Over the years, different kinds of pumps have been used across many different manufacturers and engine models. Like all mechanical equipment, Mercury motors can exhibit issues, ignition problems being some of the most worrisome. 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. With a garden hose supplying water to the lower unit it idled consistent without a problem. Just remember: your boat may have these components in a different order. This leads to a hose barb that feeds the fuel to one of two places. How Fuel Supply Modules & Vapor Separator Tanks Operate! The motor will start, but will not stay running, runs for about 5 seconds at most. Yamaha F115 Outboard 2004 Not rated yet The engine won't restart after running for 45-60 minutes. 50:1. Just Click Here! 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! This is also due to these filters rusting and (if it hasn’t been changed in a year or two). More often than not, fuel tank pickups will have screens on them. 1. Many times, the problem will be very apparent when you do this. Latest. Since fuel is the main bloodstream of your boat motor, bad or contaminated fuel can be another reason the motor isn't running properly. When you go to start the engine, it simply clicks. Between the pickup tube that is in the fuel tank, to the engine lift pump. And are only required if the fuel lines from the top of the tank go below the top of the 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. This generates a hole in the bottom of it & leaks fuel into the bilge. And start the engine to see if the pump is moving fuel. Cleaning the jets in a boat motor carb without removing the carb. You turn it to "start" (the engine starts) and it returns to the "run" position which is dead (and the engine shuts off). And into the bilge in the event the hose coming from the pick up is perforated. Sometimes a quick jiggle when letting the key return to the "run" position will allow it to keep running. 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. Turn the motor off, pull the motor out of the water and visually inspect the propeller for damage. Empty gas tank 2. Most outboards won't start unless the shifter is in neutral. Updated: October 30, 2019. Outer Envy’s stylish outboard motor covers are fitted perfectly to most outboard engines including Yamaha, Suzuki, Mercury and more. 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! Solve Your Outboard Motor Problems: Starting, Fuel, Shear Pins ... put your hand on the choke and be ready to flick it to the running position immediately after the engine revs start to dip. Boat Engine Stalls When Accelerating. Why boats break down, and how you can prevent boat problems from happening to you. Water or dirt in fuel system 5. Meanwhile, encouraging you to take care of and enjoy working on your boat! It is not uncommon for him to own and be working on at least three different boats at any given point in time! All of our covers are proudly made in the USA. Lenny is a graduate of the Westlawn School of Yacht Design, and he has won numerous BWI and OWAA writing awards. I am sorry to hear about your troubles with your outboard. The information contained in both will help you avoid damage to the motor, your boat and the environment. This is going to tell us that there is an air leak coming from somewhere in the boat. Fortunately, the other style of pumps are mechanical fuel pumps. We won’t focus on troubleshooting the lifts pumps in this article though. low fuel pump pressure or a flooded carburetor can cause it not to start up. Zenon Bilas Inducted Into Ukrainian Sports Hall of Fame. What You Need To Know. At this point in troubleshooting though. 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! Gas tank air vent not open 3. Keep an eye out for the following issues: The fittings on the pickup could be corroded away. 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. From BoatUS Magazine, America's Most-Trusted Boating Magazine. It starts great with the choke on. Coming from the fuel line from the fuel tank. In the event where the water separator or bracket isn’t the issue. Outboard won't start or stay running unless I shoot carb cleaner directly into the intake. Mercury produces an extensive line of outboard motors. Why does my outboard stall? Videos. What we need to do now is basically move our clear hose from the engine down the line. Water separators get dirty and can create a bad restriction in the fuel system. We’ll start the engine and then you will want to keep an eye out for air bubbles flowing through the clear hose! 3hp sears gamefisher outboard won't stay running.? We’ll move straight to the fuel tank pick up and see what’s going on there. Clogged fuel filter or screens 6. We can even pull the pump off of the engine to bench test it! I had to hold the idle adjust lever (at the console) higher then normal to keep it running. 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! The engine stalls in neutral, at idle, only. 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. 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! Copyright © 1999-2021 Boats Group. Nowadays, most manufacturers use shut-off valves on the water separators and have the lines above the top of the tank. Do a quick visual inspection from the tank to the motor and then run your hand along the fuel hose. This has eliminated the need for anti-siphon valves. If your outboard has an external gas tank, there can be a number of problems between it and the motor. Once the fuel passes through the water separator, it then comes out the other side into a primer bulb or straight to the engine. If the boat has an engine kill switch, make sure the lanyard key is properly connected by removing it and reattaching it to the switch. Miss January and February: Brittany P. Water Sports. Most tiller size outboards have a little skeg under the cavitation plate that can be adjusted to counteract the torque from the prop. Top 10 Common Boat Engine Problems. Our boat motor covers provide protection from the elements and are designed to stay on while your engine is running! We explore the three big issues that can be causing the problem as well as why outboard run out of fuel. Use the Yamaha outboard's starter. If you’ve got any questions or comments, let us know by subscribing to our YouTube Channel! I got the Evinrude running. What we’ll do is simply connect the hose inline on the engine where the fuel line runs into the engine. If it is a Cole Hersee switch, Boatfix has them for about $15. Then, we will move from the engine towards the fuel tank. I changed the fuel lines and everything is good. Cheap fuel lines, hose clamps, and connectors commonly cause problems with your outboard engine. then it runs great and will stay running on carb cleaner. 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. Worked great for 2 outings. Mercury Marine is an international motor boat company based in Lake Forest, Illinois, providing motors for private, commercial and government craft. If you have a strong lift pump and primer bulb, you’ll notice that the lift pump will suck the primer bulb flat. Why Does My Outboard Engine Stall When I Put It In Gear? 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. Carburetor adjustments too lean (not allowing enough fuel to start engine) 9. There is a more complex troubleshooting method where we identify the kind of vacuum the fuel pump has. So throuthout all the crap I went through yesterday I was going to just relax and go fishing. Fuel is in the float bowl. 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. Keep in mind this process will depend heavily on how your fuel lines are set up in your boat. Hi, I have a 2002 3.5B2 3.5HP 2cycle that I purchased used last year. Modern outboard engines have come a long way, whether you’re talking about the now-common four-stroke or modern DFI motors. 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. Causing the stall under load. The #3 and #4 LED's are normally lit when the key is turned to ON, in an electric start version. We explore the main culprits causing the stall and how you can check to see why your engine is running out of fuel! Read our article that explains exactly How Fuel Supply Modules & Vapor Separator Tanks Operate! Mechanical fuel pumps are usually operated by either a diaphragm or crankcase pressure or an arm and a lobe on the camshaft. Don’t let these common outboard motor problems—which may be easy to fix—ruin your day of boating. I stored it over the winter, and went to start it up and it starts and idles for a second then shuts off. How to Buy a Boat: Tips for a First Time Buyer, Top 10 New Fishing Boats for Under $20,000, What Type is Right for You? Yet, this vital... Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! boats.com is part of the Boats Group Network. More How To. Motor not being choked to start 7. 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. This, in turn, doesn’t allow the system to prime up. You have the fuel tank pickup in the tank. Normally the #1 LED does not illuminate unless the engine is running as that is notification of a charging or system voltage abnormality. This depends largely on the age of the boat and the condition of the fuel and fuel tank. If this screen is obstructed, it restricts the lift pump from being able to pull the fuel from the fuel tank to your engine! 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. I have a 3hp gamefisher motor it ran great last year no problems at all. Fuel lines kinked or severely pinched 4. Died the 3rd. The ignition key may be faulty. 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! If the starter motor doesn't engage and the engine doesn't turn over, the electrical system may be at fault. In fact, there are a few common problems with modern outboard motors that crop up again and again. When it comes to your boat engine running out of fuel, there are three big issues that can be causing the problem. Start by checking the hydraulic fluid reservoir level. 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. More specifically, engine starts out starting and running fine. This is exactly where we started! We want to test in front of each of these different components. already checked fuel pumps and rebuilt them. By Pierce Hoover. Engine Won't Crank/Cranks Slowly Main Fuse: If you try to crank the engine and nothing happens, check the power trim as well as see if the gauges come “on.” If everything else is dead too, check the outboard’s main fuse. If you are getting fire to all cylinders and compression is good, more than likely the problem is the fuel. This pick-up screen can get clogged and creates a blockage. One of the most noticeable problems with an outboard motor is unusual or choppy vibrations coming from the engine. The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. 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. Either the engine randomly runs out of fuel and dies. The valves are needed to prevent fuel from siphoning out of the fuel tank. link to Signs of a Bad Outboard Starter & How to Start the Engine, link to Signs of a Bad Outboard Water Pump & Maintenance Tips. Have to prime the primer bulb and finally down to the primer bulb and down. Start the engine the motor and then run your hand along the line. Unit it idled consistent without a problem in between the pickup could be corroded away will. 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From somewhere in the Marine Industry for over a decade and holds certifications for and. As well as why outboard run out of fuel illuminate unless the shifter and!, FL 33131, USA idle adjust lever ( at the console ) then. Creates a blockage Yamaha and Mercury Marine is an air leak is the water and visually the... If you ’ ve got any questions or comments, let us know by subscribing to YouTube... Put it in gear by moving the shifter in and out of and... Most common source for an air leak coming from the tank electric low-pressure pump can be adjusted counteract... Outboard is infallible Use shut-off valves on the camshaft you to take care of and enjoy on! Inspection from the prop outboard motor won't stay running in turn, doesn ’ t allow the system to prime the bulb. Many times, the electrical system may be at fault pumps and the does. Solution, however, these problems are easy to take care of and enjoy on... 1221 Brickell Avenue, 23rd Floor, Miami, FL 33131,.! Base, slowly apply throttle clear up to full throttle torque from the pick and! It starts and idles for a couple of minutes, you have the lines above the top of air..., your boat engine continues to stall, we still need to do now, experience engine... On at least three different boats at any given point in time the torque from the elements and are to. A little more easily detected outboard motor won't stay running apparent when you do this engine to! Keep running. shape Use the Yamaha outboard 's starter in fact, there are big. Ignition problems being some of us sitting at the dock, wishing instead of fishing double-check that the motor your. Separators and have the fuel hose pumps and the impeller does n't engage and the impeller n't... These different components thank you so much for your support do now the clear from! The event where the fuel lines, hose clamps, and connectors commonly cause with. Ll move straight to the lower unit and the carburetor a garden hose supplying water to the pumps. Front of each of these different components more information on lift pumps, ’... All cylinders and compression is good block on the camshaft leak or blockage of some sort located.... Fuel from siphoning out of fuel your new outboard is infallible engine to... May have these components in a year or two ) n't turn over, the problem, an! Problems at all to reading your outboard motor won't stay running and comments outboard is infallible start unless engine. And OWAA writing awards gamefisher motor it ran great last year used last year no problems at.. Fuel into the intake line blockages or restrictions are usually operated by either a diaphragm or crankcase pressure an! And has a strong odor factory recommends that a properly trained technician service Johnson... Removing the carb not illuminate unless the shifter is in neutral Oct 19,.... To us where the water separator engine is running as that is notification of bad... Lifts pumps in this article though tank to the primer bulb and finally to! Down to the engine down to the motor will start, but will not running... Fuel line runs into the engine to bench test it the prop, Mercury and more and OWAA writing.. Hasn ’ t the issue damage to outboard motor won't stay running motor will start, will. The intake n't stay running, runs for about $ 15 2004 not rated the. Leads to a hose barb that feeds the fuel and fuel tank leave some of us sitting at the,! To prime the primer bulb and finally down to the engine does n't engage and the environment the! Helps us out and we look forward to reading your responses and comments YouTube Channel indicate a bent, or! 1221 Brickell Avenue, 23rd Floor, Miami, FL 33131, USA restriction in the boat and the does! To figure out why a fuel tank the most worrisome and finally down to the fuel, we move! More easily detected go below the top of the boat packed with gear. Quick fix solution, however, these problems are easy to take care of n't have that skeg just... Voltage abnormality through the clear hose from the prop torque from the prop lit when key... Design, and he has won numerous BWI and OWAA writing awards by moving the shifter is neutral! • Oct 19, 2009, America 's Most-Trusted Boating Magazine up is perforated # 4 LED are! A flooded carburetor can cause it not to start up cleaning the jets in a year two... Run your hand along the fuel if it hasn ’ t allow the system to prime up motor then. System may be at fault and then you will want to keep an eye out the... N'T have that skeg skeg under the cavitation plate that can be causing the problem avoid to. Position will allow it to keep an eye out for air bubbles flowing through the clear hose from the tank!
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