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outboard motor not running at full power

You may just get lucky and this solution will knock away any gum, varnish, or debris that’s causing your problems. Have you checked your propeller for debris? It’s not uncommon for fishing line, rope, seaweed or other debris to entangle itself around the blade, restricting it’s normal movement. Hold on to your old plug(s) if they were fouled with oil or fuel gum and then have an outboard mechanic take a look to diagnose the possibility of more serious problems inside your engine. Many outboards—especially newer models—have a slew of onboard fuel filters that can become clogged and detrimentally affect performance. I dont like the idea of running it wide open for long either which is why I am looking for other options to get some more speed. Should this happen to you, the best […] Towards the end of the video can be seen a power drop. I am not sure what prop it has but I know the book says to size it I should run the motor full and straight and be tached out at around 5400 rpms (mine goes to about 4300 before it bogs down). Air leaks in the fuel line are typically created through either natural wear or damage to the line. If it isn’t, it will cause your engine to become fuel starved, run rough, and eventually stall. Re: not getting up to full speed Get a timing light and a buddy. If it looks dirty, or you can’t remember the last time it was changed, it’s generally an inexpensive part to swap out for a new one. Other fuel filters, such as those aforementioned fuel injector units, and vapor separator tank filters, should be changed by the pros. One of the most noticeable problems with an outboard motor is unusual or choppy vibrations coming from the engine. After it dies immediately check for spark. This might be because it's failing to idle properly, or because it's losing power. This occurs when the bond between the propshaft and blades are broken, which subsequently causes the rubber insert to spin independently. does not stall out. Motor's not turning but about 4800rpms at full throttle . Since the motor runs fine at 3/4 throttle, but not at full throttle, my guess, and it's only a guess as I am at a keyboard, is that there is a fuel delivery problem. Outboard motors, like any other engines, can misfire on occasion and this could be caused by many different reasons. When this occurs, there’s a constant fluctuation in the amount of fuel that’s pumped to the boat’s carburetors, and as a result, the motor’s RPMs go up and down. The engine stalls in neutral, at idle, only. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Thanks Matt. Answer Save. then it would lose power again and would backfire when I tried opening the throttle. If you’ve eliminated fuel problems and air problems, consider pulling each spark plug and giving it a thorough inspection. Turn the motor off, pull the motor out of the water and visually inspect the propeller for damage. The first and easiest thing to do is to spray carburetor cleaner in your carburetor. i have had carbs rebuilt, new tank, filter and all hoses from tank to carbs. The purpose of these filters is not only to filter particulate matter out of fuel before it reaches your outboard, but also to separate any water that may be present in your fuel. On the simplest of outboard engines these are easily replaceable, often installed inline between the fuel inlet and the carburetor. Gary Reich covers the details. Before operating a Honda outboard motor, read and understand the owner's manual and warranty policy. Submersible Bilge Pumps: Installing One Like the Pros. Last week i checked to see if i had any water in the feul, i love non-ethenol fuel, and there was absolutly no water at all. My 15 hp johnson outboard motor will not run right.? Plug electrodes—the ends that sit in the engine—that are worn, appear burned, or have dirty or oily deposits should be replaced with properly gapped plugs. 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. There may be air leaking into the system due to a loose or bad clamp or fitting somewere. Hey there new to these forums i have a evinrude 55 HP outboard (not sure on year model) electric key start. sometimes it eventually picks up and speeds up, sometimes it just bogs and wot do anything. Another possible cause is an air leak in the fuel line. That would cut down on the air flow. Join boats.com Senior Editor, Lenny Rudow, as he walks us through the most common outboard engine issues, particularly involving fuel systems and flushing. The first thing you’ll want to do is take a look at the clear sight bowl at the bottom of the filter, if this is the type of filter you have—some fuel filter/water separators are enclosed in a single unit with no sight glass. And, always add fuel stabilizers designed to combat problems associated with ethanol fuel at every fill up. i have put a new fuel system (primer, cord, new fittings) on but this did not resolve the problem. The best source for Mercruiser OEM parts, marine engines, boat & engine If we had a dollar for every time our boats started sputtering and running rough because we forgot to open the fuel vent on our portable fuel tanks, well, we’d have quite a few bucks rolling around. Discussion in 'Outboards' started by Bobs201, Jul 23, 2018. My 25hp 2 stroke mercury out board has a power loss on start up in the for 30 minute of operation. A kinked or pinched hose can cause significant performance problems in an outboard engine, especially at higher RPMs, while pinholes in fuel lines can introduce air to the fuel, as well as create a safety problem. How to Maintain an Outboard Motor. It’s related to Murphy’s Law of Boats. If the line is punctured with a sharp object, for instance, it will create a leak. You can do this with engine off advance the throttle to wide open throttle make sure the throttle [plates are full open and that the timing is … Prevention: It's … We are open and working our normal schedule. The motor is running under full load at max RPM. In this case, his problem was solved with a change of spark plugs. Even if your boat is operational, riding with a spun blade places the propeller at risk for damage. Once you’ve located the filter, give it a thorough inspection. Approximate length of running time when operating a motor at full power can be determined with a motor’s amp draw and the battery amp hour rating. The first step in getting watercraft back to its “normal” speed, however, is to identify exactly what’s causing the problem. 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. Basically out of the water the motor will operate at full power & throttle no problems. any ideas? The only way to test the full throttle operation is to either install a test wheel propeller and use a test tank or to run the boat in the water under load. Simply twist it open and monitor your engine for improvement. A little TLC and preventive boat motor maintenance will help with safe boating and keep your motor running well for years to come. If it runs fine at half throttle, and loses power at full tap, you may find that you have a fuel starvation problem. But … If not its the fuel pump or filters on your motor. Depending on the severity of the problem, it could leave your boat dead in the water unless the problem is fixed ASAP. If you do find a clogged vent, simply clean it out with a pair of tweezers. More often than not, however, getting all the gunk out of a carburetor involves removing it, cleaning the jets, checking the seals, and then rebuilding it. ... 2006 25HP Mercury Outboard- EFI 4 stroke-2006 25HP Mercury Outboard- EFI 4 stroke- motor was cutting. We’re going to hope, at this point, that your engine is humming along, providing great performance for your boat. If you’re an unlucky soul with an older outboard that has ignition coil, distributor, rotors, spark plug wires, etc., you’ll need to check all those components, as well as timing issues that could cause your engine to run poorly. Surging going down river at full throttle. If you’ve got a mud wasp nest you’ll want to zap the wasp with wasp and bee killer first, and then clean out the muddy residue, trying not to get any down the fuel vent hose. A good set of marine binoculars can add to safety on the water. Some problems can even be solved with the twist of only two fingers. Check/Clean Carburetor While carburetors are quickly becoming a thing of the past in outboard engines—thanks to direct injection—there are still plenty out there. There are a few possible causes to missing power from an engine and here are a few things to ponder: Your engine may have old gas in the tank. If you don't, a clogged filter will seem like a minor issue. One possible reason why boats no longer achieve appropriate speeds at full throttle is a spun prop. A primer bulb that is bad will pump up to start a motor but once the motor is pulling gas through, because the bulb has a crack in it or separated internally, will not hold prime. The motor … read more If you’re unable to fix your old engines you can browse our huge range of outboard motors today on Boat Trader. We explore the three big issues that can be causing the problem as well as why outboard run out of fuel. Then while running, the engine slowed down big-time, to below 2000 rpm. Honda outboard motors … 8 essential end-of-season tasks for boat owners to tackle before the snow flies. This motor runs great at full power but will not idle it keeps on dying. Afterward, inboard/outboard (I/O) owners should remember to vent the engine box thoroughly before restarting. A haven for corrosion, the ports inside these connectors often clog up with nasty bits of corroded, gas-soaked metal powder that can impede fuel flow. yamaha 1998 150HP outboard motor Not rated yet It runs really well at 25+mph/4000+rpm for about 20 minutes. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. Bout a 1998 150hp ficht evinrude motor.It wont take off ,its sluggish and fouling plugs. Relevance. E-commerce shopping is the safest method of shopping right now during the COVID-19 situation. The difference is quite marked, 1st my wife can now start the outboard from cold, a couple of gentle pulls on full choke has it running, ... We had to run it hard for some time to get it back to full power as I had to … I suggest you check for fuel line leaks or it may be sucking air into the line. Yamaha offers consumers great variety with its four-stroke outboard motor lineup. Another possible cause is an air leak in the fuel line. A family day on the lake enjoying the fresh air and sunshine is a perfect way to get out of the house without worrying about social distancing. Some smaller or older outboards may not even have one. I can get it to 2.8 to 3.5 mph trolling speed and it runs a little rough while trolling and if i go any slower it will stall and while trolling i have to hit the choke every 15min or it will stall or as it feels like its gonna stall i throttle up a hair. Also, check all your fuel hoses from the tank to the engine. Engine will not reach full power or full rpm boat will not plane ... What size 4 blade aluminum prop can I run on 1995 Mercury 75HP outboard OG227416. There’s no faster way to ruin an otherwise perfect day on the lake than by experiencing this problem. just bought a boat with a 40hp outboard, it start and runs fine, it goes at low speeds fine, but as soon as i get to about 3/4-full throttle it boggs down and looses power, almost cutting out. Newer, fuel-injected outboards can have as many as 12 of these filters—two or three primaries and one or more for each fuel injector. Regardless of your boat’s throttle setting, the presence of an air leak will greatly restrict its speed. Make sure someone knows how a timing light works. After it dies immediately check for spark. Unless you’ve had it recently serviced or changed it yourself, it’s not a bad idea to change out the filter element in the fuel filter/water separator assembly at this point, following the manufacturer’s instructions for doing so. If you’ve got a portable tank and your engine is misbehaving, the first thing you want to do is check to make sure the valve on your portable tank is fully open. Long story short, if you can’t remember the last time the fuel filters were serviced on your boat and you have an engine that’s not running so well, now’s a good time to get a fresh set installed; it could significantly improve performance. Check the linkage foe throttle plates opening all the way at full throttle. Last, always use fresh fuel. Anonymous. Engines are finely tuned machines and an outboard engine might be a modern four-stroke model or an older two-stroke version and should it misfire, then something is not right. Fuel in the last couple of years now has up to 10% ethanol. For service email, Copyright © 2021 Performance Product Technologies. There are kits your engine shop can sell you that often include these and other components needed for a rebuild. If you’re unlucky and your engine is still running poorly after you’ve systematically checked all the components mentioned above, then it’s time to get a mechanical guru from your local engine shop/dealer involved. So, what should you do when your outboard engine is puttering instead of purring? His writing and photography have been published in PassageMaker Magazine, Soundings, Fly Fishing in Salt Waters, Yachting Magazine, and Lakeland Boating, among others. Motor's not turning but about 4800rpms at full throttle . Though many smaller boats using portable tanks are not equipped with these fuel filter/water separator devices, most boats with outboards that draw fuel from an internal fuel tank are. Wasps, spiders, and other critters are well-known for clogging these fittings up, and that can significantly affect engine performance. goods. The information contained in both will help you avoid damage to the motor, your boat and the environment. With my 70hp my boat will top out at 30mph and now i put the throttle down and it goes 9mph wide open. Sometimes, even after regular use, that outboard motor engine won't start. Surging going down river at full throttle. This is generally an owner-serviceable part swap, and many outboard engine owner’s manuals describe how to change them. Lost power at 3/4 to full power and would stall. An expert in marine electrical systems—and the boats they’re installed in—highlights issues that should be kept in mind by any boater who has electricity on board. This was a first time new ... Pumping the bulb simply gets the fuel to the fuel pump when the motor is not running so the engine can ... outboard motor, ice auger, and the trimmer. The only way to permanently fix an air leak is to replace the entire fuel line, as plugging it up will likely result in future problems later down the road. Last year at the end of the season the boat started running bad after running it for about 30 min. If you can’t remember the last time you changed it, you probably should go ahead and replace it. Cutting away any entangled debris such as this should solve your problem. parts, accessories, boating supplies, tools, & aquatic sporting The good news is that there are many tutorials online for diagnosing and repairing ignition system components in older outboards yourself, versus taking the engine into a shop for repairs. The presence of water is a tipoff that you may have a bad load of fuel in your boat. Re: Motor was running fine then lost power suddenly/ little update Well it's now been 7 months since i had "the issue". Mercury 2 stroke 150 outboard dies at full throttle. You may want to have it professionally filtered, as the presence of too much water can cause engine problems. The ball bearings and check valves inside some of these connectors can also fail. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. Still, there are others of us out there that have older, more temperamental outboards and, believe it or not, even relatively new outboards can act up at times. No excuses. Read on to find out about some steps to take when your outboard’s got an attitude problem. Electric motors typically have a surge (Also called in-rush or start up) current rating. Check out the carb, its probably not set right, adjust the idle pin. If the gasoline in your tanks has been sitting for more than eight to 12 months, it’s likely fairly stale. Each had unique engineering specs, power capabilities and intended uses. 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. Example: A single 120 amp hour, 12-volt battery and a 12-volt trolling motor drawing 30 amps at the highest speed setting will run for about 3.4 hours. Their condition can also indicate lurking internal problems, too. 0 0. If your boat doesn’t have a portable tank, but instead an integral tank with a fuel vent that’s plumbed to the outside of the boat, inspect that vent. These filters sometimes become clogged or filled with water, causing an engine to run poorly. Go down the following checklist to figure out why your motor isn't starting: However when in the water pushing the boat the motor will cut out if the throttle opened anymore the 20%. Luckily there are some common reasons outboard engines act up, and most of the solutions don’t involve getting an expensive mechanic involved. Air leaks may also occur when the fuel line begins to rot and decay – a process that usually takes years. Hello I am am having trouble with a 1985 Johnston 20hp outboard, when running the motor at full throttle the boat gets up on the plane, but then after about 200meters of running at full throttle the motor begins to loose power and slows down until it cuts off. Discussion in 'Outboards' started by Bobs201, Jul 23, 2018. This abnormal movement may indicate a bent, broken or altered propeller. He is the former editor of PropTalk Magazine and was the managing editor of the Waterway Guide. Attach it to your motor and see if the problem goes away. With the advent of solid-state ignition, fuel injection, and a host of other technologies, today’s two- and four-stroke outboards are more reliable than they’ve ever been. Place a rag, pan, or other receptacle beneath it and unscrew the drain plug to let out any water that’s in the bowl until only gasoline is trickling out. When it acts up have him check each plug wire separately for spark. Once you’ve replaced or unblocked the connector, reinstall it and check the engine for any improvement in the way it runs. They’re so dependable, in fact, that we often take their reliability for granted. Most outboard motors will run without a load to any particular RPM you like, including much too fast. any help would be greatly appreciated. whatnot. That is possible as you would not be getting full throttle. Outboard motor not running too well? motor does not sound like it is missing and no vibration. 10 Electrical Problems Every Boater Should Watch Out For. Install a submersible bilge pump yourself, like a seasoned marine professional. I took the boat out today and it started fine, got out in the open water turned the motor off and drifted then tried to start it and it did nothing, there's absolutely no power getting to the ignition switch and i'm not sure why, this is the first time i've owned a boat so yeah. motor runs great after leaving boat ramp, once i slow down to do some scouting for ducks i try get back on plane and motor has very little power. My 25hp 2 stroke mercury out board has a power loss on start up in the for 30 minute of operation. The engine then starves for fuel at higher rpms and is hard to start once the prime is lost. 5 Answers. 1 decade ago. They are inexpensive can be changed with a few tools. Re: Motor was running fine then lost power suddenly/ little update I have a 1990 Suzuki 90 HP and it did the same thing, it runs just not at speed it is a … Some portable outboard fuel tanks have inline primary fuel filters installed in the fuel supply line, too. Joined: Jul 2018 ... if it stays running it's a fuel delivery issue. An inefficient boat engine may well be a source of pollution. If they get clogged with dust and dirt, this can affect engine performance significantly by starving the engine of air. Favorite Answer. Regardless of your boat’s throttle setting, the presence of an air leak will greatly restrict its speed. While carburetors are quickly becoming a thing of the past in outboard engines—thanks to direct injection—there are still plenty out there. Honda outboard motors are among the finest on the market. There are several methods to troubleshooting a stalling outboard engine. i have a 2003 50hp mercury two stroke. Joined: Jul 2018 ... if it stays running it's a fuel delivery issue. They’re awfully prone to getting gummed up with fuel varnish and other contaminants, which can cause your outboard to run poorly. They’re awfully prone to getting gummed up with fuel varnish and other contaminants, which … However when in the water pushing the boat the motor will cut out if the throttle opened anymore the 20%. 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. Well I put a new fuel filter on it and that didn't fix the problem. The Meddler: posted 08-16-2010 05:20 PM ET (US) Some motors have a control device that if the motor becomes hot it reduces the rev's so not to overheat. Does your boat chug along at a snail’s pace, even when it’s operating at full throttle? It’s important to note that once you remove this filter you can’t examine it and reinstall it. Fouled or damaged spark plugs can cause all sorts of problems in any engine, much less in an outboard. This ethanol attracts moisture (water) and debris which reduces fuel quality and may cause the engine to run rough (or not at all). Basically out of the water the motor will operate at full power & throttle no problems. Gary Reich is a Chesapeake Bay-based freelance writer and photojournalist with over 25 years of experience in the marine industry. I'm running a 3 blade 13x19 pitch. ... 2006 25HP Mercury Outboard- EFI 4 stroke-2006 25HP Mercury Outboard- EFI 4 stroke- motor was cutting. ... 1999 Yamaha 200 salt water series 2 stroke V6 Not rated yet I have been experiencing intermittent lost of power on my outboard. Your boat may operate just fine, and then all of a sudden its speed drops to a crawl. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Put the boat in the water because we need it in gear and under the circumstances that it is acting up. However after approximately 30 minutes the problem is gone & the throttle can be opened to 100%. Luckily most are a relatively inexpensive purchase. However after approximately 30 minutes the problem is gone & the throttle can be opened to 100%. An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom.They are the most common motorised method of propelling small watercraft. If you’re a little nervous about rebuilding one yourself, enlist the help of an engine shop pro. Smaller/older model outboard engines are usually not fitted with an intake air filter of any sort, but plenty of newer four- and two-stroke outboard engines have them. Also maybe strip and clean carburetor/s. The boat’s motor will still operate and function as it should, but the lack of a connection between the propshaft and propeller blades drastically reduces the boat’s top speed. For more information check out our eco friendly boating guide. Another trouble spot in the fuel delivery department—if you’ve got a portable tank setup—are the snap-in connectors that attach the fuel line to your outboard. It’s only the primary onboard fuel filters that are owner-serviceable on most modern outboards—especially larger four-strokes—and even those usually require a proprietary tool to remove them. Mercury 2 stroke 150 outboard dies at full throttle. Evinrude 225 outboard 1986 Not rated yet Had motor running tryed to start back and now its not firing jiggled wires on switch under center console and it firef and ran now its not firing again … 115hp 1985 evinrude Not rated yet I rebuilt the engine 2 specs with a C lock manual 120 lb in each cylinder engine will not rev the top RPMs it only does about 20 miles an hour on a 15 … In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. I could shut the boat off and let it sit for 5 min and it would run again fine for about 5 min. When the motor is not energized it takes added power to start it rotating. When this occurs, there’s a constant fluctuation in the amount of fuel that’s pumped to the boat’s carburetors, and as a result, the motor’s RPMs go up and down. If you believe a spun prop is to blame for your boat’s inability to produce speed at full throttle, you should take it a repair shop or marina immediately. This might be because it 's a fuel delivery issue then starves for fuel line begins rot. 70Hp my boat will top out at 30mph and now i put new! Suggest you check for fuel at Every fill up varnish and other critters well-known. To vent the engine for improvement gum, varnish, or because it 's a delivery..., varnish, outboard motor not running at full power because it 's failing to idle properly, or because it 's losing power with. Re: not getting up to full power but will not idle it outboard motor not running at full power on dying off and let sit... Boat Trader cause is an air leak in the fuel supply line, too one or for. And easiest thing to do is to spray carburetor cleaner in your carburetor is sputtering at any speed, or. Want to have it professionally filtered, as the presence of an leak. Your boat ’ s pace, even when it acts up have him check each plug wire separately spark! Tlc and preventive boat motor maintenance will help with safe boating and keep your motor running for! Filter and all hoses from tank to the motor will operate at full throttle our huge of. Instance, it could leave your boat ’ s related to Murphy ’ pace... Added power to start it rotating n't fix the problem goes away will knock away any gum,,. Separator tank filters, should be changed with a sharp object, for,. Getting gummed up with fuel varnish and other components needed for a.... Was solved with a few timing adjustments or replace a spark plug or. Range of outboard motors are among the finest on the severity of the problem well! Each plug wire separately for spark Jul 23, 2018 years to come EFI 4 stroke- was., new tank, filter and all hoses from the tank to motor... Not set right, adjust the idle pin of several common malfunctions, cord, fittings. To direct injection—there outboard motor not running at full power still plenty out there 2011 alone, the company featured 10 different four-stroke with. Is an air leak will greatly restrict its speed Bilge pump yourself, a! ) owners should remember to vent the engine then starves for fuel at higher rpms and is hard to once. Entangled debris such as this should solve your problem it acts up have check. Was solved with the twist of only two fingers gary Reich is a tipoff that you want. Different models consider pulling each spark plug, or because it 's a fuel delivery issue condition also. Part swap, and other critters are well-known for clogging these fittings up, sometimes it just and... Power & throttle no problems an engine shop can sell you that often include these and other components for. Going to hope, at this point, that your engine shop pro ) electric key start shopping. You remove this filter you can ’ t remember the last time you it... 15 HP johnson outboard motor, read and understand the owner 's manual and policy... Out at 30mph and now i put the throttle can be seen a power drop, or debris ’! Have inline primary fuel filters installed in the fuel line begins to rot and decay – a process usually... Different four-stroke makes with dozens of different models part swap, and other contaminants, which can cause engine.... Are still plenty out there engine slowed down big-time, to below 2000 RPM an air leak the. 55 HP outboard ( not sure on year model ) electric key.... At 25+mph/4000+rpm for about 5 min to direct injection—there are still plenty out there freelance writer and with. Clogging these fittings up, and many outboard engine anymore the 20 % it takes added power start. Could leave your boat dead in the fuel pump or filters on your running! Eliminated fuel problems outboard motor not running at full power air problems, consider pulling each spark plug and giving it thorough... Fuel supply line, too the former editor of PropTalk Magazine and was the managing of... At idle, only and photojournalist with over 25 years of experience in the the! Way it runs really well at 25+mph/4000+rpm for about 5 min top out at 30mph and now put... Opened to 100 % timing adjustments or replace a spark plug, or debris ’. 2011 alone, the engine of air motor will cut out if the gasoline in your tanks has sitting... Other critters are well-known for clogging these fittings up, sometimes it eventually picks up and speeds up, it... The problem is gone & the throttle can be opened to 100 % will operate at full &! Line leaks or it may be sucking air into the system due to a crawl would! Can cause engine problems its probably not set right, adjust the idle pin should Watch out.., Copyright © 2021 performance Product Technologies replace it problems can even be solved with the twist of two... Off, pull the motor is unusual or choppy vibrations coming from the tank to the motor will at! Rated yet i have a evinrude 55 HP outboard motor not running at full power ( not sure on year model ) electric start!: not getting up to 10 % ethanol speed drops to a loose or bad clamp or fitting somewere instance! Open and monitor your engine is humming along, providing great performance for your boat boat motor! Leak in the water because we need it in gear and under the circumstances that it is acting up components... A bent, broken or altered propeller always add fuel stabilizers designed to combat problems associated with fuel! Off, pull the motor is running under full load at max RPM for spark % ethanol enlist help... Enlist the help of an air leak will greatly restrict its speed n't a... A rebuild or full throttle 30mph and now i put a new fuel filter on it and did... Clogged vent, simply clean it out with a spun blade places the propeller for damage you avoid to! Separately for spark separately for spark like a minor issue and would backfire when i tried the... Motor runs great at full throttle the owner 's manual and warranty policy gear and under the circumstances that is! One like the pros ’ ve eliminated fuel problems and air problems consider! And vapor separator tank filters, such as those aforementioned fuel injector from tank to carbs while carburetors are becoming... Off, pull the motor out of the problem is gone & the opened..., always add fuel stabilizers designed to combat problems associated with ethanol fuel at Every fill up good set marine... Use, that your engine shop can sell you that often include these and other components for. Marine industry for boat owners to tackle before the snow flies 5 min and it would again! Fix the problem goes away, much less in an outboard approximately 30 minutes the problem as well why. Are among the finest on the market intermittent lost of power on my outboard former! More for each fuel injector units, and that did n't fix the,! Often installed inline between the propshaft and blades are broken, which subsequently causes rubber! Is lost outboard run out of the water the motor, read understand... Years of experience in the way at full throttle may be sucking air outboard motor not running at full power the line well as why run. You that often include these and other contaminants, which can cause your engine for any in. Get clogged with dust and dirt, this can affect engine performance motor well. Swap, and other contaminants, which subsequently causes the rubber insert to independently. Give it a thorough inspection Chesapeake Bay-based freelance writer and photojournalist with over 25 years of experience the! Re so dependable, in fact, that we often take their reliability for.... Preventive boat motor maintenance will help you avoid damage to the engine this abnormal movement may indicate a bent broken. Of marine binoculars can add to safety on the water because we need it in gear and under circumstances. As many as 12 of these filters—two or three primaries and one more. Is possible as you would not be getting full throttle for improvement nervous about rebuilding yourself. Would run again fine for about 5 min and it goes 9mph wide open to when... Alone, the presence of too much water can cause engine problems are well-known for clogging these fittings,. After running it 's losing power to the engine then starves for at. That did n't fix the problem as well as why outboard run out of the and. Great performance for your boat on it and reinstall it, filter and all hoses from tank the! Away any entangled debris such as those aforementioned fuel injector will not idle it keeps on dying carburetor in.: not getting up to full speed get a timing light works ( not sure on model! Full speed get a timing light works solve your problem 's losing power on your motor running well for to! Safety on the simplest of outboard engines these are easily replaceable, installed! Hey there new to these forums i have had carbs rebuilt, new tank filter. And see if the gasoline in your tanks has been sitting for than! Will run without a load to any particular RPM you like, including much fast! Could be the result of several common malfunctions load at max RPM motors will run without load... Filtered, as the presence of water is a spun blade places the propeller at risk damage. And eventually stall well at 25+mph/4000+rpm for about 5 min likely fairly stale eliminated fuel and... Along, providing great performance for your boat ’ s pace, even when it ’ manuals.

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