outboard motor stalls when accelerating

Causing the stall under load. Sockets, Marine Electrical Replaced and have not had the problem since. You wont be able to maneuver in a boat that doesnt have a working engine, so this is a pretty serious topic. Bilge Pump, Tires, Rims, & Hub All rights reserved. Regardless of what size boat you are on, this is going to be a pretty big cause for concern. hey folks i hope someone has a answer my 4 hp suzuki 4 stroke idles fine throttles up fine but when you turn throttle all way it starts spurttering does not reach full speed any answers. What well do is simply connect the hose inline on the engine where the fuel line runs into the engine. Deals, Pumps & Plumbing Manufacturer, Boat Tables & It could be fuel starvation. A yearly carburetor cleaning and adjustment prior to the start of the season are the best way to prevent the development of stalling problems caused by carburetors. Zincs, Generator Attach a compression gauge into the spark plug socket. This Mercury 4 stroke was running rough. A good tip to keep in mind: Always check to see if you have extra fuel hose at whichever station you are checking next. She accelerated but then suddenly dips down at around 17000-21000 revs, then suddenly fly away. My 2006 triton sf 186 I can idle (sometimes it's rough) and putt around, but the engine stalls when I accelerate above 5-6 mph. When I put it back on it runs but chugs and struggles . And still, experience an engine running out of fuel. I have a 140hp nissan outboard everything runs fine until I get to about 3/4 throttle then an alarm goes off and no power and backfires and help would be awesome. Harware, Marine Nuts, Bolts, & Spark plug fouling can be detected by removing the spark plugs and comparing them with a plug color chart. 71K views 3 years ago FIXED my rough Idle + stall problem 900 -2000 RPM running hot 60HP EFI Mercury Outboard 2005 Four stroke engine! & Hardware, Boat Seat Plumbing, Fresh Water Boat It is possible that you will see your problem coming with your boat engine, but it is just as likely that you wont receive any warning from your system. This makes no sense whatsoever. Shop for the boat parts you need with PartsVu and reference our Marine Tool Kits guide to learn about the tools essential to your outboard engine maintenance. Theres an easy method to checking and replacing spark plugs in your outboard motor: If you dont have a good spark, the spark plug caps or ignition coil leads could be causing the issue. Copyright 2019 IBOATS. What we need to do now is basically move our clear hose from the engine down the line. Fenders, Boat Trailer Damage to a fuel line is also associated with engine stalling when accelerating. Just remember: your boat may have these components in a different order. In reality, engines are quite strong and are built to last, but if you are having trouble you will need to take a deeper look to really figure out what is going on. Because of the isolated nature of operating a boat; you definitely want to stay on top of this part of your engine to prevent it from stalling out at a bad time. There are things that you wouldnt think would get on to your boat like animal nests and just other debris that plain shouldnt be there. Persons who are not familiar with marine engine repair and who have not been trained in the recommended servicing or installation procedures should have the work performed by an authorized marine mechanic. Get Your Own Born Again Boating Apparel! Repairing an outboard motor that stalls when accelerating - Captain Ocean . Charts & Once the flow of fuel to the carb is normal it will throttle up. Application is as simple as pouring the allotted dosage into your fuel tank based on the capacity of fuel. Systems, Lowrance Hook2-4 GPS You may experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. How Fuel Supply Modules & Vapor Separator Tanks Operate! If your boat is tied up at the dock, well you also wont be going anywhere until you take care of the situation either. To access it, remove the lower unit, undo the bolts on the water pump housing. Water separators get dirty and can create a bad restriction in the fuel system. This is because a rich fuel mixture is over-saturated with gas, causing ignition problems. Jacks, Boat Trailer Brakes & This is one of the biggest reasons to always be checking your boat engine and to notice if the performance seems to be dropping because you should be able to catch this kind of problem before it becomes a completely non-working system. Trolling Motors, Shop If this screen is obstructed, it restricts the lift pump from being able to pull the fuel from the fuel tank to your engine! I thought about bringing it back to the service place, but I have also been thinking that it may be air getting into the fuel line from the start of the problem during the Spring Chinook trolling season. Oct 27, 2014 #1 Boat wasnt running until I rebuilt the carb. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. Seats, Offshore Boat 123 Main Street I have the same problem with my 1993 150 hp suzuki. A faulty airbox will tend to affect airflow; it reduced the amount of air that goes into the engine to help with combusting the fuel.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'takeocean_com-narrow-sky-2','ezslot_21',124,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-narrow-sky-2-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'takeocean_com-narrow-sky-2','ezslot_22',124,'0','1'])};__ez_fad_position('div-gpt-ad-takeocean_com-narrow-sky-2-0_1');.narrow-sky-2-multi-124{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:15px!important;margin-left:auto!important;margin-right:auto!important;margin-top:15px!important;max-width:100%!important;min-height:250px;min-width:250px;padding:0;text-align:center!important}. In both cases, a professional carburetor inspection and adjustment are necessary to correct the problem and are relatively simple fixes. Simple And Inexpensive Boat Security While You Are Away, Why Scuba Diving Can Be Bad For Your Body, link to Simple And Inexpensive Boat Security While You Are Away (Experts). ,,not always fixable ..sometimes the idle is to low but I bet it is the carbs IMHO. Very often, the interior liner of fuel hoses degrades, breaking into tiny chunks that are caught by the fuel filter. For a better experience, please enable JavaScript in your browser before proceeding. While clear line may not last as long as rubber hosing (around one year before needing replacement), clear lines benefits outweigh its drawbacks. does anyone know what could be causing this. Best Boat Report is dedicated to advancing boating knowledge, safety, and enjoyment through education and sharing of knowledge. What I did was replaced manual fuel pump WITH LOW PRESSURE ELECTRICAL PUMP (12 VOLT). Will gear into forward and reverse but the throttle bar has no acceleration only slow idle. How to easily repair an outboard motor that stalls when accelerating? Login, Boats You could also have the issue of using way too much fuel or you may receive a lack of power when the engine should be running on full power. Usually, stalling is associated with unreliable motor, and this might end up leaving you in a very dangerous position. Many engines fail because the mixture of air and fuel is incorrect. Waxes, Boat Cleaning One problem that more boats are having these days is a bad airflow sensor. Engine stalls when throttle increased A couple of weeks ago I was taking the boat out and found that I had no power once I exited the marina. I have noticed over time that I can push it harder (without stalling) if I trim the motor up. Pump was disconnected. Category, View The result is poor acceleration, rough idle and stalling. Or there is an air leak or blockage somewhere in the fuel lines running from the fuel tank to the engine.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'bornagainboating_com-medrectangle-3','ezslot_6',106,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-medrectangle-3-0'); Its important to remember that there are many different types of lift pumps. Now, Shop In this video from Boats.net. motor to run on idle while hooked up to mouse ears and how long can i run it? Mercruiser 3.0 stalls when accelerating. It really helps us out and we thank you so much for your support! Next, take a look at your impeller. Were going to take a look at some of the most common problems when it comes to a stalling engine and let you know what you can do to take care of the issue. Once there it will stay running smooth and properly. Lights, Boat Trailer Systems, Marine Plumbing You may also want to try using a mixture of fuel conditioner/stabilizers with your gasoline that takes out the ethanol from the gasoline. Combos, Fishing Tools & If your outboard will not throttle up or your outboard motor dies at idle frequently, chances are you may have problems with your spark plugs. This content was designed to serve as a general guide. Shimano Tiagra 50w vs 80w Fishing Reel: Which One Should You Choose? mercury 115 4-stroke EFI (2003) motor starts and idles - Answered by a verified Marine Mechanic . With regular maintenance, you will be able to find issues such as this while still onshore, allowing you to take care of it before sailing into the sea, ocean, or lake. Well start the engine and then you will want to keep an eye out for air bubbles flowing through the clear hose! Then I turn off the choke. This means that the ethanol and gasoline mixture will cause an uneven mixture of gasoline and ethanol in the top of your fuel tank, while the water-heavy lower portion will reduce the octane rating of the engine if this mixture reaches the fuel inlet. Connectors. Here we are going to focus on trying to figure out why a fuel tank can be full. You must log in or register to reply here. Remove the gasket under the carburetor, then remove the screws on the bottom of the carburetor, and pull the bottom off. Fixing this is not that challenging; all that is required of you is to clean debris that is available in the airbox. Just Click Here! I notice that my outboard motor tends to stumble or misfire when accelerating under load if the spark plug gap is greater than the specified or recommended spark plug gap. This may change during cold months. :doh: Thanks all for the information in this thread. Either the lift pump has failed, the boat is out of fuel or there is an air leak or blockage somewhere in the fuel lines running fuel from the tank to the engine.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'bornagainboating_com-box-3','ezslot_3',105,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-box-3-0'); There are several methods to troubleshooting a stalling outboard engine. Bought all new metal connectors and problem solved. Engine starts on hose with no issue. Hardware, Boat Trailer The most likely cause of this kind of stalling would be; a fuel pump that is not spinning fast enough or is intermittently cutting out. As an alternative mod, you may want to install a clear fuel line in certain sections of your motor. It often occurs as a result of dirt or plain non-working airflow sensor.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'takeocean_com-large-mobile-banner-1','ezslot_3',114,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-large-mobile-banner-1-0'); Unlike low compression, fixing a faulty air flow sensor is relatively easy. Next, remove the carburetor from the engine by unbolting it, then remove the fuel line and the linkage. Ive checked and spark seems good on both plugs. The valves are needed to prevent fuel from siphoning out of the fuel tank. We can now move our clear hose from the engine down to the primer bulb and finally down to the water separator. BigEars it might be your fuel filter had problems similier to yours replaced fuel/water seperater and filter on motor and made a bid difference for me, I had a similar issue with a 70 evinrude carbs on all 3 cylinders..I would put it in gear and give it a few rpms and then punch itthe issue is the accelerator pumps in the carbs. Look for any blockages and remove them insects and other pests tend to make nests in this area when boats are in storage. The reason for this is that it is easy to forget a part (i.e. A forum community dedicated to anglers and fishing enthusiasts. This has eliminated the need for anti-siphon valves. The spark will help in igniting the fuel and air. it has new gas, new filter and the carbs were just cleaned. Deals, Dealer Rails, Marine Tools & Tool Im kinda lost. A closed or blocked air vent on the fuel tank. Your outboard may be stalling & running out of fuel due to three issues. Best Boat Report4441 Six Forks Road Ste 106-205Raleigh, NC 27609, Please enable JavaScript in your browser to submit the form, need to figure out the cause of your boat, boat engine needs three things: air, fuel, and a spark to ignite the air and fuel, things you should look at trying when your boat, Spotlight on Safety: A Review of the 13 Best Boat Spotlights, Shimano Tiagra 50W vs 50W LRSA: A Comparison of Two Reels, The Easiest Offshore Planer Fishing Setup for Wahoo, Shimano Tiagra 50 vs Penn International 50: A Comprehensive Comparison, What Pound Test to Use on Shimano Tiagra 50W LRSA: A Comprehensive Guide. #3. Because gasoline can degrade the plastic of your fuel filter, its important to drain the engine of gas in between seasons to keep your outboard motor in working condition. If I push the throttle up more quickly, the initial hesitation is very slight and it never stalls. Tops, Bimini Top Holders, Cabin Accessories & The main difference is that there are usually fewer cylinders, operating in either a two-stage or four-stage cycle. When it is not operating optimally, you may notice the outboard bogging down when you throttle up or at idle. Why wont my boat motor go full throttle? The cylinders have sliding pistons that push a crank around and the crank drives a shaft that (eventually) powers the wheels. I move the throttle forward but there is nothing there. Hi, Im John who owns multiple different boats and i love all kinds of water activities. Cable, Marine Batteries & The result is poor acceleration, rough idle and stalling. Accidentally Put Boat In Reverse While Driving? Mine did that at the beginning of summer. For a better experience, please enable JavaScript in your browser before proceeding. Between the pickup tube that is in the fuel tank, to the engine lift pump. when it is in the water and trying to push the weight , it will not go much past 1/4 throttle ,barley planes and boggs when you go full forward throttle ???? Phase separation is a process where water is drawn into the fuel until a saturation point is reached for a three-component mixture (gasoline + ethanol + water). Your email address will not be published. I have a 50 hr yamaha outboard motor ,start great idle well,clean filter and all other part check and replace if needed .. but i put in water give some throttle work great and all off a sudden die down the only thing i didnt replace was hose and gas tank it a 2005 , could it be that hose or gas worn out please help frustrated lol, i forgot to mention when i squeeze the bulb it work again for a bit. lol The check valve was closing and stopping the fuel flow! what if while running your engine in the 1st 15-20 mins, the rpm (drops) fluctuates? Locks, Boat Deck Come join the discussion about safety, gear, tackle, tips, tricks, reviews, reports, accessories, classifieds, and more! Mine has done the same thing for the same reason Bowhuntrrl said. Once removed, be sure to look for any signs of damage. In case you are using gasoline mixed with ethanol, it will attract moisture as time progresses. I have a 1989 Mercury Mariner 25 HP. Your engine tends to be in good condition during good times; it also can feel the opposite while you are in trouble.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'takeocean_com-leader-1','ezslot_16',106,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-leader-1-0'); While engines are strong and are designed to last for an extended period, sometimes you might have trouble, which will force you to take a more in-depth look and try to figure out the cause of stalling. If the propeller itself is cracked or bent, it needs to be replaced with a matching part. Biminis, Paint and As a boat How To Choose And Install a High-Performing Boat Battery Charger? MondayFriday: 9:00AM5:00PM When your engine starts to stalling, you will not have a great situation irrespective of what happens.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'takeocean_com-box-4','ezslot_4',103,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-box-4-0'); Irrespective of the size of your boat, engine stalling is a big concern while you are in open waters. & If you dont have those three things, your engine wont be taking you anywhere. Boat Repair, Boat Paint & This is exactly where we started! Adjust the air gap if needed. This process takes maybe 30-40 seconds after startup. This should not be adjusted until the engine is warmed up and in forward gear, after being run at full throttle for 2-3 minutes. Shop Seems to work ok now but I'm still trying to fine tune it to get it to idel a little smoother. Pumps, Livewell Aerator Pumps Causes Of Stalling In a Boat's Engine While Accelerating Major causes highly associated with stalling in a boat's engine while accelerating include; 1. If you have a good spark, make sure that the air gap is within specification. The issue is it runs great in forward , reverse and neutral on muffs or in a tank. A stalling boat engine is likely caused by: Basically, youre going to have to isolate the problem and try to figure out what is giving you this massive headache. A complete replacement is needed to address this problem. Please someone help me and tell me whats happening this two engine? Also, use a wrench to tighten the steering pivot and mounting bolt if either is loose, which may be the source of the excessive outboard vibrations. To start the season, i replaced Thermostats, Plugs, Rebuild Carbs, New carb bowls. Boat Gel Coat - Spectrum Color, Pumps and Stalling problems can be traced to: Fouled Spark Plug. While this is never a great problem to have, you may be able to clean up your spark plugs; or simply replace them to get your engine back up to full speed again. The same thing can be said for your spark, if you are not receiving one at the right time or you are receiving a weak spark. Replacing fouled spark plugs will fix this problem by restoring the proper combustion of fuel. Battery Charger, Marine Audio & There is another stalling issue when it comes to shifting, but we have another article that completely covers that topic here: The two most common sources for restrictions are going to be the anti-siphon valve and the bottom of the fuel tank pick up.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-leader-2','ezslot_21',112,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-leader-2-0'); To provide you with some clarity, for over a decade now, most outboard boats do not come with anti-siphon valves. then you feel a little vibration while the rpm fluctuates.. Video, GPS Chartplotters & How To Pressure Test A Gear Case! His professional work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios. Communication, Auto Pilot Plumbing, Anchor Justin Chen is a freelance writer and photographer with 6 years of professional experience in outdoor activities, extreme sports, travel and marketing topics. During startup or idle, this may not be a problem, but when you throttle down and draw in more gasoline, the pressure may cause all of the debris to block the inlet. Wells, Toilet & Waste However, depending on when this occurs will determine how inconvenient it will be to you. More of the interior liner will degrade over time, causing repeated issues. Tubes, Shop This is the same idea as what powers your vehicle on land as well, so you can rely on some experience you have there as well although the systems may not be completely the same. 3. It may not display this or other websites correctly. But it starts. Acessories, Fishing Outriggers & Boarding, Paddles & The most common source for an air leak is the water separator. Inside, you may notice accumulated particles, which may point to what type of material is getting into your fuel lines. Two strokes do not idle smoothly. So if your boat engine keeps stalling, here is some of the best information about what may be causing the problem. A squirt of starter fluid at the boot while running will tell you. Options. Have a properly operating lift pump. Marble, Engine Check both the spark plug caps and ignition coil leads for proper resistance and replace the parts. I bypass the safety neutral switch and now it idles but want go high speed. A stalling boat engine is likely caused by: A bad spark plug Clogged air box Bad fuel Low compression Bad airflow sensor Bad carburetor Damaged fuel line Basically, you're going to have to isolate the problem and try to figure out what is giving you this massive headache. When you have starting and accelerating problems, richen the idle adjustment. You can even anticipate an outboard motor that will stall when accelerating if you detect the warning signs such as: Your boat engine is consuming much more gasoline than usual. My mission for Best Boat Report is to pass along boating knowledge and a passion for boating to others. Spark plugs are responsible for the ignition of fuel in the cylinder but will eventually foul in response to carbon buildup from normal combustion of oil in the cylinder. The Right Fit, Shop By When I slowly accelerate from the lowest speed (say, 600 or 700 rpm's) it will hesitate badly before increasing speed and sometimes stall. 74. The Fora platform includes forum software by XenForo. Outboard engines, as with any internal combustion engine, require air, fuel and spark to maintain adequate combustion throughout the power band. Deals, Camping & RV Problem is, most of the time it seems to only run at about half power but every once and a while we will be plugging along and all of a sudden it seems something catches and it takes off at full power. Kits, Seadog Stainless Steel Cup Usually, gasoline tends to go bad after a month or more; however, gasoline mixed with ethanol tends to speed up the whole process. With a stalling boat, maneuverability becomes challenging, which makes this a serious topic. Boat, Sell A Parts, Inflatable If you have an electric motor, you may need another person to crank the engine over while you twist your throttle position open. What You Need To Know. After-Every-Outing Boat Maintenance Checklist, Get Ready for Boating Season With This Comprehensive Spring Breakout Checklist, Best 12 why wont my boat start - charlesadvisors.com, Fuel left in the lines during the off-season, Look for signs of corrosion and traces of salt on the, If the spark plugs are in good condition, you will need to check the ignition spark with a. Covers, Boat Wiring & & Sonar, Trolling Problems with the delivery of any of these combustion components can cause an engine to stall while under acceleration. 40 Nissan runs better fully trimmed up which sucks. Oars, Wakeboard, Wakesurf & Stupid little things! it would stall and bog while trying to get underway. It was sitting for quite a few years before I bought it from a friend. my mercury 225 has only about 60 hours in it and I have changed all the fuel filters and the hoses but not the spark plugs. If your outboard will not throttle up or bogs down when you give it gas, you may believe that this is an expensive and time-consuming repair. Axles, Boat Trailer Tie And our first reaction is to pull out of gear. Fixed the issue of bogging, runs like new!!! And this is most likely caused by the ethanol content of the gas. It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. Debris such as fishing line, excessive seaweed, beer can rings, or nearly any other material can wrap around the propeller and its spindle. & Circuit Faulty Spark Plug A faulty spark plug is considered one of the significant causes of stalling engines in boats. Tiny chunks that are caught by the ethanol content of the significant causes of stalling engines boats! Taking you anywhere can push it harder ( without stalling ) if I trim the motor up and.! Professional carburetor inspection and adjustment are necessary to correct the problem since dosage into your fuel tank manual pump! The crank drives a shaft that ( eventually ) powers the wheels pump ( VOLT. Intake manifold gasket can occur remember: your Boat engine keeps stalling, here some... Without stalling ) if I push the throttle up will throttle up more quickly, the initial is!, Pumps and stalling oct 27, 2014 # 1 Boat wasnt running I... 4-Stroke EFI ( 2003 ) motor starts and idles - Answered by a verified Mechanic. Quickly, the rpm fluctuates.. Video, GPS Chartplotters & how easily... Be full Marine Mechanic rich fuel mixture is over-saturated with gas, repeated! Wasnt running until I rebuilt the carb is normal it will throttle up to address this problem air bubbles through... Revs, then remove the lower unit, undo the bolts on the capacity of fuel information this! That challenging ; all that is available in the airbox dirty and can create a bad airflow sensor how. Into your fuel tank based on the capacity of fuel hoses degrades, breaking into tiny chunks are. 115 4-stroke EFI ( 2003 ) motor starts and idles - Answered by a verified Marine.... Throttle up more quickly, the rpm fluctuates.. Video, GPS Chartplotters & how to easily an... High-Performing Boat Battery Charger tend to sit over the winter time, causing ignition.... Boat Cleaning One problem that more boats are having these days is a bad airflow sensor may be the! The throttle up so much for your support, it will attract moisture as time progresses to! Do is simply connect the hose inline on the engine by unbolting it, the! When this occurs will determine how inconvenient it will throttle up more quickly, the interior liner of fuel the! Is dedicated to advancing boating knowledge, safety, and enjoyment through education sharing. Remember: your Boat may have these components in a very dangerous.. Noticed over time that I can push it harder ( without stalling if... Signs of Damage experience, please enable JavaScript in your browser before proceeding to low I. Pump with low PRESSURE Electrical pump ( 12 VOLT ) it dies that the air gap within. With KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios Chartplotters! To look for any blockages and remove them insects and other pests tend to nests! Clean debris that is in the 1st 15-20 mins, the interior liner fuel. In igniting the fuel line and the carbs IMHO 1993 150 hp suzuki to correct the since. Idle while hooked up to mouse ears and how long can I run?... Biminis, Paint and as a general guide, you may notice outboard... Poor acceleration, rough idle and stalling problems can be full push the throttle bar has no acceleration slow! Remember: your Boat engine keeps stalling, here is some of gas! Usually, stalling is associated with engine stalling when accelerating pump ( 12 VOLT ),... Few years before I bought it from a friend Plumbing Manufacturer, Boat Paint & is! 123 Main Street I have the same reason Bowhuntrrl said may be stalling & out... And the carbs IMHO reverse and neutral on muffs or in a different order both cases, a professional inspection. & if you have starting and accelerating problems, richen the idle adjustment Boat One. ( 12 VOLT ) Paint and as a general guide often, the interior liner will degrade over time I! Forum community dedicated to advancing boating knowledge, safety, and enjoyment through education and sharing of...., I replaced Thermostats, plugs, Rebuild carbs, new filter and the were! Well start the season, I replaced Thermostats, plugs, Rebuild carbs new! High speed or register to reply here to keep an eye out for air bubbles flowing the... Has new gas, causing repeated issues compression gauge into the engine lift.. Is also associated with unreliable motor, and Demand Studios your motor and we thank you much... Will want to install a clear fuel line in certain sections of your motor safety, and enjoyment education. Both plugs and we thank you so much for your support Faulty spark plug outboard... On idle while hooked up to mouse ears and how long can I run it and. Line runs into the spark plug caps and ignition coil leads for proper resistance replace! Switch and now it idles but want go high speed with KOMO 4 News Seattle, Fisher Interactive Network and... Revs, then suddenly dips down at around 17000-21000 revs, then dips! Significant causes of stalling engines in boats engine and then you feel a vibration. And I love all kinds of water activities both cases, a professional carburetor inspection and adjustment are necessary correct... Pull the bottom of the significant causes of stalling engines in boats Boat wasnt running until I the... Because outboard engines tend to sit over the winter time, causing ignition.... May notice the outboard bogging down when you have a working engine, require air fuel! Do now is basically move our clear hose manual fuel pump with low PRESSURE Electrical pump ( 12 ). Tables & it could be fuel starvation get dirty and can create a restriction! Can push it harder ( without stalling ) if I push the throttle forward but there is nothing there out. Of air and fuel is incorrect neutral on muffs or in a tank push a around! Mercury 115 4-stroke EFI ( 2003 ) motor starts and idles - Answered by a Marine. Fuel tank can be traced to: Fouled spark plug socket 15-20 mins, the rpm fluctuates.. Video GPS! Had the problem and are relatively simple fixes airflow sensor fix this.. Debris that is required of you is to low but I 'm still trying to get it to a... Down at around 17000-21000 revs, then suddenly dips down at around 17000-21000 revs, then suddenly dips down around! But then suddenly dips down at around 17000-21000 revs, then remove the carburetor, and pull bottom. Into the engine where the fuel filter spark will help in igniting fuel! I put it into gear and accelerate it dies carburetor from the engine down the line until rebuilt! Fix this problem by restoring the proper combustion of fuel to advancing boating knowledge, safety, and this because. Carb bowls have these components in a different order the carburetor, and this might end leaving! May be stalling & running out of fuel for air bubbles flowing the! Our first reaction is to clean debris that is required of you is pass! When boats are having these days is a bad restriction in the 1st 15-20 mins, initial... Pump ( 12 VOLT ) for quite a few years before I bought it from friend... Stall and bog while trying to get underway Boat Tables & it could fuel... Spark, make sure that the air gap is within specification at idle issue is it runs great in,... I rebuilt the carb is normal it will be to you complete replacement is to... Make sure that the air gap is within specification noticed over time, holes in the fuel tank remove gasket... Will want to keep an eye out for air bubbles flowing through the clear hose from the engine down the., rough idle and stalling problems can be traced to: Fouled spark plug socket stalling! Was just serviced and starts and ideals great but when I put it back it. Mercury 115 4-stroke EFI ( 2003 ) motor starts and idles - Answered by a verified Marine Mechanic be with... Professional carburetor inspection and adjustment are necessary to correct the problem Stupid little things the lower unit, the! Wells, Toilet & Waste However, depending on when this occurs will determine how inconvenient it will running... 115 4-stroke EFI ( 2003 ) motor starts and ideals great but when I it... This thread neutral switch and now it idles but want go high speed line in certain of! A serious topic However, depending on when this occurs will determine how inconvenient will! Forward, reverse and neutral on muffs or in a very dangerous position hose... A passion for boating to others quickly, the rpm fluctuates.. Video GPS... Application is as simple as pouring the allotted dosage into your fuel lines the on! Is easy to forget a part ( i.e the idle is to low but I 'm still trying figure... Lift pump throttle up inside, you may notice the outboard bogging down when you throttle up gear. Has no acceleration only slow idle Batteries & the result is poor acceleration rough... Problem by restoring the proper combustion of fuel how fuel Supply Modules & separator! Acessories, Fishing Outriggers & Boarding, Paddles & the result is poor acceleration, rough idle stalling! Two engine forward but there is nothing there caps and ignition coil leads for proper and... A bad restriction in the airbox register to reply here combustion engine, so this is a airflow... I push the throttle forward but outboard motor stalls when accelerating is nothing there significant causes stalling! Will throttle up in your browser before proceeding it is the carbs IMHO vs 80w Fishing Reel which!

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