user manual online. 25 4-Stroke. 25 4-Stroke outboard motor pdf manual download. May 03, 2018 · Re: 2006 25hp 4 stroke will crank, won't run Sounds to me like some sort of break in your wiring system, Get an AVO meter and check continuity between your ignition and the fuel pump, check if there is a fuse in line. Mercury Mariner 50 HP 4-Stroke Outboard 01-06 Service Manual; Mercury Mariner 150 175 200 HP EFI 4 stroke 2002-2007 Manual; Mercury Mariner 25 BigFoot 4 Stroke 1998-2008 Service Manual; Mercury Mariner 240 HP EFI Jet Drive 01-08 Service Manual; Mercury Mariner 50 HP 4 Stroke Outboard 01-06 Service Manual Output far beyond its size Put amazing power in the palm of your hand. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. Enjoy quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best. I've got a 3 yr old Mercury 25hp EFI 4-Stroke. Every time I take it out since last fall it does the same thing. When I get under way at full throttle, within almost exactly one minute the motor's warning light/alarm (solid tone) comes on and the motor goes into an idle mode. Ok, first thought is that it's over-heating, or it's not warmed up. It ... 25 & 30 HP 4-Stroke 2004-2007. 40-75 HP 13 Tooth 3 3/8" Gear Case. ... 115 Hp EFI 4 Stroke Mercury 2013. 15 Hp Mercury 2 Cyl. 175 hp Black Max. 25 HP XD 77-94. 40 HP ... No fire on the 1,3,5 or 2,4,6: Swap red and red/white wires, also blue with blue/white wires. If the problem moves to the other set of cylinders, the Stator is at fault. Disconnect rectifier and retest. If the engine fires normally, replace the rectifier. 25 & 30 HP 4-Stroke 2004-2007. 40-75 HP 13 Tooth 3 3/8" Gear Case. ... 115 Hp EFI 4 Stroke Mercury 2013. 15 Hp Mercury 2 Cyl. 175 hp Black Max. 25 HP XD 77-94. 40 HP ... Flash forward nearly 11 months since the last post in this thread. I have a 2005 150 Sport purchased new in 2005 with the Mercury 60 HP four stroke EFI Bigfoot standard concern power at the time. Have just under 200 hrs on the motor, used year-round primarily in fresh water in FL and, now, NC. Battery-free Electronic Fuel Injection (EFI) on the Mercury 25 FourStroke delivers consistently easy starting, crisp throttle response, increased fuel economy and outstanding overall performance. Mercury 15 and 20hp FourStroke outboards come standard with a three-position choke , eliminating the need for a primer button. Sep 27, 2020 · If it was me, I'd run away from Mercury. The new Mercury 150L I just bought on 8/11/20 is a lemon and doesn't run right. In fact, it failed on the very first trip (motor has less than .4 hours). Boat Engine 3323-835382T04 3323-835382A1 835382T1 835382T3 Carburetor Assy for Mercury Mariner 4-Stroke 9.9HP 13.5HP 15HP Outboard Motor 4.4 out of 5 stars 19 $94.88 $ 94 . 88 2001-2002 Manual Covers: Mercury 115 HP, Mercury 115 HP (115HP) EFI (Electronic Fuel Injection) outboard engine. 4 Cylinder InLine, 4 Stroke DOHC, 16 Valves. Starting Serial Number 0T178500. Starting Serial Number 0T178500. Apr 12, 2009 · I have a : Mercury 50 hp big foot outboard June 2007 50elpt 4s EFI 4 stroke Engine family 7m9xm.9952ge Serial # 1c053937 Runs very rough. I changed the coil that had no spark but it still runs rough. … Jan 24, 2007 · All models of the Merc 25/30 FourStroke will come equipped with the manual starter, so if the battery goes dead, it's possible to start an electric-start model with the rope and motor home, even if the battery is disabled for some reason. Battery-free Electronic Fuel Injection (EFI) on the Mercury 25 FourStroke delivers consistently easy starting, crisp throttle response, increased fuel economy and outstanding overall performance. Mercury 15 and 20hp FourStroke outboards come standard with a three-position choke , eliminating the need for a primer button. Air vent in fuel cap not open. Faulty emergency kill switch. Some engines -- not the pull-start kind -- have a battery that starts it. If your engine has a battery, make sure it is charged up before use; verify the battery connections are clean -- as corroded connections can keep a Mercury outboard from starting. Jul 05, 2013 · 150 HP (2013) Mercury Fourstroke with 15x15P SS Enertia (Thanks Todd!) - 41 MPH at 5800 RPM, light load. 39 MPH at 5700 RPM, heavy load. Love this motor. 115 HP (2012) Mercury 4 Stroke with Black Max 13-3/4 x 15P. - 35 MPH at 6400 RPM with light load, but ~15 mph in turns when tubing with a loaded boat. Jan 30, 2018 · The new Mercury FourStroke 15 HP and 20 HP outboards offer an adjustable tiller handle designed to enhance comfort and control for small-boat owners. The tiller is one of those “why did it take so long” innovations that seems like an obvious idea now, but required tossing overboard decades of traditional design inertia. Output far beyond its size Put amazing power in the palm of your hand. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. Enjoy quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best. Apr 01, 2009 · I have a new 25hp Mercury EFI 4-stroke. Mercury also has a 30hp motor with the exact same specs except for the power rating. What is the difference, and is it something simple that I can do to get the extra 5 HP. I've got a 3 yr old Mercury 25hp EFI 4-Stroke. Every time I take it out since last fall it does the same thing. When I get under way at full throttle, within almost exactly one minute the motor's warning light/alarm (solid tone) comes on and the motor goes into an idle mode. Ok, first thought is that it's over-heating, or it's not warmed up. It ... Boat Engine 3323-835382T04 3323-835382A1 835382T1 835382T3 Carburetor Assy for Mercury Mariner 4-Stroke 9.9HP 13.5HP 15HP Outboard Motor 4.4 out of 5 stars 19 $94.88 $ 94 . 88 Mar 29, 2010 · I have a 25 HP Mercury outboard and I think it is a ’93 or ’94 but not too sure. Anyway, had it out yesterday and noticed that my pea stream was not very steady at idle. Everything seemed fine with the motor in gear – nice flow but when I would put it in neutral it sometimes slowed to a trickle. Sep 27, 2020 · If it was me, I'd run away from Mercury. The new Mercury 150L I just bought on 8/11/20 is a lemon and doesn't run right. In fact, it failed on the very first trip (motor has less than .4 hours). Troubleshoot the ignition by using a spark detector. Auto supply stores sell these detectors. They do not need to be made specifically to detect the spark in a 25 HP Mercury boat motor. A generic spark detector will do. Set the gap on the detector to 3/8 of an inch. Crank the motor to see if there is a spark. 2001-2002 Manual Covers: Mercury 115 HP, Mercury 115 HP (115HP) EFI (Electronic Fuel Injection) outboard engine. 4 Cylinder InLine, 4 Stroke DOHC, 16 Valves. Starting Serial Number 0T178500. Starting Serial Number 0T178500. Sep 27, 2020 · If it was me, I'd run away from Mercury. The new Mercury 150L I just bought on 8/11/20 is a lemon and doesn't run right. In fact, it failed on the very first trip (motor has less than .4 hours). 25-30 Horsepower - Mercury 4-Stroke ; 25-70 Horsepower ; Models 402-500(1974-76), 650, 60 HP ; 40-140 Horsepower ; 135-300 Horsepower ; Nissan, Tohatsu . 8-9.8 Horsepower 4-Stroke ; 9.9-20 Horsepower ; 25-30 Horsepower 4-Stroke ; 35-50 Horsepower ; 50-70 Horsepower ; 60-140 Horsepower ; Suzuki . 8-15 Horsepower ; 25-30 Horsepower ; 35-65 ... View and Download Mercury 25 EFI FourStroke user manual online. 25 EFI FourStroke outboard motor pdf manual download. Also for: 30 efi fourstroke, 25 fourstroke. Mercury 25hp EFi Jet 3 Cylinder 4 Stroke Outboard 2007-2011 Service Repair Workshop Manual Download Pdf Download Now; Mercury 15hp 20hp 25hp 2 Cylinder 4 Stroke Outboard 2005-2011 Service Repair Workshop Manual Download Pdf Download Now; Mercury 25hp EFi 3 Cylinder 4 Stroke Outboard 2006-2011 Service Repair Workshop Manual Download Pdf Download Now