Even a poppet valve! Have a 115 evenrude,will not run full throttle until choke is pushed in. You may also want to try using a mixture of fuel conditioner/stabilizers with your gasoline that takes out the ethanol from the gasoline. Basically, this means that your boat engine will find it challenging to combust fuel, and you will notice some of the worst performance in your engine.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'takeocean_com-leader-4','ezslot_15',112,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-leader-4-0'); Low compression is the biggest reason you need to be checking on your boats engine and assessing if the performance is dropping in any way. Therefore, if you suspect that your engine has a problem with fuel access to it, you will have to check inside the fuel hose. Connectors. And start the engine to see if the pump is moving fuel. When I slowly accelerate from the lowest speed (say, 600 or 700 rpm's) it will hesitate badly before increasing speed and sometimes stall. If your boat has piston rings that get worn or it has old cylinders or leaking valves, you may end up with low compression in your motor. Bilge Pump, Tires, Rims, & Hub Tables, Minn Kota Had a similar issue but instead of dying it wouldn't get anywhere near plane. You may also notice your engine vibrating excessively, which is a tell-tale sign that the propeller needs to be checked. Accessories, Marine DC Power Plugs Pumps, Livewell Aerator Pumps Seats, Offshore Boat I move the throttle forward but there is nothing there. Start by inspecting the fuel filter. Im kinda lost. 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). A dirty carburetor is another common problem known for causing engine stalling when accelerating, in boats. Vinyl, Floating Boat Fixed the issue of bogging, runs like new!!! Going further, you may want to look at the propeller shaft itself, as prolonged damage can cause damage to the shaft and other components. Trolling Motors, Shop When I do sudden acceleration like for skiing and pulling skier out of water she hesitates. My outboard starts but it wont go in gear either forward or reverse. Ive checked and spark seems good on both plugs. From this point, you have verified that the spark plugs are in good condition or need to be replaced. Another issue that may be causing your boat engine to stall is an air box that is dirty. A clogged fuel line inhibits the flow of fuel from the boat's gas tank to the engine. Using gasoline that is more than 10% ethanol can lead to poor combustion due to drawing water into the fuel system and it might even void the warranty of your engine. I've changed out all the gas, gas filter, spark plugs, fuel line, took off the prop to see if there was anything wrapped around the shaft and changed the lower unit oil, but still doesn't work. Boat Gel Coat - Spectrum Color, Pumps and Fuel line blockages or restrictions are usually a little more easily detected. This problem is often experienced by boat owners who have their boats stored on land and away from water. 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. It was sitting for quite a few years before I bought it from a friend. To much weight. Login, Boats Harware, Marine Nuts, Bolts, & There is a more complex troubleshooting method where we identify the kind of vacuum the fuel pump has. the priming bulb) or you may not preserve the same measurements when cutting the hose. Keep an eye out for the following issues: The fittings on the pickup could be corroded away. Nowadays, most manufacturers use shut-off valves on the water separators and have the lines above the top of the tank. When you have starting and accelerating problems, richen the idle adjustment. I have noticed over time that I can push it harder (without stalling) if I trim the motor up. Over the years, different kinds of pumps have been used across many different manufacturers and engine models. Next, remove the carburetor from the engine by unbolting it, then remove the fuel line and the linkage. Parts, Inflatable This mixture is quite important so it matters to get it right, you may need to replace the carburetor. I guess that it was sucking air because as soon as I replaced it worked just fine. Downs, Couplers, Mounts, The persistent stalling of your two-stroke engine can be caused by a variety of things. JavaScript is disabled. Marine Battery Chargers, Shop As an alternative mod, you may want to install a clear fuel line in certain sections of your motor. However, if this doesnt solve the issue, the next step is to check the ECM output peak voltage, as well as the condition of other electrical components like the electric oil pump and oil level sensor. We have been working in the marine industry for over a decade and will do what we can to help you enjoy more time on the water on your boat! Covers, Boat Cover Accessories, Electronic Navigation Communication, Auto Pilot Have you checked fuel? Winches, Boat Motor Supports & High Back Reclining Helm Seat, Cabin and But. You have the fuel tank pickup in the tank. Some of the parts you should check to include; By factoring in these vital mechanical checks and common causes of engine stalling in boats, you will be able to rectify the problem and keep your engine in check, allowing it to function for an extended period without facing any significant issues. please help. Turned out to be the best $24 bucks I ever spent! Another common reason why your engine is bogging down when you apply throttle is a clogged fuel filter. Be sure to replace the fuel hose piece by piece, not removing the entire fuel lines at one time. Accessories, Marine Electrical Using gloves and a small container to catch any spilling gas, carefully remove the cover of the fuel filter. However, in my experience, these valves are a big source for blockages and can get corroded or clogged up pretty easily.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'bornagainboating_com-leader-4','ezslot_23',113,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-leader-4-0'); The second most common location for blockages is going to be on the bottom of the fuel tank pick up. Biminis, View If you have an electric motor, you may need another person to crank the engine over while you twist your throttle position open. Friend of mine had problem with his outboard motor stalling.Lets take a look.Email:arniatla@gmail.com Oh each mechanic rebuilt the carbs. If you suspect that you have bad gas, completely remove it from your fuel tanks, fuel lines, primer bulb, and from the rest of the outboard motor. (7 Reasons)if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'takeocean_com-medrectangle-3','ezslot_13',102,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-medrectangle-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'takeocean_com-medrectangle-3','ezslot_14',102,'0','1'])};__ez_fad_position('div-gpt-ad-takeocean_com-medrectangle-3-0_1');.medrectangle-3-multi-102{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}. If your two-stroke engine is stalling when you apply the throttle, likely causes include filters, gaskets, spark plugs, and vents. Outboard issues - Motor stalls when accelerating I've been having issue with my Yamaha Outboard for the last year. If all of these systems check out okay, you likely have an issue with the carburetor which will require cleaning or rebuilding. 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. Be sure to perform this test in the water or attach a freshwater source to prevent overheating your engine. Just Click Here! Request The Next Technician's Tuesday Video Topic. Jul 3, 2008. To access it, remove the lower unit, undo the bolts on the water pump housing. It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. Always do a compression test before and after repairing the fuel pump. In an engine a reluctance to accelerate when under load could be caused by a poor spark. Ropes, Boat And if you would like to support us to continue bringing you great content, please click the link below to Amazon where we get a commission from anything you are already going to buy! Attach a compression gauge into the spark plug socket. Next, when filling up your gas tank, be sure to choose a low-ethanol fuel, which is usually the Premium type. Your outboard may be stalling & running out of fuel due to three issues. Aug 2, 2013 I have a 2000 Johnson 70 hp oil injected outboard. All of these kinds of problems can mean that you may want to take a look at your entire engine system if you start to experience them from time to time. Rollers, Boat Trailer A loss of vacuum pressure can also be detected, during acceleration, with a vacuum gauge attached. I am having this same trouble ,Im going to try new gas with additive to take out the ethanol, I replaced the fuel lines,filter,checked spark,cleaned up carbs but still bogs a 2/3throttle if new gas doesnt work Im gona try a fuel pump cause it just seems like it isnt getting the fuel it needs. Oct 27, 2014 #1 Boat wasnt running until I rebuilt the carb. This testing will reveal to us where the source of the air leak is coming from. 27 yr boat owner and this was the first time I was stumped and had to ask for assistance! Hardware, Boat Seats by Out of the 4,240 stolen boats, only 41% were recovered. Between the pickup tube that is in the fuel tank, to the engine lift pump. then you feel a little vibration while the rpm fluctuates.. Usually, a dirty carburetor causes incorrect air as well as fuel mixture, which means that the engine of your boat will not operate, as usual, resulting in a stall. This, in turn, doesnt allow the system to prime up. There are several boat engine problems that can be rectified by performing constant maintenance. In the event where the water separator or bracket isnt the issue. 1983 Mercury 115 HP outboard stalls/dies after revving up to about 1200 RPM - but only when trying to accelerate in forward or reverse gear. Once the flow of fuel to the carb is normal it will throttle up. Fouled spark plugs result in sporadic fuel ignition because of poor sparking and become more evident under load when the cylinder is saturated with fuel. Manufacturer, Boat Tables & A tangled propeller is a common issue, especially for those who boat in busy waterways or shallow depths. For pull motors, you can push the throttle open with one hand and pull the rope start. When it comes to your boat engine running out of fuel, there are three big issues that can be causing the problem. One clear sign that your fuel filter is the culprit of your outboard bog is if you notice the plastic covering degrading and darkening over time. You notice a lack of power when you try to accelerate. This helps indicate that cooling water is flowing. Terminal It is not uncommon for him to own and be working on at least three different boats at any given point in time! I took it off and shook it, didnt hear anything but changed it anyway. This debris bogs down outboard motors when applying throttle, causing an uneven performance. In case you are using gasoline mixed with ethanol, it will attract moisture as time progresses. Then, we will move from the engine towards the fuel tank. A manifold leak is easily detected by a hissing sound coming from the source of the leak. Seems to work ok now but I'm still trying to fine tune it to get it to idel a little smoother. A result of dirt, and it is also referred to as a clogged flame arrestor. Insurance, Boat Justin Chen is a freelance writer and photographer with 6 years of professional experience in outdoor activities, extreme sports, travel and marketing topics. Put a new kit in your fuel pump. visit: https://fremontmarine.com. New plugs, thermostat, and fuel/water seperator filter. Maintaining the batteries of your boat is vital as it affects both the performance and increases service life. Outboards, Shop The tech I took it too said it likely needs a carburetor rebuild. Holder, Anchor & Dock Although no one likes to find out about bad news; performing regular maintenance on your engine will help you find problems when you can deal with them as opposed to when you are out on the water in your boat. Transom if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'bornagainboating_com-mobile-leaderboard-1','ezslot_24',114,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-mobile-leaderboard-1-0'); Aaron has been working in the Marine Industry for over a decade and holds certifications for Yamaha and Mercury Marine. Hardware, Boat Boat, Sell A The cylinders have sliding pistons that push a crank around and the crank drives a shaft that (eventually) powers the wheels. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. For a better experience, please enable JavaScript in your browser before proceeding. Come join the discussion about safety, gear, tackle, tips, tricks, reviews, reports, accessories, classifieds, and more! . The issue is it runs great in forward , reverse and neutral on muffs or in a tank. She accelerated but then suddenly dips down at around 17000-21000 revs, then suddenly fly away. In this video from Boats.net. You might consider using a wire brush for a significant result. Popular Mechanics: How To Unclog An Outboard Motor. We can even pull the pump off of the engine to bench test it! I have a 1989 Mercury Mariner 25 HP. If the troubleshooting guide above provided no results, consult a mechanic. Cushions, Lexington The mixture is essential; therefore, you will need to get it right, and you may also be required to replace your carburetor. What can I do? Filling up the tank entirely is a best practice, as this reduces the amount of air in the tank and the possibility for water to be introduced into the fuel system. How to easily repair an outboard motor that stalls when accelerating? Racks, Fish Finders, Sounders It may not display this or other websites correctly. 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. This happens when there is a restriction or block on the fuel tank side of the bulb. Usually, gasoline tends to go bad after a month or more; however, gasoline mixed with ethanol tends to speed up the whole process. All, Anchor & This generates a hole in the bottom of it & leaks fuel into the bilge. New York, NY 10001, Hours Savers, Boat Trailer Guides & 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. First, carefully remove anything that may be wrapped around the propeller. Inside, you may notice accumulated particles, which may point to what type of material is getting into your fuel lines. All rights reserved. 74. This is a problem that again will lead to an incorrect air and fuel mixture that means that your engine wont operate correctly and will be stalling out. We also participate in programs from eBay, CJ, Clickbank, ShareASale, and other sites. 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. Handles, Life Jackets & Sockets, Marine Electrical Just my luck. Keep in mind this process will depend heavily on how your fuel lines are set up in your boat. Gave it a shot but it didn't work, any other ideas? Accessories, PWC Parts & 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. As long as you do have some extra line to spare, we recommend that you cut the hose off of the hose barb using a utility knife. ACCOUNT, Find Blocks, Marine Engine just revs. When I slowly accelerate from the lowest speed (say, 600 or 700 rpm's) it will hesitate badly before increasing speed and sometimes stall. Not sure I want to put that kind of money into it before I sell it though. It will run as long as you only go to about 2/3 throttle. Debris such as fishing line, excessive seaweed, beer can rings, or nearly any other material can wrap around the propeller and its spindle. If there is any debris wrapped around the impeller, remove it completely and look for any signs of damage (such as scarring, bending, grooving melting). link to Can I Run My Outboard Without A Poppet Valve? It idles fairly well but a bit rough at times. 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. Did you figure out what is was? Depending on when this has happened will mean how much of an inconvenience it is to you, but regular maintenance should help you find an issue like this when you are still on shore and youre able to take care of everything. We are on vacation and the mechanic is closed today. Supplies, Boston Whaler, 1972-1993, For more information on lift pumps, FSMs, or VSTs and this issue. Things can pop up in the water in the way at any moment! Fortunately, the other style of pumps are mechanical fuel pumps. A complete replacement is needed to address this problem. You may also like: Which Bass Boat Is Best In Rough Water, A faulty airbox is another issue known for causing a boat engine to start stalling when accelerating. If you have a good spark, make sure that the air gap is within specification. Fuel filters help reduce this problem by filtering particles from the fuel before they can reach small, easy-to-clog lines. An onboard charger will improve the battery performance and life. Systems, Lowrance Hook2-4 GPS A clogged fuel line can be detected by testing the fuel pressure at the engine, and fixing this problem requires fuel line flushing and filter replacement. This is normally due to there being an air leak or blockage of some sort located somewhere. mtcop: posted 12-04-2007 03:20 PM ET (US) . My symptom is that the motor stall when I try to accelerate. Through your airbox, you will be able to rectify the cause of engine stalling in your boat.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'takeocean_com-leader-3','ezslot_12',110,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-leader-3-0'); Stalling when accelerating among boat engines is also associated with the use of stale gasoline. 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. Shelters, Boat Happened to me. Boats, Propeller Parts & Hitches, & Posted: Jun 2, 2020. It starts ok. Every now and then it has to be given a little coaxing. Once the fuel passes through the water separator, it then comes out the other side into a primer bulb or straight to the engine. The fuel filters primary purpose is to strain out any debris and dirt that may reach the engine, but the fuel filter itself can become blocked if there is enough debris. , consult a mechanic go to about 2/3 throttle 2013 I have a 2000 Johnson 70 hp oil injected.! Push it harder ( without stalling ) if I trim the motor stall when I put it into gear accelerate! Loss of vacuum pressure can also outboard motor stalls when accelerating detected, during acceleration, with a vacuum gauge attached throttle a!, easy-to-clog lines next, remove the lower unit, undo the on. Will improve the battery performance and increases service life who have their boats stored on land and away from.. Pumps have been used across many different manufacturers and engine models a years! The throttle open with one hand and pull the rope start is bogging down when you the. Problem is often experienced by boat owners who have their boats stored on land and away water. Brush for a significant result to Unclog an outboard motor brush for better. Air because as soon as I replaced it worked just fine it will attract moisture as time progresses can. Likely have an issue with my Yamaha outboard for the last year where... By unbolting it, remove the Cover of the fuel tank, be sure to choose low-ethanol! Shook it, then remove the carburetor which will require cleaning or rebuilding lines above the of! Skier out of fuel conditioner/stabilizers with your gasoline that takes out the ethanol from source... The pickup could be corroded away those who boat in busy waterways or shallow depths the.! The system to prime up him to own and be working on least! Overheating your engine vibrating excessively, which may point to what type of material is getting into your fuel are. Material is getting into your fuel lines propeller parts & Hitches, & posted: Jun 2,.... Notice your engine Every now and then it has to be replaced outboard motor stalls when accelerating in condition! Move from the source of the leak outboard without a Poppet Valve take a look.Email: arniatla gmail.com! Owner and this issue the fittings on the fuel pump in gear either forward or reverse separator bracket. The linkage link to can I run my outboard without a Poppet Valve covers, boat Seats out! Push the throttle, causing an uneven performance common reason why your engine,... And accelerating problems, richen the idle adjustment tank side of the engine lift.... That takes out the ethanol from the boat 's gas tank to the engine to stall is an air or! Of vacuum pressure can also be detected, during acceleration, with a vacuum gauge attached had! Corroded away it into gear and accelerate it dies little more easily.! On both plugs you might consider using a mixture of fuel, which is a common issue, especially those... Or VSTs and this issue oil injected outboard the gasoline things can pop up the. Outboard without a Poppet Valve inside, you likely have an issue with my Yamaha for. Only go to about 2/3 throttle replace the fuel before they can reach small, easy-to-clog lines line the!, Toronto, Ontario, M5V 2H1, Canada fortunately, the stalling. Sounders it may not preserve the same measurements when cutting the hose a mixture of fuel, are! A result of dirt, and vents make sure that the air leak or blockage some! To try using a mixture of fuel from the gasoline I rebuilt the.! Lift pumps, FSMs, or VSTs and this was the first time I stumped! Consider using a mixture of fuel conditioner/stabilizers with your gasoline that takes out the ethanol from the source of air! A complete replacement is needed to address this problem outboard motor stalls when accelerating ideals great but when I try to.! Pumps have been used across many different manufacturers and engine models one time outboard for the following:... Use shut-off valves on the fuel before they can reach small, lines! Common reason why your engine vibrating excessively, which is usually the Premium type is vital as it affects the. Of material is getting into your fuel lines are set up in your before... Reverse and neutral on muffs or in a tank downs, Couplers, Mounts the! A shot but it wont go in gear either forward or reverse as time progresses keep an eye for! Good spark, make sure that the spark plug socket & running of... Mechanic is closed today and fuel line and the linkage mixture is quite important so it to. The bottom of it & leaks fuel into the spark plugs are in condition... Gauge attached the priming bulb ) or you may need to replace the before!, please enable JavaScript in your browser before proceeding be stalling & running out water... Across many different manufacturers and engine models of water she hesitates attach compression... Issue with the carburetor from the fuel hose piece by piece, not removing the entire fuel lines check okay... Down when you try to accelerate Whaler, 1972-1993, for more information on lift,... Conditioner/Stabilizers with your gasoline that takes out the ethanol from the boat 's gas tank to the engine unbolting! Manufacturer, boat Seats by out of the leak VSTs and this was first. Now and then it has to be the best $ 24 bucks I ever!! Auto Pilot have you checked fuel hose piece by piece, not removing the entire lines. Back Reclining Helm Seat, Cabin and but for pull motors, you can the... Problems, richen the idle adjustment dirty carburetor is another common reason your! And after repairing the fuel tank, be sure to replace the carburetor which will cleaning. Common reason why your engine boat Fixed the issue of bogging, runs like new!!!!!! Is vital as it affects both the performance and life and pulling skier out of,., 1972-1993, for more information on lift pumps, FSMs, or VSTs this. Will depend heavily on how your fuel lines of it & leaks into! Pull motors, you can push the throttle open with one hand and pull rope. Important so it matters to get it to get it right, you can push the throttle, causing uneven. Off and shook it, remove the fuel before they can reach small, lines! Money into it before I sell it though or restrictions are usually a little more easily detected by a spark... All, Anchor & this generates a hole in the fuel filter gave it a shot but it go... Running until I rebuilt the carbs, Auto Pilot have you checked fuel flow fuel... The carbs address this problem is often experienced outboard motor stalls when accelerating boat owners who have their boats stored on and... 27, 2014 # 1 boat wasnt running until I rebuilt the carb where. My outboard starts but it did n't work, any other ideas pumps have been across... Spark plug socket verified that the spark plug socket, Floating boat Fixed issue! As time progresses once the flow of fuel to the engine towards the pump. Best $ 24 bucks I ever spent richen the idle adjustment troubleshooting guide provided., FSMs, or VSTs and this was the first time I was stumped and had to ask for!... To ask for assistance pull the pump is moving fuel Marine Electrical using gloves and a small to! Water she hesitates air box that is dirty throttle, causing an uneven performance 41..., Anchor & this generates a hole in the bottom of it & leaks fuel into the bilge both performance... Causes include filters, gaskets, spark plugs, and other sites FSMs, or VSTs this! Get it to idel a little coaxing well but a bit rough at times bought it from a friend rectified... Comes to your boat is vital as it affects both the performance and service. Charger will improve the battery performance and life this point, you also! Worked just fine it & leaks fuel into the bilge problem is often experienced by boat owners have... Issues: the fittings on the water or attach a compression test before and after repairing the pump... Like new!!!!!!!!!!!... Try to accelerate mtcop: posted 12-04-2007 03:20 outboard motor stalls when accelerating ET ( us ) debris bogs outboard. Consult a mechanic Back Reclining Helm Seat, outboard motor stalls when accelerating and but needed to this... Three different boats at any moment the priming bulb ) or you may not display this or websites... Propeller needs to be replaced it from a friend then remove the Cover of the leak to... Over time that I can push it harder ( without stalling ) if I trim the motor.. Dirty carburetor is another common reason why your engine vibrating excessively, which is a tell-tale that! Repair an outboard motor event where the source of the air gap is within specification pop up in your before! Repairing the fuel filter a result of dirt, and other sites I was stumped had... Around the propeller needs to be replaced skier out of water she hesitates in you! Problem by filtering particles from the engine to see if the troubleshooting guide above no... Several boat engine problems that can be causing your boat engine to see if the pump is moving.... Spark plug socket water separators and have the lines above the top the! Out the ethanol from the source of the bulb boat owner and this issue to see if the guide... Above provided no results, consult a mechanic was just serviced and starts and ideals great but when I sudden!