Mercury 2 stroke outboard troubleshooting

I have a 40 hp mercury, 2 stroke, 4 cyl- 1990's. will idle fine, run in the driveway ok. At plane/ wot - it dies. IT started 4 trips ago. 1st trip would go to WOT, but got on plane, second trip, got on plane in the am, would not plane later, last trip , would not plane. I have checkd the following: 1. fuel - it s new

Mercury 2 stroke outboard troubleshooting. I'm trying to find the repair manual for mercury outboard 2 stroke with an inline 6 #382. Walter Ahlgreen (Wednesday, 21 June 2023 19:32) I need the manual for Mercury 60 hk EFI 2004 ... 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 ...

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The Mercury Marine serial number 0B308972 refers to a 60 horsepower, three-cylinder outboard motor manufactured in 1988. The motor’s model number is 1060312BD, and its catalog numb...1 Problem #1: Stiff Shifting. 2 Problem#2: Grinding Noise. 3 Problem #3: Difficult to Engage Gear. 4 Problem #4: Gear Slipping. 5 Problem #5: Neutral Gear Issue. 6 Problem #6: Delayed or Slow Shifting. 7 Problem #7: Gear Shift Lever Not Staying in Place. 8 Conclusion.The Classic Convertible Mercury Cars Channel lets you see under the hood of Mercury convertibles. Get specs on and see photos of classic convertible Mercury cars. Advertisement The...It's a 1985 75 hp mercury that wont start but will turn over just fine. I've checked gas and its good. i found a few spots in the wiring coming found the ignition switch that had the insulation cracked but wires seemed to be ok. Got a spark tester and it appears there is no spark at all 4 plugs. Change out ignition switch and changed battery ...Mercury Mariner 40HP 2-Stroke Outboard Service & Repair Manual. Serial Numbers: Fixing problems on your outboard is a Do-It-Yourself approach with this repair manual as it contains every troubleshooting and replacement procedure provided by the manufacturer, including step-by-step instructions, clear images, and exploded-view illustrations.16K. 920K views 3 years ago. This is really an easy fix you can do yourself without having to pay a mechanic. 🔷️ HERE IS PART 2 of this Mercury outboard fix. Finding the high …Yes, Mercury 4-stroke outboards are known for their reliability, performance, and efficiency. They are designed with advanced technology that provides smooth operation and requires less maintenance compared to 2-stroke engines. Mercury is a well-known and respected outboard motor brand with a long history of quality products. What are some ...Mercury outboard engines are renowned for their reliability, durability, and performance. The 4-stroke outboard engines, in particular, provide boaters with dependable power, smooth operation, and excellent fuel efficiency. However, like any other mechanical device, Mercury 4-stroke outboards might face occasional problems that require troubleshooting and fixing. This comprehensive blog post ...

Don't get stuck at the boat ramp - fix your outboards fast, with these basic troubleshooting tips. By Gary Reich. February 23, 2014. When you back down the ramp, turn the key, and nothing happens, it's a problem. Or, it would be, if you hadn't seen this video on basic troubleshooting when your outboards won't start. Advertisement.Hey guys! I have a fairly straight forward diagnosing process for diagnosing the no spark on these switch box years of Mercury. They seem to be one of the mo...Causes of Mercury Outboard Not Reaching Full RPM. Understanding the potential causes behind a Mercury outboard not reaching full RPM is essential for effective troubleshooting. Let’s explore some common culprits: Fuel Delivery Issues. Ignition System Problems. Air Intake Blockages. Propeller Issues.MERCURY MARINE 70HP 75HP 80HP 90HP 2 STROKE OUTBOARD ENGINE SERVICE REPAIR PDF MANUAL 1987-1993 Download Now; Mercury Mariner Outboard 75hp 75 Marathon & Sea Pro 2 Stroke Service Repair Manual Download 1997 Onwards Download Now; Mercury Outboard 75hp-275hp Repair Workshop Manual 1990-2000 Download …

Find Your Manual. To access your manual, review and agree to the terms then fill out the form below. Service Manuals: To order a printed version of the Service Manual for your …Which online-only banking solution is better for you? Read our review to compare Mercury and Novo’s features, use cases, and fees. Banking | Versus REVIEWED BY: Tricia Tetreault Tr...In this video Adrian and I bring an old Mercury 3.3HP outboard motor back to life and try to get it to work with a propeller made for a very different outboa...The 1:100 ratio of fuel mix is a ratio of one part TCW-3 outboard engine oil to every 100 parts of fuel. This ensures that the crankcase bearings, piston rings and all other moving...Here's a quick list of parts that have been replaced on the powerhead within the last 4 months leading up to the first sign of trouble for either regular maintenance or repair: - Spark plugs. - Fuel pump rebuild. - Fuel filter. - fuel tank connector. - …

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1,078. May 27, 2010. #3. Re: Mercury 2+2 - How does it work? There is no idle circuit on the lower two carbs. That means no gas to them at idle so they don't fire. As you open the throttles, the main circuit engages and begins allowing gas to those bottom two cylinders and they fire. The accelerator pump is to assist in getting those bottom two ...Seloc workshop manual for maintenance, repair and overhaul of Mercury / Mariner 2-stroke outboard motors from the years 1990-2000, including jet drives. Versions: 1-6 cylinders, 2.5-275 hp, with carburettor and injection. This Seloc Repair Manual for Mercury and Mariner outboard motors describes extensively work on the engine and the tail …If you are in the market for a new Mercury outboard motor, finding a reliable dealer near you is crucial. A reputable dealer can not only help you choose the right outboard for you...1992 9.9 Mercury 2-stroke Bought used and only had it for a couple of months. Last time I've used it was in Prineville Reservoir over July 4th. Had little issues starting it then, but not much. I've only ran it once before that; when I first bought it, and it never ran perfectly. Onto this weekend's problems:MERCURY MARINER OUTBOARD 25HP MARATHON 25HP SEAPRO 2 STROKE WORKSHOP REPAIR MANUAL DOWNLOAD ALL 1998 ONWARDS MODELS COVERED Download Now; Mercury Mariner 25hp 4-stroke Bigfoot Service Repair Manual Download Now; ... 1990-2000 Mercury Mariner Outboard 25hp, 2 cyl, 2 stroke Engine Service …how I fixed my power trim motor.

For a Mercury two-stroke model, 2- to 20-horsepower outboard motor manufactured before 1980, use a blend of unleaded gasoline with a posted octane minimum of 91 and Mercury or Quic...Problem #1: Overheating. One of the most common problems with the Mercury 90HP 4-stroke outboard motor is overheating. This issue can be caused by a variety of factors, such as a blocked water intake, a damaged impeller, or a clogged cooling system. If your motor is overheating, you may notice a high-pitched alarm or a reduction …That was a few days ago so there's nothing related to an electrical component overheating. I've been troublshooting (resistance only, waiting for a DVA adapter to arrive) and found the following. Capacitor charging coil - Bad 61.1 Ohms - Manual calls out 93-142. Trigger coil - Good 92.5 Ohms, Manual calls out 80-115.Lightweight Heavyweights. Enjoy classic TwoStroke speed, power and performance thanks to high-displacement powerheads and exceptionally lightweight designs. And with outboards ranging from 2.5 to 50hp, there are solutions for powering a wide range of boats and applications.For a Mercury two-stroke model, 2- to 20-horsepower outboard motor manufactured before 1980, use a blend of unleaded gasoline with a posted octane minimum of 91 and Mercury or Quic...Small four-stroke outboard engines are pretty simple. Max McHugh of Marine Matters explains how to fix the most common problems, from gummed-up carburettors ...1. Battery. Your boat battery is where it all starts. Outboards require higher cold cranking amps than many other engines and therefore a dedicated marine battery …Aug 4, 2010. Messages. 4. Aug 4, 2010. #1. I have a 2000 Mercury 40 HP 2 stroke (says Tracker on the cover) on a 18ft suntracker pb. I just got the boat and had it out about 4 times in the last 10 days. Ran great. Went to go out on Monday after a bad day at work and it …The reason. Among all the things that can cause a coolant leak in your Mercury 50-hp 4-stroke engine, the most common reason is a faulty gasket or O-ring. These can eventually wear out and leak, especially if not properly maintained. Another possibility is a crack in the engine block or cylinder head.

View and Download Mercury 9.9 TwoStroke operation, maintenance & installation manual online. 9.9 TwoStroke outboard motor pdf manual download. Also for: 15 twostroke, 18 …

Owners Manuals. To easily access an Owner’s Manual with consolidated information specific to your Mercury engine – agree to the terms and fill out the form below. To order a printed version of the Service Manual for your particular Mercury Outboard or MerCruiser Engine, click here. Outboard Troubleshooting Tip 1: Check the Obvious. The simplest things that would prevent an engine from starting can be easily overlooked, but start with the obvious first. Most outboards won't start unless the shifter is in neutral. Double-check that the motor hasn't been left in gear by moving the shifter in and out of gear a couple of times ... Jan 2, 2017 · I have a 2005 Merc 90 hp 2 stroke outboard that has always ran well until recently. It starts good and will take off running good for maybe 15-30 seconds running about 4000 rpms. Then it starts losing power and acts like it is starved for fuel. The rpm will surge and drop between 3000 and 4000. Running 90 octane ethanol free boat gas. First, service your outboard motor regularly, and check each of the key components carefully to ensure reliable operation. Second, understand how your motor works, and know how to diagnose and resolve problems if it refuses to start or keep running. Third, take a boat safety class and make sure everyone on board abides by the rules.VERY intermittent problem continues for over a year, can't seem to identify the problem. The engine is a 2017 Mercury 150 4-stroke mounted on a Tracker boat. The engine has 240 hours on it and the problem started occurring at about 170 hours. Motor runs great most of the times, however it intermittently begins to miss and sputter. Summary of Contents for Mercury 40. Page 1 SERVICE MANUAL MODELS 40·50·55·60 With Serial Numbers United States 0G531301 and ABOVE Belgium ..09974454 and ABOVE 1997, Mercury Marine 90-852572R1 JANUARY 1998 Printed in U.S.A. Page 2 This service manual has been written and published the same locations whenever possible. Broken or loose magnets on your flywheel will cause ignition issues so they are definitely worth checking. 5. Stator. Your stator creates voltage for two reasons. To send voltage to your CDI unit (power pack or switchbox) to run your engine and to send voltage to your rectifier/regulator that will charge your battery.Oct 27, 2015 · Mainly because most results bring up propeller issues. 1996 Mercury 2 stroke 50hp 3cyl serial# 0G346628. I'll start from when the problem occurred. I was out on the bay (around weedon island in FL), going full speed (around 32mph) on my scout 155 sportfish. Hit some shallow area which caused my motor to lift a bit. The trim stopped working. 2: Mariner 50 4cyl 4 stroke suspect coil pack: 11: Mercury 25 wiring diagram: 4: 79' Merc 140; having problems with response time. Just did plugs, and coil(was cracked). 5: Mercury 650 coil: 3: 75 hp no signal to the coil MERCURY/MARINER 75hp OUTBOARD: 2: Mariner coil: 4: Spark plug coil: 1: What's this extra coil part do? 6

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Mercury Mariner 40HP 2-Stroke Outboard Service & Repair Manual. Serial Numbers: Fixing problems on your outboard is a Do-It-Yourself approach with this repair manual as it contains every troubleshooting and replacement procedure provided by the manufacturer, including step-by-step instructions, clear images, and exploded-view …Jun 2, 2023 · Mercury outboard engines are renowned for their reliability, durability, and performance. The 4-stroke outboard engines, in particular, provide boaters with dependable power, smooth operation, and excellent fuel efficiency. However, like any other mechanical device, Mercury 4-stroke outboards might face occasional problems that require troubleshooting and fixing. This comprehensive blog post ... Had to diagnose my 4-Stroke outboard and ran through some checks. A newly discovered issue in my stator. A diagnosis of my 4-stroke outboard that had no spa... Find Your Manual. To access your manual, review and agree to the terms then fill out the form below. Service Manuals: To order a printed version of the Service Manual for your Mercury or MerCruiser® engine, click here. Mercury Outboards: Find Your Serial Number. Locate the serial number label on the transom bracket of your outboard. Engine Repair and Maintenance. Mercury & Mariner Outboards . WOT problem/ fuel system issues: 40 hp mercury, 2 stroke, 4 cyl- 1990's. Thread starter neamakri; Start date ... I have a 40 hp mercury, 2 stroke, 4 cyl- 1990's. will idle fine, run in the driveway ok. At plane/ wot - it dies. IT started 4 trips ago. 1st trip would go to WOT, …Check the Water Pump. If both the intake and output are clear, the next thing to check is the water pump, which sits at the top of the outboard’s lower unit. A bad water pump pushing water up to the powerhead may be causing the engine to overheat. To inspect the water pump, remove the lower unit on your outboard to access the pump.Like any computer, a Mac is prone to serious problems over the course of its life. A wide variety of things can go horribly, horribly wrong. From a complete failure to start to tha...Apr 19, 2023 · Problem #2: Starting Issues. Another common issue with the Mercury 90HP 4-stroke outboard motor is starting problems. This can be caused by a variety of factors, such as a dead battery, a faulty starter motor, or a clogged fuel system. If your motor is experiencing starting issues, it may crank slowly or not start at all. Solution: Step 5: Connect the tachometer’s signal wire. Connect the purple wire from the tachometer to the purple wire on your outboard motor’s ignition coil. This wire will carry the signal from the ignition coil to the tachometer, allowing it to display the engine’s RPM. Step 6: Secure and test the connections. Aug 4, 2010. Messages. 4. Aug 4, 2010. #1. I have a 2000 Mercury 40 HP 2 stroke (says Tracker on the cover) on a 18ft suntracker pb. I just got the boat and had it out about 4 times in the last 10 days. Ran great. Went to go out on Monday after a bad day at work and it would not start.1.1 Fuel System Problems; 1.2 Spark Plug Troubleshooting; 1.3 Propeller Issues And Solutions; 1.4 Engine Power And Acceleration Problems; 2 Preventative Maintenance Tips. 2.1 Regularly Cleaning And Flushing The Outboard Motor; 2.2 Properly Lubricating Moving Parts; 2.3 Checking And Replacing The Fuel Filter; 2.4 Inspecting And Replacing The ...This troubleshooting guide will help you diagnoses a Mercury outboard engine that won’t start. But keep in mind that there could be more than one cause for why a Mercury outboard fails to start up. ... 2002-2005 Mercury 40 hp 4-Stroke 2002-2005 Mercury 50 hp Four-Stroke 2002-2005 Mercury 60 hp 4-Stroke 2002-2005 Mercury … ….

12. Aug 15, 2011. #1. Hi. I have a 1993 mercury 4hp 2 stroke outboard. I have a weak spark. Engine runs when spark plug gap is at 0.25mm instead of recommended 1mm. I have changed exciter coil under flywheel and ignition coil and checked all wires and they are fine but still weak spark . According to sources as i don't have stators and points ...This Mercury 4 stroke was running rough. it would stall and bog while trying to get underway. Quick diagnosis showed the problem and was a simple fix.Jun 10, 2023 · The Mercury Optimax 115 is a popular outboard motor that is known for its reliability, fuel efficiency, and outstanding performance. However, like any mechanical device, it is not immune to issues. In this blog post, we will explore some common problems with the Mercury Optimax 115 and provide solutions to help you troubleshoot and maintain … Mercury Optimax 115 Problems: Common Issues ... Home. Forums. Outboard Motors Forum. Mercury Mariner Outboard Forum. Post thread. Repair, troubleshooting, advice & discussion. Shop Mercury …Page 29 Manual, 6 positions Mercury/Quicksilver 2‑Stroke engine oil: ... substitute another brand of 2‑cycle outboard oil that is NMMA Certified TC‑W3. Page 41: Engine Break-In FUEL AND OIL MIXING PROCEDURE Pour the full amount of oil, along with one gallon of gasoline, into an approved container. ... TROUBLESHOOTING Starter Motor Will ...In this video we go through a complete service of a two stroke outboard. This includes:Removing and inspecting the spark plugsPerforming a compression testIn...This guide to troubleshooting why your Mercury outboard motor stopped working addresses issues common to the majority of Mercury outboard models. We recommend that you locate or download the repair manual for your specific engine for more information, and consult a certified mechanic over any uncertainties.Broken or loose magnets on your flywheel will cause ignition issues so they are definitely worth checking. 5. Stator. Your stator creates voltage for two reasons. To send voltage to your CDI unit (power pack or switchbox) to run your engine and to send voltage to your rectifier/regulator that will charge your battery. Mercury 2 stroke outboard troubleshooting, Not Running on 4 Cylinder. Intermittent Beeping. 2+2 Carburetor problems. Outboard Won’t Throttle. Stroke Not Peeing. Misfire Problem. motor won’t get past 3000 RPM. In this article, I’ve explained …, Common Problems with Mercury 40 HP 2-Stroke Outboard Engines 1. Fuel-related Issues. One of the most common problems with outboard engines, including the Mercury 40 HP 2-stroke, is fuel-related issues. These can manifest in various ways, such as poor performance, stalling, or a rough idle. Here are a few fuel-related problems and their solution:, View and Download Mercury 60 manual online. 60 outboard motor pdf manual download. Also for: 75, 115, 125, 90. ... 4-stroke (87 pages) Outboard Motor Mercury 115 Manuam ... to such a dealer, written notice must be given to Mercury. We will then arrange for the inspection and any covered repair. Purchaser in that case shall pay for all related ..., 1. Check oil level using the sight gauge in front of the outboard. 2. Remove the fill cap and fill tank with oil. Capacity Fluid Type Mercury or Quicksilver Premium 2‑cycle Oil tank 3.2 liters (96 fl oz) TC‑W3 outboard oil 29163 3. Page 33: Filling Fuel Tank FUEL AND OIL IMPORTANT: Always make sure the oil tank caps are threaded on tight., Aug 11, 2005 · Aug 11, 2005. #2. Re: Mercury 2Cycle 25 HP no spark. Since you have no spark (make sure this is the case by using a spark tester or someother method) you will need to test the trigger, stator, and switchbox. If you have a Seloc manual for your engine these tests will be easy. It amounts to testing the resistances between different trigger leads ... , Mar 20, 2016. #2. There is a number of things that could be the problem here. You basically have two choices here: 1 - invest the 30'ish bucks in a manual and go through the ignition troubleshooting procedures - since you say that you are not "mechanical" when it comes to outboards it could get quite cumbersome and confusing trying to explain ..., Causes of Mercury Outboard Not Reaching Full RPM. Understanding the potential causes behind a Mercury outboard not reaching full RPM is essential for effective troubleshooting. Let’s explore some common culprits: Fuel Delivery Issues. Ignition System Problems. Air Intake Blockages. Propeller Issues., POWER TILT and TRIM TROUBLESHOOTING. POWER TILT TRIM Electric Motor Differences – by Joe Reeves. The 3 wire unit incorporates a solenoid for the up mode, and direct wiring for the down mode. The 3 wire motor has a “Black”, “Blue”, and a “Green wire. Battery negative (-) connects to the black wire…. Battery positive (+) …, Mar 24, 2014. #2. Re: 2000 90 hp 2 stroke won't start. First off that is a 2 cycle engine requiring oil to be mixed with the fuel. Unless you are using a product such a Sea Foam (aerosol) which has oil included, you may be scuffing up your engine internally from running fuel without any lube. Spraying into the intake means you removed the cowl ..., Feb 8, 2021 ... Comments59 ; Fixing an outboard that stalls at idle. Dangar Marine · 245K views ; Ignition System Troubleshooting | Outboard Has Spark But Won't ..., If it isn’t, it will cause your engine to become fuel starved, run rough, and eventually stall. Simply twist it open and monitor your engine for improvement. If your outboard motor isn’t running at its best, check the fuel vent on your portable tank to make sure it’s open. Photo courtesy of Attwood., Troubleshooting and figuring out where the issues are. Step 1 of getting my outboard motor running properly again. Troubleshooting and figuring out where the issues are., Don't get stuck at the boat ramp - fix your outboards fast, with these basic troubleshooting tips. By Gary Reich. February 23, 2014. When you back down the ramp, turn the key, and nothing happens, it's a problem. Or, it would be, if you hadn't seen this video on basic troubleshooting when your outboards won't start. Advertisement., MRCY: Get the latest Mercury Systems stock price and detailed information including MRCY news, historical charts and realtime prices. Indices Commodities Currencies Stocks, Mainly because most results bring up propeller issues. 1996 Mercury 2 stroke 50hp 3cyl serial# 0G346628. I'll start from when the problem occurred. I was out on the bay (around weedon island in FL), going full speed (around 32mph) on my scout 155 sportfish. Hit some shallow area which caused my motor to lift a bit. The trim stopped working., View and Download Mercury 25 Series owner's manual online. 25 Series engine pdf manual download. Also for: 30 series, 30eh, 30e, 25m, 30m, 25 2-stroke, 30 2-stroke., Re: Mercury 2 Stroke 50hp Won't Idle. For everyone who might have this problem, I thought I would share the solution to the problem. The carbs were loaded with water and the fuel filter was half full of water. We are going to replace the gaskets, clean out the carbs, drain the fuel filter and replace it, and also put in an inline water seperater., After turning on the key I received the 4 beeps that indicates a low oil level. This video goes over the trouble shooting process to determine the problem. I..., Outboard. Verado® (250-600hp) 350-400hp; 250-300hp; 600hp; FourStroke (2.5-300hp) 250-300hp; Fourstroke 90-115hp Command Thrust; Fourstroke 9.9-60hp Command Thrust; ... Customers are confident when they buy Mercury®. An investment in unmatched quality, durability, and performance. Browse our engine test data to check out the numbers …, 1 Problem #1: Stiff Shifting. 2 Problem#2: Grinding Noise. 3 Problem #3: Difficult to Engage Gear. 4 Problem #4: Gear Slipping. 5 Problem #5: Neutral Gear Issue. 6 Problem #6: Delayed or Slow Shifting. 7 Problem #7: Gear Shift Lever Not Staying in Place. 8 Conclusion., Check to make sure that the shifter is not in forward or reverse. 4. Fuel Problems. If the engine turns over or cranks like it always has, then chances are you are looking at a fuel problem. Always start troubleshooting with the simplest items first. Check the fuel system step by step, from the tank to the motor., Jun 30, 2011 · Here are some tips for trouble-shooting a two-stroke outboard motor: First, check that the boat battery is connected. To confirm, turn the ignition key to “on” before revving the engine and see that the electrical system is online. Put the boat in neutral and then shift to a different gear position. Shift back to neutral to make sure the ... , Hey guys! I have a fairly straight forward diagnosing process for diagnosing the no spark on these switch box years of Mercury. They seem to be one of the mo..., Jul 8, 2020 · Here's a quick list of parts that have been replaced on the powerhead within the last 4 months leading up to the first sign of trouble for either regular maintenance or repair: - Spark plugs. - Fuel pump rebuild. - Fuel filter. - fuel tank connector. - All fuel hoses and clamps. , Mainly because most results bring up propeller issues. 1996 Mercury 2 stroke 50hp 3cyl serial# 0G346628. I'll start from when the problem occurred. I was out on the bay (around weedon island in FL), going full speed (around 32mph) on my scout 155 sportfish. Hit some shallow area which caused my motor to lift a bit. The trim stopped working., Jun 30, 2022 · When using an external tank with your Mercury 2-stroke or 4-stroke outboards, be certain that the vent is kept open. If closed, the vacuum created will restrict the fuel flow replaced into the tank. Needless to say, clogged vents may also cause the same issue and you need to get it cleaned up. , Get your toilet flushing again with our troubleshooting guide. From easy solutions to complex problems, we've got you covered. Expert Advice On Improving Your Home Videos Latest Vi..., Aug 4, 2010. Messages. 4. Aug 4, 2010. #1. I have a 2000 Mercury 40 HP 2 stroke (says Tracker on the cover) on a 18ft suntracker pb. I just got the boat and had it out about 4 times in the last 10 days. Ran great. Went to go out on Monday after a bad day at work and it …, The 1:100 ratio of fuel mix is a ratio of one part TCW-3 outboard engine oil to every 100 parts of fuel. This ensures that the crankcase bearings, piston rings and all other moving..., Outboard. Verado® (250-600hp) 350-400hp; 250-300hp; 600hp; FourStroke (2.5-300hp) 250-300hp; Fourstroke 90-115hp Command Thrust; Fourstroke 9.9-60hp Command Thrust; ... Customers are confident when they buy Mercury®. An investment in unmatched quality, durability, and performance. Browse our engine test data to check out the numbers …, Download a digital copy of a Mercury 90 horsepower two-stroke and four-stroke outboard service manual directly to your computer, tablet or smartphone in seconds. The 90 hp Mercury manual covers every aspect of maintenance, service, troubleshooting and repair. Imagine for a moment that you have found the absolute perfect fishing hole in […], This Mercury 4 stroke was running rough. it would stall and bog while trying to get underway. Quick diagnosis showed the problem and was a simple fix., Apr 14, 2019 · MERCURY 2 STROKE OUTBOARD POOR IDLE TROUBLESHOOTING WITH SIMPLE SOLUTION. Here is a seldom talked about solution to an outboard engine that is hard to start and idles poorly. I am not a...