Mercury 75hp 4 stroke problems 75 outboard motor pdf manual download. May 23, 2020 · I wasn't aware Merc built a carbureted 4 stroke in 2000. HELP! I had the same problem with my Merc. The 4 strokes are also having a lot of problems with the float in the fuel supply module. I have a 2001 50hp 2 stroke and experiencing the same thing. Here are 3 of the main and common causes of a bad coil on a Mercury outboard: Corrosion; Improper maintenance Oct 30, 2012 · Re: Mercury 75hp misfiring? Continued operation at large throttle opening can cause engine damage if your current problem is a fuel supply problem. Turned out there is something wrong with the fuel injection/ECM. Fight corrosion on battery terminals with terminal cleaner. o. Jan 31, 2020 · Thanks Steps but 75hp four stroke mERC will only rev to 5500 -5600 - that is what it is designed to do. Use fuel additives whenever possible, and stabilizer when needed, to reduce carbon build-up and fight the problems created by ethanol. Parts Lookup The service manual for your engine is P/N: 90-897725 Excellent deal here: Used Mercury Outboards 75 90 Fourstroke EFI Factory Service Manual 90 897725 | eBay Gerry Aug 23, 2017 · My 2 stroke Mercury (75 HP) sounds an alarm (most probably high temperature) when cruising in medium RPM (speed 10-12 knots) and especially when there are medium waves. Sprayed the air filter with K&N. Jan 29, 2010 · *Spend the little extra now and save big in the long run, 2strokes are no longer the way to go. No problems and he loves it. i also have problems getting it to run from cold starts. The charger output is not generous. Mar 24, 2016 · 2016 Mercury 115 four stroke problem The motor is basically brand new. Thanks, Jim Jul 30, 2011 · Last year I repowered a Boston Whaler with a 90HP Mercury 4 Stroke 2010 engine. Used it 2 and half years and about 200 h before selling boat. 0 liter 4 stroke 4 cylinder. I removed the carbs and they are clean. You'll need a 13mm socket and some Lock Nov 19, 2023 · This guide on mercury 75hp 4-stroke problems will help you understand the engine’s electrical and mechanical systems, identify potential issues, and take the necessary steps to get it running again. Late last year when I was running at cruising for a while throttled back for a no wake zone it died. If you’re new to fishing and need a solid motor for your boat, starting with the Mercury portfolio is a good idea. 5 mph with a 530 lb. P. Turned out that it was an electricla problem. When I try to throttle back up, it's Oct 8, 2013 · Re: in throttle handle gear shift problem: Mercury 9. Even though the powerhead comes from the Orient, Mercury has used their own fuel induction on other engines in this series. I have not winterized as I have a lift and have been able to drop the boat and run the engine occasionally through the winter. Basically the same as the 90 HP version. Motor sat a few months over last year after back and hip surgeries. Jun 25, 2008 · The usual complaint is the carburetors are fouled and need cleaning. Jun 2, 2023 · From identifying common problems to providing detailed, step-by-step guides for fixing them, we’ll ensure that you’re well-equipped with the knowledge you need to maintain your Mercury 4-stroke outboard engine in top condition. After reading lots and lots of posts, I decided to tear the damn thing down and do some looking. Sometimes a fix makes a minor problem a bigger problem. Now my “almost new” 90 hours 2018 Mercury 115 hp 4 stroke is scaring me. Also checked the spark, firing on all 4 cyl's. It runs like a Yamaha and Apr 17, 2022 · The engine had been running fine and a couple weeks later problems. From reading the many threads here about this phenomenon, I've discovered there are three ways this breaks: Jun 25, 2008 · The usual complaint is the carburetors are fouled and need cleaning. Some of the agents even suggested that the engine should miss like this and that; "that is May 26, 2003 · Re: Merc 4 Stroke - Gas in Crankcase I have a number of 2001/2002 Mercury 75/90/115 4 strokes. Re: Mercury 3. So it would not be beyond belief that the carburetors on the Mercury 90-HP four-stroke are from Mercury. This file doesn't do anything, but loads * wp-blog-header. I brought it home and changed the engine oil, gear oil, spark plug and I took Sep 23, 2019 · We bought a 20' Bennington SLX Tritoon with a Mercury 115 HP Four Stroke motor new in 2017. It would start fine at the launch but sometimes seemed like there was an ignition coil problem at idle speed while under power. May 7, 2017 · It takes a bit of time but once the two models are known, the Mercury parts catalogs for each can be inspected so as to determine the precise differences between the two models. It ran great all season. It had been replaced along with the float 6 Aug 5, 2014 · I just bought an 07 Legend Xterminator with a 75 merc 4 stroke on it and the main problem the guy had was the battery wouldn't hold a charge. This situation is not happening when cruising very slow (6-8 Knots) or fast. 2023 Mercury SeaPro 75 hp . load in it. It’s my first outboard and I wanted to buy it new for the reliability, being a first time user. I still get the six beeps when I go over 4500 rpms. Jan 30, 2013 · Re: 2008 Mercury 20hp 4 stroke problems Great thanks. This is my solution. It had 266 hours and looks like new. Jun 14, 2018 · The motor is a 2014 Mercury 90 HP 4 stroke with 42 Hours. After about 15 hours of use this summer, the engine began Jun 9, 2021 · REPLACEMENT PART NUMBER: 68V-24410-00-00, 6D8-24410-00-00, 880890T1, and 880980A02 FIT FOR:-4-stroke fit for Mercury Mariner 75hp, 90hp, 115hp-4-stroke fit for Yamaha 75hp, 90hp-2000 Four-Stroke Outboards-F75, F80, F90, F100, F115, and LF115 HP Engines. It has started to run very rough. Bill Reynolds. Now I am told that it Feb 5, 2007 · Re: 90 HP 4 Stroke - intermittent start problems i have a 2000 mercury outboard, efi, 200hp. I want an engine manufacturer that has dealer support in my area, which limits me to Mercury and Yamaha. The major problem I was having was that after running engine Dec 18, 2009 · Re: Too much engine Oil in 2003 Mercury 90 HP 4-stroke I was reading a very interesting thread a couple of weeks ago about how 4 strokes can have a problem termed "making oil", resulting in an unforeseen rise in the oil level. i found a few spots in the wiring coming found the ignition switch that had the insulation cracked but wires seemed to be ok. The last couple of times I ran it the motor would lose power at just below WOT, like it was running low of fuel. no spark. May 24, 2022 · Mercury 3L/4 Stroke/Verado Moderator Join Date Apr 2008 Location Greenville, SC (US) Posts 95,679 Mar 28, 2023 · Mercury Marine has introduced its outboard motors lineup named Verado, which contains all-new 250, 300 & 350 HP outboards for the ultimate boating experience. having the same exact problem with my 2013 90 hp efi May 25, 2017 · 1986 75hp mercury 4 cylinder ignition problems. lower HP engines sharing platforms with the higher HP models (75 and 115, 4. Everyone has a different interpretation of water contaminated oil. The motor can be running low on fuel in the upper carb, leaning out the fuel mixture causing a lack of power and raising combustion temp high enough to melt the piston. Nov 19, 2011 · There may not be a water problem. There is a fine independent marine mechanic shop out of Greenville South Carolina that closely monitors the website. Feb 7, 2008 · Hi all, I need some help with a mates Mercury 75hp 2 stroke problem he's having. The motor will hesitate for a brief second at full throttle and give a quick 1 beep alarm, like the startup beep. He has recently had it serviced which came back with no problems. Problem #1: Stiff Shifting. Now this year, cold, it fires right up Engine Type: Mercury 75ELPT Inline 4 Four Stroke; Horsepower: 75hp; Cylinders: 4 cyl; Shaft Length: 20" Long; Steering: Remote Mechanical; Starting: Smart Start Electric; Weight: 360 lbs; Maximum Trim Range: 22° (-6° to 16°) Maximum Tilt Range: 70° (-6° to 64°) Alternator: 35 amp / 441 watt with Water-Cooled Voltage Regulator Customer: Hi I have a 2004 75 hp 4 stroke mercury motor, my problem is it will start and run for about 1min then it stalls and won't start again unless I let it set for 10min or so, can you help? Answered by Jason in 7 mins 13 years ago Jan 27, 2022 · I'm considering repowering my boat with a new 150hp. Thread starter Nvfisher; Start date Oct 29, 2018; N. Bought 6 hp 4 stroke in 2006 went to put it in this year and had the problems you all are discussing here Graham . Regular use of a fuel additive such as Mercury QuicKleen has been reported to be effective. This motor is on a heavy 14 FT fishing boat, with floor, live well, power tilt, elect stare and etc. Won't cost much, not a lot of time to do it and may solve your problem. In some cases, the engine may crank slowly but still fails to start over. In the case of a mercury 60 hp 4 stroke engine not charging the battery, the reasons can be similar to the ones mentioned above. Jan 21, 2017 · 2002-2005 Mercury 40 hp 4-Stroke 2002-2005 Mercury 50 hp Four-Stroke 2002-2005 Mercury 60 hp 4-Stroke 2002-2005 Mercury 40/50/60 ELPT 4-Stroke 2002-2005 Mercury 40/50/60 ELPT Bigfoot 4-Stroke Mercury 6 HP Mercury 8 HP Mercury 8 HP Sailmate Mercury 9. All. the valve shim appears to have gotten of place and nicked the side where it sits, is Mar 30, 2013 · Re: Mercury 2. Both plugs were very wet with fuel ,and the engine seemed to be flooding . This was a significant milestone for the company, as it allowed them to compete with other manufacturers who had already been producing 4-stroke motors for several years. A newly discovered issue in my stator. Is any one else experiencing these problems? Aug 6, 2003 · " I have a 75 merc 4 stroke 20 " I have a 75 merc 4 stroke 2001. This is how I fixed the problem. 5 hp 4 stroke problems Took the carb off again, rebuilt (blew out all ports , inspected the needle valve, then after that used carb cleaner all ports , made sure all holes were clear of debri) no results!! Dec 30, 2011 · I had the same problem with my 5 hp. Feb 17, 2011 · hey all, i just bought a 2007 mercury 60hp 4 stroke efi. It's no secret that [Mercury FOURSTROKE 70 to 90-HP outboard engines] have a reputation for their tiny little CARB Three-Star EPA-friendly [carburetor] jets clogging easily. Before you go diddling with jets, maybe doing a "DeCarb" might help. I've had a couple outings trolling with the main outboard where my battery will drain down completely. When it finally does start it runs perfectly. 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. Fuel Type. I think your 4 stroke has the carb with the fuel passage in the corner of the float bowl. I recently couldnt get it to start after it setup for approx i month. . Visual Inspection: Oct 24, 2009 · Re: 2005 115 Mercury 4 stroke power loss. We have a 2018 Tracker Bass Buggy DLX18 with a 75 HP Mercury 4 stroke outboard motor. The new 75, 90, and 115 4 stroke Mercury engines - the 75 and 90 are very comparable motors. He bought it new in June, but for some reason won't hold a charge. The price difference between the Mercury 60 Big Foot and 75 hp motors is $1,000. Some common issues with the motor include starting problems, fuel-related difficulties, and oil leakage. "I have 3 month old Tracker Pr "I have 3 month old Tracker Pro 16 with a Mercury 30 HP EFI 4 stroke that has approximately 20 hrs on it. Fuel supply problem - Check and repair. *Stock Laser Injected Mercury motors use a TPS value up to about 3000 RPM, so may be less affected, depending on severity of the problem. In addition to the problems listed above, here are a few other common problems that Mercury 115 Pro XS Four Stroke engine owners may encounter: Difficult starting: This can be caused by a variety of factors, including a weak battery, a faulty ignition system, or a problem with the fuel system. Customer: I have a 2003 mercury 75 hp 4 stroke that is sneezing or hiccup when accelerating,runs great at idle i have cleaned and synced carbs,checked compression, new spark plugs, got good fuel pressure, all 4 spark plugs are getting dry carbond up, sprayed carb cleaner around and cant fined any leeks ,also per manual i turned air and fuel jet Apr 19, 2023 · In this article, we will cover seven common Mercury 90HP 4 stroke problems, along with their causes and solutions. Join Date Jun 17, 2021 · Bought this thing used and looking like a mistake. *Stock Laser Injected Mercury motors use a TPS value up to about 3000 RPM, so may be less affected, Outboard 4 Stroke. It occurs when the gear Dec 26, 2005 · Re: Mercury 5HP 4 stroke carb problem If it's only going to be a couple of weeks of non-use,try not running it out of gas. 8K views 8 replies 5 participants last post by JonD Jun 17, 2020 Jul 10, 2007 · Re: Merc 4 stroke 115hp problems The following came from chapter 2 of the official factory manual titled, “Mercury/Mariner/Mercury Service Manual 115 Four Stroke Electronic fuel injection Starting model year 2001 starting serial number OT178500” From a troubleshooting standpoint, everything is pointing to the ECM saying you have low oil Jan 16, 2021 · I wrench quite a lot on outboards and love the challenge, so I bought a Tohatsu/Mercury 30 hp 4 stroke, which the previous owner said just needed servicing. May 25, 2013 · Since you're in California and retired, I would suggest you stick with the 4 stroke motor. Jul 23, 2022 · What The Majority of Users Feel About the Mercury 25 HP 4 Stroke? The majority of the Mercury 25HP four-stroke users are satisfied with the overall performance, and the motor performs excellently in shallow or even in cool water. There have been a few instances where at certain RPM's engine harmonics and vibration have shorted inside the starter motor, and caused it to engage the flywheel May 14, 2008 · Re: 2002 50 HP Four Stroke problem If this truely is a 4-stroke EFI, there is not a choke. I have a manual on Merc. Broken or Chipped Reeds: Will cause erratic engine vacuum, particularly at idle. FuelType. Troubleshooting shifting problems with your Mercury outboard motor requires a systematic approach. Mercury 3L/4 Stroke/Verado Moderator. 75HP Mercury Four Stroke. 40hp 4-stroke. Apr 25, 2023 · Shifting problems can be frustrating and potentially dangerous if not addressed promptly. No answer but I changed the impeller and get strong stream. Tore the carb apart but missed removing the low speed jet on top of the carb. Solved the problem. Gas. said it runs fine under load, could'nt test that myself so far Sep 3, 2023 · Mercury 60 hp 4 stroke not charging battery. Some times starts up ok and takes off onto plane but will very soon stall and stop running like the ignition was shut off and making a load "Blaaaaa" sound. Accelerates fine. Put Stabil thru it and hopefully won't have any problems this spring. Aug 7, 2018 · I have a 2013 Mercury 150hp four stroke with roughly 175 hours on it. Good luck whatever Jun 30, 2013 · Re: 115 Mercury 4 stroke problems I suggest you go onto BBC Boards which is the bass boat website. 9HP, 4-stroke, 2009 The correct OEM service manual part number for your engine model is 90-892248R01 And the correct operation manual is part number 90-8M0055688 superseded from 90-10241090 SN# 0R270500 & Up Nov 10, 2023 · Mercury introduced its first 4-stroke outboard motor, the Mercury 25 HP 4-stroke, in 1998. I was told that probably the carbs were dirty or plugged. The engine worked flawlessly last summer. The boat is a 2008 Princecraft 164 running a 2008 75hp Merc 4 stroke. The symptoms:-Typically starts fine, idles great-P. We are having intermittent issues with performance. See photos, links, and opinions on the 70 to 90 HP models. In this article, we will discuss some common mercury outboard shifting problems, their causes, and solutions. the fact it will start but bogs when you try to go indicates an issue with the automatic cold start enrichment or a leaking needle valve. Then, copy this message on to the Mercury Engine question blog. It's in the archives, or just Google the term. also when cruising it will just quit running … read more Jun 8, 2020 · mercury/mariner 75hp 3cyl 2 stroke 2002 Jump to Latest 4. So, how can you fix Mercury 60 Hp 4 stroke problems? Mercury 60 hp 4 stroke can face fuel problems. These issues can be frustrating, but fortunately, repairing them is not difficult. Jul 17, 2023 · We accidentally broke a quick disconnect fitting on the fuel line going from the gas tank to the motor. I put it in the lake this spring and it started running rough right off the bat, (spit and sputter bog a little)I forgot to put fresh gas in so I assumed it was that. The ecm controls fuel delivery. If i bring throttle to idle and the boat rest for 1-2 minutes the "alarm" goes off. read many other posts related to Tohatsu (the Tohatsu Guru is the man !!!!) did not know about the finicky nature of 4 strokes. This issue can be caused by a variety of factors, such as a blocked water intake, a damaged impeller, or a Feb 7, 2010 · Re: 2005 Mercury 25 hp 4 stroke fuel problem by opening the throttle plates your allowing more air into the intake to manually compensate for an over rich air fuel mixture. org Jun 2, 2023 · From identifying common problems to providing detailed, step-by-step guides for fixing them, we’ll ensure that you’re well-equipped with the knowledge you need to maintain your Mercury 4-stroke outboard engine in top condition. See full list on boatingsports. Also for: 75 marathon, 75 sea pro, 115, 125, 65/80 jet, 90, 100. Thread starter forrester4484; Start date May 25, 2017; F. This tends to clog pretty easy,and being 'dry' could be the problem. Nov 19, 2023 · This guide on mercury 75hp 4-stroke problems will help you understand the engine’s electrical and mechanical systems, identify potential issues, and take the necessary steps to get it running again. You could call them and let them know what the engine is doing And make an appointment so everyone will know it started doing this now and not next year. Oct 21, 2019 · I am new to this forum and am having some issues with my 2006 Mercury 25 hp 4 stroke efi motor. Max McHugh of Marine Matters explains how to fix the most common problems, from gummed-up carburettors Aug 2, 2012 · There is a "Pro XS" or "Pro XS 115 hp" which is likely one of the motors you're referencing - but there are a couple other Mercury 115 hp 4 stroke motors as well. Users discuss the common issues with Mercury FourStroke outboard engines, such as carburetor jets clogging, corrosion, and trade-in options. Problem #1: Overheating. Its a Motomaster Nautilus 80a starting battery. 5hp 4 stroke (1F03211HK) that will not start for the life of me. Hard to know exactly which motors you want to compare? I will say this. IF you have the old oil you can check it to see if water has settle to the bottom. I carefully removed the cowling and checked the main fuses to the motor. Another problem it faces is carburetor buildup. The engine's electrics are Yamaha, although they get fitted with connectors to mate with standard Mercury wiring harnesses. Have also had problems with the fuel demand valve between the tank and the motor. Using a high-quality 10-micron separator can solve the issue. Other Common Problems. At low revs it idles irratically. When I first go out and run, for any length of time, the engine runs fineright up until I throttle down. Feb 9, 2017 · That being to either live with the problem (not a big one IMO) or drive back and forth trying to find a solution. Jun 23, 2021 · Had to diagnose my 4-Stroke outboard and ran through some checks. The 15 amp fuse was blown. The 60's essentially the same motor as the 40 hp and 50 hp. It’s very frustrating, especially when Mercury won’t stand behind their May 27, 2005 · Re: Mercury 40 H. Aug 3, 2013 · After reading tons of info I never once came across anyone who removed their restrictor plate and had engine problems. So, before venturing out, let’s dive deep into the most common problems Mercury 25 HP 4-stroke owners face, and explore potential fixes to keep your engine purring like a kitten. Oct 29, 2018 #1 Jul 30, 2007 · Bought 6 hp 4 stroke in 2006 . Spray down the cowling seal with a silicone spray to keep it supple and watertight. Nov 10, 2023 · Mercury 60 Hp 4 stroke is a reliable outboard motor. Hard starting, floods, some times idles on only one or two cylinders, sneezes out the intake occasionally. Other. Yamaha outboard not charging battery Jun 9, 2008 · Re: 2005 mercury 4 stroke efi 30hp alarm seems this is a problem with alot of owners. I noticed a small amount of engine oil on my garage floor & on the lower unit cowling & transom saver after I took delivery of the boat & outboard. But people often particularly ask whether the Verado 300 are reliable enough? Dec 23, 2009 · Re: 09 Mercury 20 HP 4 stroke problems You are ok, It is good till 8/22/11. It is acting like it is not getting any fuel. Don't recall if idles rough in neutral. May 15, 2023 · Yamaha 60 HP 4-Stroke Problems and Solutions (Proven) Yamaha 60 HP 4-Stroke Problems and Solutions (Proven) West Wight Potter 19 Problems: Solving the Most Common Issues. NOTE:-This fuel pump is not an original part. 1. Read lots of info of some doing it with good results on both the 40-60hp line and 75-115 line so I thought I might give it a try and report the results. It'll be so much quieter at idle to middle speeds than a 2 stroke. One of the most common issues that boaters face with mercury outboards is stiff shifting. The boat is a 4. 3 months out of the warranty period, which he has been told they won't even consider looking at. After your tip about the mixture idle screw did a bit more digging and found a service bulletin from Mercury regarding idle and low rpm poor performance as a result of ethanol in the fuels clogging the carb. I removed Jun 17, 2020 · Well, it’s year four and still having the problem with the motor. It currently will go 22. after motor is warm it wont restart when shut off. It worked perfectly last summer (was serviced at 40 hours and the break-in period was followed to the letter). 5L V6 at 200 and 250 hp). i bought a 2006 25ft sun tracker pontoon boat with a 75hp mercury 4 stroke efi. Mar 16, 2014 · MERCURY - ( 90EFI H. Every time I take it out since last fall it does the same thing. <br /><br />DHP Feb 6, 2016 · The Boating Forum - 2004 Mercury 115 4 Stroke EFI Problems - Im at a loss and hope someone here can help. Some of them are very rare and can happen once in a thousand cases. Aug 19, 2008 · Re: Problem with 15 hp Mercury 4 stroke Yesterday I went to start my outboard ,after firing up with choke on it just wouldn,t take any throttle . However, it does face some problems which are frustrating. Changed spark plugs and has new gas going through it. May 20, 2011 · I've got a 3 yr old Mercury 25hp EFI 4-Stroke. Look what I found! Seal was smashed on feed tube coming up from the water Jan 3, 2011 · Re: Starting Problem with 40 hp 4 stroke EFI I would take a fuel sample out of the Vapor Seperator Tank. You may have an obstruction causing the instrument to not function properly. Mar 29, 2021 · Small four-stroke outboard engines are pretty simple. If not you need to run the engine a few minutes and check for a change in the oil characteristics. Joined Oct 29, 2018 Messages 1. 75m Ally Craft Bar Raider. Sep 13, 2023 · Step-By-Step Guide on How to Diagnose and Troubleshoot Shifting Problems for Mercury Outboard. - Has your outboard speedometer quick working? Maybe the reading doesn't seem quite right. With that said, there have been many questions on Mercury 4 Stroke EFI problems. Mercury 25 Hp 2 Stroke Carburetor Problems: Troubleshoot and Fix Now! Mercury 60 Hp Bigfoot 4 Stroke Problems: Troubleshooting Tips; Popular Post Aug 20, 2007 · I have a three month old Mercury 60 hp 4 stroke Bigfoot engine. I think these engines are too new to figure out if they can be easilly modified. Aug 2, 2021 · I have a 2020 Mercury 4-Stroke 20hp EFI that I bought last July, making it now just over a year old. It will Jun 16, 2021 · I have a 2009 75 hp merc 4-stroke. I took it out and the low pressure pump was not keeping up. (2006 )) Serial No: 1B355938 Model No: 1F90413FY Parts List for model 1F90413FY: 75/80/90/100 EFI 4-STROKE - Mercury, Mercruiser, Force, etc. I was running it on the water going about 25 mph when everything shut down leaving me stranded in the middle of the lake. Apr 13, 2018 · I have a 2011 Mercury Outboard 60 hp 4 stroke engine. Perhaps another member could direct you to it. So, we are not going to talk about them. Join the website. It fired right back up so I just moved on. Motor is now running rough only at low/idle speeds. Some it is necessary to replace the complete fuel module. A 4 stroke will save you $$ in fuel*worth the price of a 2 stroke over the life of the engine. Oct 29, 2018 · 2006 Mercury 115hp 4 Stroke Fuel Problem. I purchased the boat in February and have had it out several times running with no issues. I,ve installed new plugs today but that hasn,t helped . Aug 15, 2018 · I have used this forum before to solve problems and just want to say thanks for all the information. A diagnosis of my 4-stroke outboard that had no spa Jan 4, 2024 · However, even the most dependable engines can encounter bumps on the water. If you’re also thinking of Mar 28, 2023 · 3 Possible Causes of Bad Coil on Mercury Outboard. The motor is electric start and when I go to start it in the morning I have to press the starter about 5 times before it will start. This has happened with two new starter batteries, current battery is a size 31. forrester4484 Recruit. Initially I was set on the tried and true Yamaha F150, however after doing some online research I'm beginning to think I should consider the Mercury 3. One of the most common problems with the Mercury 90HP 4-stroke outboard motor is overheating. When you turn the key to the run position, you should hear the electric pump hum for about two seconds. We are having serious problems with fuel in the oil, oil level rising, engine failure due to lack of lubrication of #1 rod end bearing. 90hp four stroke revs to 6000rpm - YOU ARE WELCOME TO CHECK MERCURY SPECIFICATION IF YOU THINK I AM WRONG Mercury 30 Hp EFI 4-stroke troubleshooting: The main problems and ways to fix it. Cant remember the mane of the part replace but it charges the battery. 3. Nov 19, 2023 · This guide on mercury 75hp 4-stroke problems will help you understand the engine’s electrical and mechanical systems, identify potential issues, and take the necessary steps to get it running again. /** * Front to the WordPress application. 4 strokes are also very smooth at an idle. i purchased it from a used outboard dealer and took it out for the first time today, it will start right up and idle great, but soon as i try putting it into gear, forward or reverse it will hesitate and sometimes die out. Sep 19, 2021 · Hi guys I've got this mercury 75hp 2 stroke it hasn't started in a few years but I've finally got it turning over but not starting when I push the key in for choke im not getting any clicks but did hear like a fuse blowing or something or it could have been something else im a novice here haha but learning is there a way to use a manual choke On his heavy aluminum law enforcement boat was a 75 HP 4-Stroke Mercury. The anecdotal evidence is that there are no problems with the Yamaha 90-HP four-stroke motor with carburetors, but there are definite problems with the Mercury 90-HP with carburetors, even though the power head components are believed to be the same. Joined May 25, 2017 Messages 3. May 16, 2016 · I have the exact same problem, Mercury 60hp EFI 2006 model, i have changed the IAC , new plugs, fuel filters x 2, new thermostat and new fuel line/hand pump but no luck, next I will try heat sensor then low pressure fuel pump. 2023 Mercury SeaPro 75 hp 2023 Mercury SeaPro 75 hp Jun 20, 2021 · I have a 2006 merc 75 4stroke EFI. If the gas is stale and smells varnished you might want to drain it and fill the fuel filter with qickkleen or ringfree and prime the bulb with a fresh portable tank of gas and let it sit over night with fresh gas in it. In the same boat setup, 16 foot rib. Oct 9, 2019 · I recently purchased a 2005 sun tracker party barge and it has a mercury 90hp 4 stroke outboard on it serial# 1B103481 90 ELPT 4S with 8 pin harness. 9 HP Mercury 9. php which does and tells WordPress to load the theme. After repairing the fuel line, the motor will not start. At about 5000-5100-5200 RPM the motor will run fine for a bit (Maybe 30-45 minutes) and then will "lug" -slow/fast/back and forth. Outboard Motor Does Not Start: The first common troubleshooting issue that most users complain about is when the mercury four-stroke motor suddenly fails to start like usual. Aug 23, 2021 · But I’m in the second Mercury outboard that I had bought new, Then I’m not used to outboard problems. In my life if a problem is minor to me, but the fix is a much greater problem than the other problem, then I have been known to live with the small problem. Dec 7, 2023 · 4. 1998 and later 75-125 hp 3 and 4 cylinder 2 strokers, updated in 2015. The engine had 850 hours on it and was just 1-1/2 years old. Mine overheated after 3-5 minutes at full throttle. Dec 14, 2021 · A recent problem that has cropped up on some of the 4 stroke Mercury outboards, how to check yours and how to fix it. Here’s a step-by-step guide to help you diagnose and resolve these issues: 1. But if this motor has set for two years I would bet that the electric fuel pump is seized up. Cheap engine oils w/o antifoaming agents will look contaminated. Hello all, I have a 2013 Mercury 75 HP 4 stroke, Serial #1B988786 running on a Crestliner VT17. Changed fuel filter last October when motor would bog down upon acceleration. it seems to have to co0l down for about 1/2 hour then fires right up. I think I’m right in saying (but correct me if I’m wrong) that I need to get it serviced by a Mercury authorised dealer in order to uphold the What's going on everybody Rob here with a little of the an update on why my Mercury 75 hp boat motor would not run yes it's a brand-new Mercury 75 hp four st Mar 29, 2011 · Re: 2008 Mercury EFI 4 stroke Fuse Issue I know this doesn't sound like it makes any sense, but check the starter motor and battery cables inside the cowl for signs of heat damage. There are a few causes for which you can have a bad coil on a Mercury outboard. Nov 4, 2022 · So, you are not limited by variety. May 20, 2017 · I got a ticket today for parking my boat in front of my house (on the lawn) and I wanted to fix it asap before moving it over to the lake. Dec 21, 2020 · My Mercury 75hp four stroke would run very rough after idling about 1200rpm with the motor trimmed in for a few minutes. Thread starter Baur; Start date Jun 19, 2016; B. I had before a 2013 Mercury 4 stroke 60 hp. Jul 23, 2022 · 3 Common Mercury 4 Stroke Outboard Motor Problems: 1. It worked flawlessly. I couldn't find it through the SEARCH. It is essential to check the alternator, wiring, and voltage regulator to ensure they are functioning correctly. After I come down to idle or neutral, it starts running rough. idles good and is good at top end but cuts out in mid range. It starts on the first pull and runs great in idle. 2. Some users also mentioned that this compact electric motor is faster and torquey than other competitor’s motors. On the 115-HP they used their EFI system, and now have it on the 90-HP. ENG:# 0R259224, Model# 1F20301HK 2008 MERCURY 4 STROKE 20 EH 4 Warranty Period: 08/22/2008 - 08/22/2011 May 8, 2024 · I have a 2017 mercury 115 4 stroke that has intermittent starting issues. The problem I am having has occured on three different occassions with all being in 50 and below weather. I've checked gas and its good. This has been going on for more than a year. Problems with engines are inevitable, and the mercury 50 hp 4 stroke is no exception. Sep 15, 2017 · Get the most out of your Mercury 25 hp EFI 3 Cyl 4 stroke My Merc 25 hp EFI 3 Cyl 4 stroke has always been lacking in power to get my boat up on plain. Jul 5, 2018 · Have been seeing a lot of problems with the grey fuel line on these Mercs. Also installed new plugs. The engine started but won,t rev ,it pumps water Apr 6, 2016 · It's a 1985 75 hp mercury that wont start but will turn over just fine. Checked the plug, replaced gas and even tried talking nicely to it. I have had it services (it only has 33 hrs on the clock) as well as computer diagnosed with no results. Apr 26, 2017 · With Mercury simplifying their engine platforms, they have a lot of situations like this. Apr 28, 2021 · If you're still having problems resetting your password, 60 HP 4 Stroke (2012) Fuel issue Mercury 3L/4 Stroke/Verado Moderator. Last summer I started having problems with the engine. Jun 19, 2016 · 2014 Mercury 90 HP EFI 4-Stroke - Alarm, Runs then Quits. *As for the 4 stroke hole shot issues look up Hydrofoil-GT, what it says on there site it does. 4. Has your outboard speedometer quick working? Maybe the reading doesn't seem quite right. I had no power to the ignition, live wells, or anything. He bought it like new, and is now only approx. Mercury 30 EFI Troubleshooting. I installed a new Quicksilver impeller kit, new filters, and new oil. He'll point you into a direction. Also when alarm goes off, I checked the water stream coming out and it was only slightly warm. The issue started out around 20 Hours and has progressively became worst. The brand name and any related model names May 12, 2024 · Have a 2017 TXW with a 75hp 4-stroke Mercury. 5 HP 4 Stroke idles but won't accelerate Any luck with this problem? I am having the same problem with no relief. This is my first outboard so I have a lot of questions. You’ll surely find a fit that matches your budget and power requirements. Decide for your Jul 18, 2013 · I have a 2003 Mercury 4 stroke 75 HP 4 cylinder carbureted outboard that until this year has worked without too many problems. May 2, 2015 · I own a 2006 50 HP Mercury 4 stroke EFI Outboard. Jim: Barney: posted 11-09-2003 07:24 PM ET (US) Sep 27, 2009 · I see a lot of posts on engines overheating under various conditions. I have cleaned and cleared every part of the carb. We will be on the lake and shut off the engine for awhile to fish and when I try to start it it crank fine but won’t fire. 9 HP Sailpower, XR10/MAG 10/Viking 10 Mercury Sea Pro/Marathon 10 Mercury 15 HP 1. I have taken it to two “mercury certified mechanics” and they can’t replicate it, albeit, I have offered to go out in the water to show them. I did it more abruptly than normal so I kind of chalked it up to that. Once I located that and pulled it out I removed a piece of debris no bigger than a grain of table salt. I have a 3. View and Download Mercury 75 service manual online. Nvfisher Recruit. Got a spark tester and it appears there is no spark at all 4 plugs. There is no primer bulb on this system. May 15, 2023 · Repairing Mercury 50 Hp 4 Stroke Problems Mercury 50 Hp 4 Stroke Problems. I use STABIL for ethanol in my fuel. Do I have a dirty carb? and will cleaning out the float chamber help . Then, if feasible, install the 90 HP peculiar parts on the 75 HP motor so as to turn it into a 90 HP model. 4 stroke fuel problem? I have a similar problem with around 2000 or 2001 40 hp 4-stroke motor has had carbs completely gone through fuel pump seems to have good pressure. dlc sqfma grmuohl vgxttcp yrxdzv mofbnr owgorof btvb buo bctksjw