Normally the #1 LED does not illuminate unless the engine is running as that is notification of a charging or system voltage abnormality. We’ll start the engine and then you will want to keep an eye out for air bubbles flowing through the clear hose! boats.com, 1221 Brickell Avenue, 23rd Floor, Miami, FL 33131, USA. Nowadays, most manufacturers use shut-off valves on the water separators and have the lines above the top of the tank. Yet, this vital... Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! More specifically, engine starts out starting and running fine. In the event where the water separator or bracket isn’t the issue. Talk to other boaters and you will likely find out that many owners don't know the first thing about the water pump, let alone how to tell when they have a bad outboard water pump! In both cases, reliability is far better than it was in decades past, fuel efficiency has increased, and problems like smoky exhaust and ear-splitting sound levels are ancient history. Timing and synchronizing out of adjustment 10. 3hp sears gamefisher outboard won't stay running.? Most tiller size outboards have a little skeg under the cavitation plate that can be adjusted to counteract the torque from the prop. Fuel is in the float bowl. If you are getting fire to all cylinders and compression is good, more than likely the problem is the fuel. Request The Next Technician's Tuesday Video Topic. You got the boat packed with your gear and your best friends. The valves are needed to prevent fuel from siphoning out of the fuel tank. Hi, I have a 2002 3.5B2 3.5HP 2cycle that I purchased used last year. Clogged fuel filter or screens 6. Boat Engine Stalls When Accelerating. Why Does My Outboard Engine Stall When I Put It In Gear? Aaron has been working in the Marine Industry for over a decade and holds certifications for Yamaha and Mercury Marine. How To Pressure Test A Gear Case! Your outboard may be stalling for several reasons. And then listening to hear if the pump turns on and activates. Why boats break down, and how you can prevent boat problems from happening to you. I own one of these motors and to say that you have to fight the tiller to keep the boat running straight is an understatement. 1,521 Posts . If this screen is obstructed, it restricts the lift pump from being able to pull the fuel from the fuel tank to your engine! Honda outboard motors are among the finest on the market. 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.eval(ez_write_tag([[728,90],'bornagainboating_com-box-3','ezslot_10',105,'0','0'])); There are several methods to troubleshooting a stalling outboard engine. Meanwhile, encouraging you to take care of and enjoy working on your boat! If you have a strong lift pump and primer bulb, you’ll notice that the lift pump will suck the primer bulb flat. We can even pull the pump off of the engine to bench test it! The motor will start, but will not stay running, runs for about 5 seconds at most. This leads to the fuel tank selector switch (for boats that have more than one tank).eval(ez_write_tag([[336,280],'bornagainboating_com-banner-1','ezslot_14',109,'0','0'])); Or, if your boat doesn’t have a selector switch, it should lead to a fuel water separator. You turn it to "start" (the engine starts) and it returns to the "run" position which is dead (and the engine shuts off). Died the 3rd. A good tip to keep in mind: Always check to see if you have extra fuel hose at whichever “station” you are checking next. If your outboard is running rough but you’ve checked your fuel vent and it’s clear, disconnect the fuel line and give the outboard end of the connector a good examination. (Or low-pressure fuel pumps). Use the Yamaha outboard's starter. All rights reserved. Fuel lines kinked or severely pinched 4. The most common source for an air leak is the water separator. Step By Step! eval(ez_write_tag([[300,250],'bornagainboating_com-leader-4','ezslot_21',116,'0','0'])); And you can also donate by clicking the donate button here or on the right hand of the screen! All of our covers are proudly made in the USA. I changed the fuel lines and everything is good. Worked great for 2 outings. Yamaha F115 Outboard 2004 Not rated yet The engine won't restart after running for 45-60 minutes. Also , pulled the lower unit and the impeller doesn't look to be in that bad shape So, if you notice the primer bulb is sucking flat, you’ve got a restriction somewhere between the bulb and the fuel tank pick up. Either the engine randomly runs out of fuel and dies. If the fuse isn’t blown. 1. This is going to tell us that there is an air leak coming from somewhere in the boat. each. Mechanical fuel pumps are usually operated by either a diaphragm or crankcase pressure or an arm and a lobe on the camshaft. This is because most of the time, the hose will have shrunk onto the hose barb and pulling it off can be a hassle.eval(ez_write_tag([[300,250],'bornagainboating_com-leader-1','ezslot_16',110,'0','0'])); Cutting the tip-off of the connecting hose will make things easier for you! Get Your Own Born Again Boating Apparel! If your outboard has an external gas tank, there can be a number of problems between it and the motor. Updated: October 30, 2019. Miss January and February: Brittany P. Water Sports. Why does my outboard stall? Keep in mind this process will depend heavily on how your fuel lines are set up in your boat. Coming from the fuel line from the fuel tank. And they are a little easier to work with.eval(ez_write_tag([[336,280],'bornagainboating_com-medrectangle-4','ezslot_11',107,'0','0'])); For these pumps, you can simply pull the fuel hose off of the output side. With a garden hose supplying water to the lower unit it idled consistent without a problem. I am sorry to hear about your troubles with your outboard. Home Do-It-Yourself Outboard Repair Guides Mercury 9.9HP (9.9 HP) Won’t Start or Stalls After Starting November 22, 2016 Repair Manual Do-It-Yourself Outboard Repair Guides 5 There can be many reasons why a 9.9 horsepower Mercury outboard will not activate; e.g. Step 2 Check to see if … Start by checking the hydraulic fluid reservoir level. already checked fuel pumps and rebuilt them. We won’t focus on troubleshooting the lifts pumps in this article though. I got the Evinrude running. Cleaning the jets in a boat motor carb without removing the carb. Carburetor adjustments too lean (not allowing enough fuel to start engine) 9. More specifically, engine starts out starting and running fine. This happens when there is a restriction or block on the fuel tank side of the bulb. Cheap fuel lines, hose clamps, and connectors commonly cause problems with your outboard engine. This has eliminated the need for anti-siphon valves. Top 10 Choices for Boaters, Suzuki DF350A Twin Propeller Outboard Engine Introduced, Boost Speed with Outboard Engine Height Adjustments, Suzuki DF15A: Long Term Outboard Engine Test. Copyright © 1999-2021 Boats Group. After turning the engine off and letting it sit for a couple of minutes, you have to prime the primer bulb up again. This generates a hole in the bottom of it & leaks fuel into the bilge. Have a properly operating lift pump. Fortunately, the other style of pumps are mechanical fuel pumps. Lenny is a graduate of the Westlawn School of Yacht Design, and he has won numerous BWI and OWAA writing awards. Thanks for reading and we look forward to reading your responses and comments. The fuel tank pickup itself could also be corroded, or even broken.eval(ez_write_tag([[300,250],'bornagainboating_com-large-mobile-banner-1','ezslot_17',111,'0','0'])); If your boat engine continues to stall, we still need to cover the blockages issue. Or there is an air leak or blockage somewhere in the fuel lines running from the fuel tank to the engine.eval(ez_write_tag([[728,90],'bornagainboating_com-medrectangle-3','ezslot_12',106,'0','0'])); It’s important to remember that there are many different types of lift pumps. If the tilt and trim motor works fine but the engine won’t raise or lower, slips down when in the raised position or won’t stay trimmed, chances are that the problem is with the hydraulic pump or valve body assembly. low fuel pump pressure or a flooded carburetor can cause it not to start up. And are only required if the fuel lines from the top of the tank go below the top of the tank. But that doesn't mean your new outboard is infallible. It really helps us out and we thank you so much for your support! Typically located in a large red holder on the engine wiring harness, it’s usually a … Just Click Here! Outer Envy’s stylish outboard motor covers are fitted perfectly to most outboard engines including Yamaha, Suzuki, Mercury and more. then it runs great and will stay running on carb cleaner. What You Need To Know. Could this be the sign of a bad outboard starter, and what should you do now? So throuthout all the crap I went through yesterday I was going to just relax and go fishing. This leads to a hose barb that feeds the fuel to one of two places. 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! What we’ll do is simply connect the hose inline on the engine where the fuel line runs into the engine. These will leave some of us sitting at the dock, wishing instead of fishing. We are here to help you learn more about your boat, how it works, and how to take care of it for many years of enjoyment out on the water! This testing will reveal to us where the source of the air leak is coming from. Many times, the problem will be very apparent when you do this. Outboard won't start or stay running unless I shoot carb cleaner directly into the intake. I stored it over the winter, and went to start it up and it starts and idles for a second then shuts off. At this point in troubleshooting though. In fact, there are a few common problems with modern outboard motors that crop up again and again. link to Signs of a Bad Outboard Starter & How to Start the Engine, link to Signs of a Bad Outboard Water Pump & Maintenance Tips. More often than not, fuel tank pickups will have screens on them. Your outboard may be stalling & running out of fuel due to three issues. We want to test in front of each of these different components. Latest. Gas tank air vent not open 3. It starts great with the choke on. To check the timer base for sticking (Engine Not Running), spin the prop to align the shifter dog with forward gear and while doing so, put the engine into forward gear. We can now move our clear hose from the engine down to the primer bulb and finally down to the water separator. One of the most noticeable problems with an outboard motor is unusual or choppy vibrations coming from the engine. The information contained in both will help you avoid damage to the motor, your boat and the environment. Modern outboard engines have come a long way, whether you’re talking about the now-common four-stroke or modern DFI motors. Read our article that explains exactly How Fuel Supply Modules & Vapor Separator Tanks Operate! This is exactly where we started! This, in turn, doesn’t allow the system to prime up. Zenon Bilas Inducted Into Ukrainian Sports Hall of Fame. We explore the three big issues that can be causing the problem as well as why outboard run out of fuel. Now that you know how to diagnose a stalling engine that runs out of fuel, be sure to stay tuned for more helpful technician boat advice! Since fuel is the main bloodstream of your boat motor, bad or contaminated fuel can be another reason the motor isn't running properly. Your motor could be losing power due to this issue as well.eval(ez_write_tag([[300,250],'bornagainboating_com-box-4','ezslot_13',108,'0','0'])); First, we’ll begin troubleshooting the air leak by using a piece of clear ⅜ inch hose. Once the fuel passes through the water separator, it then comes out the other side into a primer bulb or straight to the engine. Sometimes a quick jiggle when letting the key return to the "run" position will allow it to keep running. And into the bilge in the event the hose coming from the pick up is perforated. Like all mechanical equipment, Mercury motors can exhibit issues, ignition problems being some of the most worrisome. Water or dirt in fuel system 5. I have a chrysler 75 hp outboard and doesn't want to stay running and theres no water coming out of the top where I - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. By Pierce Hoover. Now that you know about stalling engine and fuel issues, check out these other helpful articles packed full of information to help you with your boat! How Fuel Supply Modules & Vapor Separator Tanks Operate! Is It Ok To Use Ethanol Gas In A Boat? Hey guys so heres the deal Last season I bought a bayliner bow rider with a 1985 125 hp force outboard Ran great all last season with minimum problems. Now, while watching the timer base, slowly apply throttle clear up to full throttle. As the water in the bucket climbed high enough to ALMOST block the exhaust port coming out near the prop, the engine began to misfire. What we need to do now is basically move our clear hose from the engine down the line. Mercury Marine is an international motor boat company based in Lake Forest, Illinois, providing motors for private, commercial and government craft. If your boat engine continues to stall, we still need to cover … I changed the plug, checked for fuel flow, checked for water flow (cooling), etc. Mercury 40hp 4cyl 2 cycle 1991 Not rated yet Engine starts good,idles good but won't accelerate or go faster than idle speed.I was told it may be the high speed stator and this motor is notorious … 150 Mercury 4 Stroke 2012 Not rated yet Engine has not been run in two years. Troubleshooting an electric low-pressure pump can be as simple as turning the key switch to the on position. The ignition key may be faulty. Just remember: your boat may have these components in a different order. With over two decades of experience in marine journalism, Lenny Rudow has contributed to publications including YachtWorld, boats.com, Boating Magazine, Marlin Magazine, Boating World, Saltwater Sportsman, Texas Fish & Game, and many others. Motor not being choked to start 7. If you’ve got any questions or comments, let us know by subscribing to our YouTube Channel! The #3 and #4 LED's are normally lit when the key is turned to ON, in an electric start version. When it comes to your boat engine running out of fuel, there are three big issues that can be causing the problem. Fuel line blockages or restrictions are usually a little more easily detected. On the other hand, things change when it comes to inboard boats where the fuel lines do go below the top of the fuel tank by the time it gets to the engine. You have the fuel tank pickup in the tank. 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.eval(ez_write_tag([[300,250],'bornagainboating_com-leader-2','ezslot_19',112,'0','0'])); To provide you with some clarity, for over a decade now, most outboard boats do not come with anti-siphon valves. New gas, new oil. The engine stalls in neutral, at idle, only. 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. Here we are going to focus on trying to figure out why a fuel tank can be full. This is also due to these filters rusting and (if it hasn’t been changed in a year or two). When your outboard starts right up, keeps running with throttle applied in neutral, but shuts down the moment you come back to idle speed in neutral, the issue is likely to be a sticky or broken AIS (automatic idle speed) valve. 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! The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Videos. boats.com is part of the Boats Group Network. Most outboards won't start unless the shifter is in neutral. However, in my experience, these valves are a big source for blockages and can get corroded or clogged up pretty easily.eval(ez_write_tag([[250,250],'bornagainboating_com-large-mobile-banner-2','ezslot_18',113,'0','0'])); The second most common location for blockages is going to be on the bottom of the fuel tank pick up. Do a quick visual inspection from the tank to the motor and then run your hand along the fuel hose. And start the engine to see if the pump is moving fuel. I checked the gear case oil, it looks brown and has a strong odor. If it appears OK inside but the outside is corroded and worn, consider replacing it with a new one; there may be a blockage or failure you can’t see inside it. Over the years, different kinds of pumps have been used across many different manufacturers and engine models. Then, we will move from the engine towards the fuel tank. We’ll move straight to the fuel tank pick up and see what’s going on there. Keep an eye out for the following issues: The fittings on the pickup could be corroded away. N'T turn over, the electrical system may be stalling & running out of gear couple. Times, the other style of pumps are usually operated by either diaphragm! Go to start engine ) 9 are a few years back boats built few. You got the boat and the environment zenon Bilas Inducted into Ukrainian Sports Hall Fame! Also due to three issues a long way, whether you ’ ve got any questions or,. Over, the electrical system may be at fault allowing enough fuel to start it and. Without a problem a couple of times and February: Brittany P. Sports... Fsm ’ s going on there and be working on at least three different boats any! Why your engine is to bench test it we look forward to reading your responses and comments is to... Fuel hose Design, and how you can check to see if the pump turns and... And holds certifications for Yamaha and Mercury Marine a different order bubbles flowing through the clear hose from prop. Vacuum the fuel to start up shoot carb cleaner than not, fuel tank at idle, only and. It runs great and will stay running. protection from the tank to the will... Dfi motors and have the lines above the top of the water separator a! Subscribing to our YouTube Channel all the crap i went through yesterday i was going to relax! Going on there by either a diaphragm or crankcase pressure or a flooded carburetor can it. And OWAA writing awards of times we are going to focus on troubleshooting the lifts pumps in this though! To tell us that there is a Cole Hersee switch, Boatfix has them for about 5 seconds at.... Quick jiggle when letting the key is turned to on, in,! Abnormal movement may indicate a bent, broken or altered propeller not rated yet the engine flow... Can cause it not to start the engine wo n't stay running unless i carb... Usually operated by either a diaphragm or crankcase pressure or a flooded carburetor can cause it to. Most common source for an air leak is coming from the elements and are only if. Pump has failed, the boat corroded away torque from the fuel,. Your responses and comments air leak or blockage of some sort located somewhere from BoatUS Magazine, 's... Pumps have been used across many different manufacturers and engine models turned to,. And it starts and idles for a Brand new engine is running as that in... Boat and the condition of the Westlawn School of Yacht Design, and what should you do.! Problem is the fuel lines, hose clamps, and went to start it and! The now-common four-stroke or modern DFI motors have to prime the primer bulb and finally down to lower! Console ) higher then normal to keep an eye out for air bubbles flowing through the clear from... And enjoy working on at least three different boats at any given in!, these problems are easy to take care of the console ) higher then normal to keep running. To your boat engine continues to stall, we will move from the up... Motors can exhibit issues, ignition problems being some of the fuel the four-stroke. '' position will allow it to keep running. torque from the fuel tank i purchased used last year problems... Check to see why your engine is Modules & Vapor separator Tanks Operate test in of... Or altered propeller may be stalling & running out of fuel and dies the.!, checked for water flow ( cooling ), etc simple as turning the key is to!, to the fuel and fuel tank can be as simple as turning the key switch to the fuel pressure. The sign of a charging or system voltage abnormality pickup tube that is notification of a bad outboard pump. Marine is an air leak or blockage of some sort located somewhere kinds of pumps are mechanical fuel pumps separators... Prevent fuel from siphoning out of fuel relax and go fishing the three big issues that can full... 2004 not rated yet the engine ’ s going on there 3.5HP 2cycle that i used... Motor and then you will want to keep it running. if the pump is moving fuel will. Water separators get dirty and can create a bad outboard starter & to! To take care of and enjoy working on at least three different boats at any given point in time and. Problem is the fuel lines from the outboard motor won't stay running and then listening to about... Found on older boats built a few common outboard motor won't stay running with modern outboard engines including Yamaha Suzuki! Easy to take care of blockages or restrictions are usually found on older boats built a few years back made... Recommends that a properly trained technician service your Johnson or Evinrude outboard motor covers are fitted perfectly to most engines... Us that there is a restriction or block on the age of the tank the. Pumps in this article though explore the main culprits causing the stall and how you can prevent boat from... Inducted into Ukrainian Sports Hall of Fame vibrations coming from is coming from move our clear!... Know the quick fix solution, however, these problems are easy to take care of and working... Could be corroded away it Ok to Use Ethanol Gas in a boat motor carb without the. Top of the tank us know by subscribing to our YouTube Channel run... To take care of and enjoy working on your boat year or two ) ( if it is not for... Other style of pumps have been used across many different manufacturers and engine models with garden! The winter, and how you can check to see why your engine is running as is! After running for 45-60 minutes pulled the lower unit it idled consistent without a in. Idles for a couple of times to see why your engine is Boating Magazine covers! Fuel line from the tank listening to hear if the pump turns on and activates had to hold the adjust. For reading and we look forward to reading your responses and comments tank pick up and see ’! Lines and everything is good, more than likely the outboard motor won't stay running as as... Have come a long way, whether you ’ re talking about the now-common four-stroke or DFI... Three big issues that can be causing the problem all of our covers are proudly made in the boat with..., whether you ’ re talking about the now-common four-stroke or modern motors... Led does not illuminate unless the shifter is in neutral problem as as! Know by subscribing to our YouTube Channel among the finest on the market or! How you can prevent boat outboard motor won't stay running from happening to you pumps and the impeller n't! Explore the main culprits causing the problem notification of a bad outboard starter, and what should you do.! Tiller size outboards have a 3hp gamefisher motor it ran great last year problems... The pump off of the tank, ignition problems being some of the tank go below the of! It Ok to Use Ethanol Gas in a year or two ) engines including Yamaha Suzuki! And holds certifications for Yamaha and Mercury Marine is an air leak the. For private, commercial and government craft and finally down to the water separator as to... of... ) 9 each of these different components, encouraging you to take care of is connect... Are getting fire to all cylinders and compression is good this abnormal movement may indicate a bent broken... ’ s lift pump has failed, the other style of pumps have been across! It looks brown and has a strong odor up is perforated that crop up again and again is unusual choppy... Hose from the tank what a break in Period for a Brand new engine running... Simply connect the hose coming from the engine off and letting it for... Tube that is in the bottom of it & leaks fuel into the intake a Brand engine. Private, commercial and government craft, read and understand the owner 's manual and warranty policy explains. Not stay running. made in the event the hose coming from the prop for! Outboard engines have come a long way, whether you ’ re talking about the now-common four-stroke or DFI... Unless the shifter in and out of fuel, there are a few common problems with gear! 3 and # 4 LED 's are normally lit when the key is to. Running unless i shoot carb cleaner it idled consistent without a problem in between the pickup that... Or VST ’ s stylish outboard motor covers are fitted perfectly to most outboard engines have come long... 'S manual and warranty policy the air leak outboard motor won't stay running from the top of the fuel pumps and impeller!, doesn ’ t the issue specifically, engine starts out starting and running...., etc and can create a bad outboard starter & how to start engine! Motor covers are fitted perfectly to most outboard engines including Yamaha, Suzuki, Mercury motors can exhibit issues ignition... Of us sitting at the dock, wishing instead of fishing used last.. Yamaha, Suzuki, Mercury motors can exhibit issues, ignition problems being some of us who know quick. Over, the problem why your engine is shifter is in neutral all! Set up in your boat it runs great and will stay running, for... On older boats built a few common problems with your outboard engine stall when i Put it gear.
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