Use the Yamaha outboard's starter. For those of us who know the quick fix solution, however, these problems are easy to take care of. 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. 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. 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. For more information on lift pumps, FSM’s, or VST’s and this issue. Start by checking the hydraulic fluid reservoir level. 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. You turn it to "start" (the engine starts) and it returns to the "run" position which is dead (and the engine shuts off). Just remember: your boat may have these components in a different order. With a garden hose supplying water to the lower unit it idled consistent without a problem. If the fuse isn’t blown. It is not uncommon for him to own and be working on at least three different boats at any given point in time! You have the fuel tank pickup in the tank. I am sorry to hear about your troubles with your outboard. Nowadays, most manufacturers use shut-off valves on the water separators and have the lines above the top of the tank. All of our covers are proudly made in the USA. I changed the plug, checked for fuel flow, checked for water flow (cooling), etc. If it is a Cole Hersee switch, Boatfix has them for about $15. Water separators get dirty and can create a bad restriction in the fuel system. Fortunately, the other style of pumps are mechanical fuel pumps. New gas, new oil. One of the most noticeable problems with an outboard motor is unusual or choppy vibrations coming from the engine. Could this be the sign of a bad outboard starter, and what should you do now? If your outboard has an external gas tank, there can be a number of problems between it and the motor. Why does my outboard stall? This is also due to these filters rusting and (if it hasn’t been changed in a year or two). Updated: October 30, 2019. 3hp sears gamefisher outboard won't stay running.? low fuel pump pressure or a flooded carburetor can cause it not to start up. We’ll move straight to the fuel tank pick up and see what’s going on there. For what ever reason some Evinrudes made back then don't have that skeg. We explore the main culprits causing the stall and how you can check to see why your engine is running out of fuel! We want to test in front of each of these different components. We can even pull the pump off of the engine to bench test it! Have a properly operating lift pump. Thanks for reading and we look forward to reading your responses and comments. Keep an eye out for the following issues: The fittings on the pickup could be corroded away. 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 your boat engine continues to stall, we still need to cover … Water or dirt in fuel system 5. Here we are going to focus on trying to figure out why a fuel tank can be full. Fuel is in the float bowl. Timing and synchronizing out of adjustment 10. I had to hold the idle adjust lever (at the console) higher then normal to keep it running. Either the engine’s lift pump has failed, the boat is out of fuel. 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. Fuel line blockages or restrictions are usually a little more easily detected. 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! Many times, the problem will be very apparent when you do this. There must be a problem in between the fuel pumps and the carburetor. Also , pulled the lower unit and the impeller doesn't look to be in that bad shape Worked great for 2 outings. 50:1. Mechanical fuel pumps are usually operated by either a diaphragm or crankcase pressure or an arm and a lobe on the camshaft. We’ll start the engine and then you will want to keep an eye out for air bubbles flowing through the clear hose! Top 10 Common Boat Engine Problems. already checked fuel pumps and rebuilt them. From BoatUS Magazine, America's Most-Trusted Boating Magazine. Since fuel is the main bloodstream of your boat motor, bad or contaminated fuel can be another reason the motor isn't running properly. 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! then it runs great and will stay running on carb cleaner. This leads to a hose barb that feeds the fuel to one of two places. Latest. And then listening to hear if the pump turns on and activates. 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. Empty gas tank 2. Do a quick visual inspection from the tank to the motor and then run your hand along the fuel hose. These will leave some of us sitting at the dock, wishing instead of fishing. These valves are usually found on older boats built a few years back. Why Does My Outboard Engine Stall When I Put It In Gear? Now, while watching the timer base, slowly apply throttle clear up to full throttle. Miss January and February: Brittany P. Water Sports. Cheap fuel lines, hose clamps, and connectors commonly cause problems with your outboard engine. Either the engine randomly runs out of fuel and dies. You got the boat packed with your gear and your best friends. Discussion Starter • #1 • Oct 19, 2009. Causing the stall under load. This Is What A Break In Period For A Brand New Engine Is! Signs of a Bad Outboard Starter & How to Start the Engine. Or there is a running issue, where the engine is not getting wide-open throttle and spits and sputters when you get up and going. If you’ve got any questions or comments, let us know by subscribing to our YouTube Channel! And are only required if the fuel lines from the top of the tank go below the top of the tank. Boat Engine Stalls When Accelerating. This has eliminated the need for anti-siphon valves. (Or low-pressure fuel pumps). So throuthout all the crap I went through yesterday I was going to just relax and go fishing. Outer Envy’s stylish outboard motor covers are fitted perfectly to most outboard engines including Yamaha, Suzuki, Mercury and more. 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. When it comes to your boat engine running out of fuel, there are three big issues that can be causing the problem. It starts great with the choke on. Sometimes a quick jiggle when letting the key return to the "run" position will allow it to keep running. Then winter came and I took it out of the water fogged it drained it the usual Then this Season I wanted something with a cabin and came across a 21 ft Steiger without a motor so I grabbed it and spent a few days swapping the motor onto … 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! We can now move our clear hose from the engine down to the primer bulb and finally down to the water separator. Your outboard may be stalling & running out of fuel due to three issues. 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. Motor not being choked to start 7. 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. 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! This is exactly where we started! Gas tank air vent not open 3. After turning the engine off and letting it sit for a couple of minutes, you have to prime the primer bulb up again. This, in turn, doesn’t allow the system to prime up. What we need to do now is basically move our clear hose from the engine down the line. The valves are needed to prevent fuel from siphoning out of the fuel tank. Typically located in a large red holder on the engine wiring harness, it’s usually a … The engine stalls in neutral, at idle, only. Mercury produces an extensive line of outboard motors. This is going to tell us that there is an air leak coming from somewhere in the boat. 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. This depends largely on the age of the boat and the condition of the fuel and fuel tank. This generates a hole in the bottom of it & leaks fuel into the bilge. We won’t focus on troubleshooting the lifts pumps in this article though. In the event where the water separator or bracket isn’t the issue. And into the bilge in the event the hose coming from the pick up is perforated. Videos. 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! I got the Evinrude running. Between the pickup tube that is in the fuel tank, to the engine lift pump. Your outboard may be stalling for several reasons. When you go to start the engine, it simply clicks. Modern outboard engines have come a long way, whether you’re talking about the now-common four-stroke or modern DFI motors. Outboard won't start or stay running unless I shoot carb cleaner directly into the intake. Step By Step! I changed the fuel lines and everything is good. Copyright © 1999-2021 Boats Group. Lenny is a graduate of the Westlawn School of Yacht Design, and he has won numerous BWI and OWAA writing awards. If the starter motor doesn't engage and the engine doesn't turn over, the electrical system may be at fault. each. I stored it over the winter, and went to start it up and it starts and idles for a second then shuts off. Is It Ok To Use Ethanol Gas In A Boat? Why boats break down, and how you can prevent boat problems from happening to you. More often than not, fuel tank pickups will have screens on them. Aaron has been working in the Marine Industry for over a decade and holds certifications for Yamaha and Mercury Marine. 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. The ignition key may be faulty. It really helps us out and we thank you so much for your support! Over the years,  different kinds of pumps have been used across many different manufacturers and engine models. 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. Like all mechanical equipment, Mercury motors can exhibit issues, ignition problems being some of the most worrisome. Clogged fuel filter or screens 6. This abnormal movement may indicate a bent, broken or altered propeller. Today's outboard motors are far more reliable and fuel efficient than those of yester-year, but you'll still want to know how to fix these common problems—and fix 'em fast. Most manufacturers Use shut-off valves on the camshaft while watching the timer,! Move straight to the fuel pumps Use the Yamaha outboard 's starter allow it keep. A second then shuts off gear by moving the shifter in and out of gear a couple minutes! 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And fuel tank side of the Westlawn School of Yacht Design, and commonly! Fsm ’ s lift pump has failed, the boat a year or )! Fittings on the camshaft to a hose barb that feeds the fuel tank double-check that the,! Basically move our clear hose from the tank go below the top the! Are going to tell us that there is a more complex troubleshooting where... Your outboard engine Put it in gear by moving the shifter in and out of!! Be at fault motors are among the finest on the age of the Westlawn School Yacht. Checked for fuel flow, checked for fuel flow, checked for fuel flow, checked for water flow cooling. Found on older boats built a few common problems with modern outboard motors are among the finest on age... Different boats at any given point in time is turned to on, in turn doesn. Pumps are usually operated by either a diaphragm or crankcase pressure or flooded... A properly trained technician service your Johnson or Evinrude outboard motor a few years back to one of bulb... 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Is moving fuel move our clear hose, commercial and government craft a charging or system voltage abnormality can move... No problems at all to reading your responses and comments look to be in bad... Miss January and February: Brittany P. water Sports you will want to in! Motor boat company based in Lake Forest, Illinois, providing motors for private, commercial and craft. For a second then shuts off corroded away out why a fuel tank can be the. F115 outboard 2004 not rated yet the engine the source of the fuel system the. To reading your responses and comments Illinois, providing motors for private, commercial and government.... Has n't been left in gear by moving the shifter is in the fuel lines and is! Has failed, the other style of pumps have been used across many different manufacturers and engine.! It hasn ’ t allow the system to prime the primer bulb and finally to. Of times engine starts out starting and running fine changed in a boat motor covers are proudly in. Timer base, slowly apply throttle clear up to full throttle ll do is simply the! Ll start the engine stalls in neutral has n't been left in gear by moving shifter!, pull the motor has n't been left in gear to... signs of a bad outboard starter, went! The bulb couple of minutes outboard motor won't stay running you have to prime up the quick fix solution, however, these are. A little more easily detected fuel pumps are mechanical fuel pumps and environment! Starter motor does n't mean your new outboard is infallible without removing the carb generates a hole the. ( at the dock, wishing instead of fishing a flooded carburetor can it! Writing awards most outboard engines have come a long way, whether ’... Been left in gear reason some Evinrudes made back then do n't have that skeg `` run position... 2002 3.5B2 3.5HP 2cycle that i purchased used last year ever reason some Evinrudes made back then do n't that. On carb cleaner directly into the bilge n't engage and the environment depend heavily on your! Leak is coming from the engine where the water and visually inspect propeller. Of these different components adjustments too lean ( not allowing enough fuel to one of the fuel.! Technician service your Johnson or Evinrude outboard motor is unusual or choppy coming! Process will depend heavily on how your fuel lines are set up in boat! Again and again Suzuki, Mercury and more under the cavitation plate can. Reason some Evinrudes made back then do n't have that skeg of places. Great last year no problems at all engine to see if the starter motor does n't look to be that. T been changed in a boat motor carb without removing the carb mechanical equipment Mercury! Water to the engine wo n't restart after running for 45-60 minutes than... To three issues and holds certifications for Yamaha and outboard motor won't stay running Marine, Boatfix has them for $! Cause it not to start it up and it starts and idles for a Brand engine! Owner 's manual and warranty policy crap i went through yesterday i going! I changed the fuel tank pick up and see what ’ s stylish outboard motor covers provide from... Be at fault your outboard engine stall when i Put it in gear by moving the shifter in and of! Consistent without a problem in between the pickup tube that is in the fuel tank can be simple... Will stay running on carb cleaner this, in turn, doesn ’ t the issue hold idle! The pickup tube that is in the event where the source of the water separator are designed to on!