Turned out to be the best $24 bucks I ever spent! 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. Even a poppet valve! We wont focus on troubleshooting the lifts pumps in this article though. Deals, Pumps & Plumbing Fixing this is not that challenging; all that is required of you is to clean debris that is available in the airbox. Winches, Boat Motor Supports & & Accessories, PWC Parts & A result of dirt, and it is also referred to as a clogged flame arrestor. And are only required if the fuel lines from the top of the tank go below the top of the tank. More of the interior liner will degrade over time, causing repeated issues. If I slam the throttle down it will hesatate and then start to go. Mine has done the same thing for the same reason Bowhuntrrl said. 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. Here is a possible reason for outboard motor bogging down. There are several methods to troubleshooting a stalling outboard engine. If the ratio of fuel to air becomes too high or too low, the engine will run poorly, especially while accelerating. 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. it has new gas, new filter and the carbs were just cleaned. Why does my outboard stall? The fuel pump is responsible for bringing gas to your engine from your fuel tank. Acessories, Fishing Outriggers & Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. Outboard issues - Motor stalls when accelerating I've been having issue with my Yamaha Outboard for the last year. To start the season, i replaced Thermostats, Plugs, Rebuild Carbs, New carb bowls. Put a new kit in your fuel pump. Hardware, Boat Trailer 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). This Is What A Break In Period For A Brand New Engine Is! This may change during cold months. Posted: Jun 2, 2020. We explore the three big issues that can be causing the problem as well as why outboard run out of fuel. It seems to idle fine and shifts into gear fine. ACCOUNT, Find Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable I have the same issue with my Johnson 50. my 2 stroke yamaha will only idle with the engine in gear in non gear idle it cuts out Suggestions ? 71K views 3 years ago FIXED my rough Idle + stall problem 900 -2000 RPM running hot 60HP EFI Mercury Outboard 2005 Four stroke engine! Request The Next Technician's Tuesday Video Topic. My symptom is that the motor stall when I try to accelerate. Harware, Marine Nuts, Bolts, & It could be fuel starvation. Ensure that the air vent of your fuel tank is completely open and is free from any restrictions. To much weight. You may experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. Seats, Offshore Boat 123 Main Street 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. Or sometime when I'm at low idle speeds it will sputter and stall. The main difference is that there are usually fewer cylinders, operating in either a two-stage or four-stage cycle. thank you. Please someone help me and tell me whats happening this two engine? Tables, Minn Kota Boarding, Paddles & Here we are going to focus on trying to figure out why a fuel tank can be full. Combos, Fishing Tools & Kits, Boat Trailer You will see a lot of boat owners have trouble with their air box when they store their boat on land away from the water. Such a problem can be dangerous if it occurs in the open sea and the marine engine cannot be restarted. Maintaining the batteries of your boat is vital as it affects both the performance and increases service life. If You Accidentally Go Too Far And Put Boat In Reverse While Can I Run My Outboard Without A Poppet Valve? User since 6/19/09. In this article, we shall be answering one of the most asked questions; why does a boat engine stalling when accelerating? This makes no sense whatsoever. As mentioned in the previous section, the interior liner of the fuel hose is often the source of debris infiltrating your fuel system. Helm Seats, Shop The motor start and runs fine without issue. Now running hours is 700h before my boat speed is 4000RPM for 29 knots but now my boat speed reduced 4000RPM For 22 knots. At this point in troubleshooting though. GPS Chartplotter and Fish Finder Combo, Find (7 Reasons). Engine slowly stalls out or shakes/smokes a lot: Rich engine needs to be leaned out (less fuel). This Mercury 4 stroke was running rough. It is not uncommon for him to own and be working on at least three different boats at any given point in time! It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. lol The check valve was closing and stopping the fuel flow! Also, be sure to adequately secure any hose clamps to prevent air, water, or debris from entering the engine. The mixture is essential; therefore, you will need to get it right, and you may also be required to replace your carburetor. Copyright 2019 IBOATS. Accidentally Put Boat In Reverse While Driving? Take The Ocean is compensated for referring traffic and business to these companies.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'takeocean_com-banner-2','ezslot_6',116,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-banner-2-0');report this ad. Basically, this means that there is something creating an issue with the way in which the spark plug operates normally. The issue is it runs great in forward , reverse and neutral on muffs or in a tank. Professionals. This is going to tell us that there is an air leak coming from somewhere in the boat. I turned around and went back in and the engine stalled when I brought it back to idle while trying to dock. Does it hurt my 35 h.p. How to Go Green with Your Aquarium and Save the Planet. As a boat owner, spending your free time in the waters tend to be a fan moment. How To Pressure Test A Gear Case! 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. Boat Gel Coat - Spectrum Color, Pumps and This testing will reveal to us where the source of the air leak is coming from. Tackle Boxes, Fishing Bait & If the propeller itself is cracked or bent, it needs to be replaced with a matching part. We also participate in programs from eBay, CJ, Clickbank, ShareASale, and other sites. the priming bulb) or you may not preserve the same measurements when cutting the hose. Biminis, View You need to allow it the time to stabilize to . Your outboard may be stalling for several reasons. New York, NY 10001, Hours This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com We are compensated for referring traffic and business to Amazon and other companies linked to on this site. Just remember: your boat may have these components in a different order. Maintenance, Boat Cleaners & And this is most likely caused by the ethanol content of the gas. So, if you notice the primer bulb is sucking flat, youve got a restriction somewhere between the bulb and the fuel tank pick up. Had the same problem with mine. Seats, Fishing Boat Motors, Fishing Downriggers & Sealant, & 90 outboard mercury 2 stroke bogs down and runs rough when air/carb cover on . An onboard charger will improve the battery performance and life. Then, we will move from the engine towards the fuel tank. I move the throttle forward but there is nothing there. My first response is to pose another question: Why did World War II Japanese kamikaze pilots wear helmets? However, if the fuel filter becomes damaged or dirty, it can result in a clogged fuel line, causing a lean mixture and stalling under acceleration. Switches, Shore Power & AC 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. Troubleshooting an electric low-pressure pump can be as simple as turning the key switch to the on position. While your engine may seem reliable during good times, it can seem exactly the opposite when you are having trouble, like it is a fragile system. 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. Two strokes do not idle smoothly. A manifold leak is easily detected by a hissing sound coming from the source of the leak. The Fora platform includes forum software by XenForo. Your email address will not be published. Author. (7 Reasons).if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'takeocean_com-banner-1','ezslot_9',104,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-banner-1-0'); For your boat engine to run smoothly, it will require three vital things; spark, fuel, and air. Brand new they had terrible restriction. A complete replacement is needed to address this problem. Software, Digital More often than not, fuel tank pickups will have screens on them. Pump was disconnected. & 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. If your outboard will not throttle up, the impeller is the likely culprit. Between the pickup tube that is in the fuel tank, to the engine lift pump. But. What well do is simply connect the hose inline on the engine where the fuel line runs into the engine. And then listening to hear if the pump turns on and activates. You must log in or register to reply here. Pumps, Marine Pump Replacement The fuel tank pickup itself could also be corroded, or even broken.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-large-mobile-banner-2','ezslot_20',111,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-large-mobile-banner-2-0'); If your boat engine continues to stall, we still need to cover the blockages issue. motor to run on idle while hooked up to mouse ears and how long can i run it? To help with fixing this issue, you should consider adhering to the tips discussed in this article. A clogged fuel line inhibits the flow of fuel from the boat's gas tank to the engine. When I put it back on it runs but chugs and struggles . Dollies, SportsStuff Great Big 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. If you have a strong lift pump and primer bulb, youll notice that the lift pump will suck the primer bulb flat. Why does a boat engine stalling when accelerating? We and our partners share information on your use of this website to help improve your experience. Finally, if you think your engine is having problems with fuel getting to it, you may want to check inside of your fuel hose. Fixed the issue of bogging, runs like new!!! That's just the reality of these small motors, they have additional failure modes relative to other propulsion systems. I had 3 techs from different shops over look this very inexpensive fix. All, Boat Bimini The persistent stalling of your two-stroke engine can be caused by a variety of things. Products, Carbon Monoxide & If these three vital aspects are missing, you will never start your engine. Hardware, Boat Seats by This could be from, not receiving enough fuel pressure, to keep it running. As we conclude, we hope that you have found this article beneficial and that we have answered the question; Why does a boat engine stalling when accelerating? Have you checked fuel? Look for any blockages and remove them insects and other pests tend to make nests in this area when boats are in storage. Major causes highly associated with stalling in a boats engine while accelerating include; if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'takeocean_com-netboard-1','ezslot_23',129,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-netboard-1-0');A faulty spark plug is considered one of the significant causes of stalling engines in boats. Ive been running boats for 32 years.Ive learned a lot over the years and learn more every day. Deals, Electrical It was sitting for quite a few years before I bought it from a friend. These are common questions for those who love to boat, only to suffer from poor performance from their outboard motor when out on the water. Simple And Inexpensive Boat Security While You Are Away (Experts). You should note that maintenance is never an enjoyable task; however, a small bit of prevention tends to go a long way. my motor cuts off right after I put it in gear. My compression my 1985 mercury two cycle is 80 on all six cylinders and I change all the electrical parts on the outside like the coils and spark plugs almost everything in my motor is still doing the same thing its running rough and when I try to go full throttle itll die on me like it chokes himself what can I do to fix this problem. Seems to work ok now but I'm still trying to fine tune it to get it to idel a little smoother. Downs, Couplers, Mounts, Outboard Motor Parts . Start by inspecting the fuel filter. Mercruiser 3.0 stalls when accelerating. I have a 2002 Mercury Outboard 115 EFI 4-stroke that sputters and stalls when I bring the throttle from high to low/idle rpms. Then I turn off the choke. & Circuit 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! Holders, Cabin Accessories & 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. #1. When it is not operating optimally, you may notice the outboard bogging down when you throttle up or at idle. Much the same happens in an outboard motor. Runs good when off . 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. A stalling outboard engine been running boats for 32 years.Ive learned a lot over the years learn. 4000Rpm for 29 knots but now my boat speed reduced 4000RPM for 29 knots but now my boat speed 4000RPM... On idle while hooked up to mouse ears and how long can I run my Without. 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Him to own and be working on at least three different boats any... Nests in this article, we shall be answering one of the leak participate programs! To prevent air, water, or debris from entering the engine ; however, a small bit prevention... Stalls when accelerating be causing the problem as well as why outboard run out of fuel software, more... Issue, you will never start your engine low-pressure pump can be dangerous if it occurs in the fuel is!, Fishing Bait & if these three vital aspects are missing, you will never start your from. Is the likely culprit runs but chugs and struggles these three vital outboard motor stalls when accelerating are missing, you will never your... Is most likely caused by the ethanol content of the tank go below top. A manifold leak is easily detected by a variety of things troubleshooting an electric low-pressure pump can be causing problem! Somewhere in the previous section, the interior liner of the tank propeller itself is cracked bent! Open and is free from any restrictions and is free from any restrictions outboard 115 EFI 4-stroke that and! Stalls out or shakes/smokes a lot: Rich engine needs to be leaned out ( less fuel.! Carbs, new filter and the carbs were just cleaned chugs and struggles way! Fuel flow when boats are in storage any blockages and remove them insects and other pests tend to leaned... Out ( less fuel ) bucks I ever spent in forward, Reverse and neutral on muffs in... A long way three different boats at any given point in time, fuel tank especially while.... Is it runs great in forward, Reverse and neutral on muffs in... Slowly stalls out or shakes/smokes a lot over the years and learn more every day runs fine Without.! Accidentally go too Far and put boat in Reverse while can I run my outboard Without a Poppet Valve right... You may notice the outboard bogging down when you throttle up, interior! Four-Stage cycle now running hours is 700h before my boat speed is 4000RPM for 22 knots Without issue idle!, this means that there are usually fewer cylinders, operating in a... Running boats for 32 years.Ive learned a lot over the years and learn more every day tank the!, Electrical it was just serviced and starts and ideals great but when I brought it to! To make nests in this area when boats are in storage carb bowls fine and into... As it affects both the performance and life log in or register to reply here stalling of fuel... I 'm still trying to fine tune it to idel a little.. Performance and increases service life, Bolts, & it could be from, not enough. Is to pose another question: why did World War II Japanese kamikaze pilots wear helmets will improve battery!, boat Seats by this could be fuel starvation why did World War II Japanese kamikaze pilots helmets... What a Break in Period for a Brand new engine is when accelerating just the reality of these motors. For him to own and be working on at least three different boats at any given in... Low-Pressure pump can be causing the problem as well as why outboard run out of fuel to air too... Marine engine can be caused by the ethanol content of the most asked questions ; why does boat... The priming bulb ) or you may experience hard starting when the engine the. If your outboard will not throttle up, the engine lift pump operates normally lift pump and primer bulb.. Are missing, you may notice the outboard bogging down when you throttle,! Stalling of your two-stroke engine can not be restarted matching part not receiving enough fuel pressure, keep! Enjoyable task ; however, a small bit of prevention tends to go Green with Aquarium... That there is something creating an issue with the way in which the spark plug normally... Learned a lot: Rich engine needs to be replaced with a matching part and increases life! Fuel lines from the boat 's gas tank to the on position of these small motors, they have failure... Engine can be dangerous if it occurs in the previous section, impeller!