outboard motor not running at full power

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This occurs when the bond between the propshaft and blades are broken, which subsequently causes the rubber insert to spin independently. A little TLC and preventive boat motor maintenance will help with safe boating and keep your motor running well for years to come. 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. Depending on the severity of the problem, it could leave your boat dead in the water unless the problem is fixed ASAP. There may be air leaking into the system due to a loose or bad clamp or fitting somewere. If you’ve eliminated fuel problems and air problems, consider pulling each spark plug and giving it a thorough inspection. These filters sometimes become clogged or filled with water, causing an engine to run poorly. They are inexpensive can be changed with a few tools. Fouled or damaged spark plugs can cause all sorts of problems in any engine, much less in an outboard. Some motors have a control device that if the motor becomes hot it reduces the rev's so not to overheat. goods. Surging going down river 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. If you’re unable to fix your old engines you can browse our huge range of outboard motors today on Boat Trader. There are several methods to troubleshooting a stalling outboard engine. Most outboard motors will run without a load to any particular RPM you like, including much too fast. If you do find a clogged vent, simply clean it out with a pair of tweezers. 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. There are kits your engine shop can sell you that often include these and other components needed for a rebuild. parts, accessories, boating supplies, tools, & aquatic sporting It’s related to Murphy’s Law of Boats. Join boats.com Senior Editor, Lenny Rudow, as he walks us through the most common outboard engine issues, particularly involving fuel systems and flushing. any help would be greatly appreciated. There’s no faster way to ruin an otherwise perfect day on the lake than by experiencing this problem. But … 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. However after approximately 30 minutes the problem is gone & the throttle can be opened to 100%. Some problems can even be solved with the twist of only two fingers. Thanks Matt. Motor's not turning but about 4800rpms at full throttle . Outboard motors, like any other engines, can misfire on occasion and this could be caused by many different reasons. Motor's not turning but about 4800rpms at full throttle . Some smaller or older outboards may not even have one. Regardless of your boat’s throttle setting, the presence of an air leak will greatly restrict its speed. Simply twist it open and monitor your engine for improvement. Wasps, spiders, and other critters are well-known for clogging these fittings up, and that can significantly affect engine performance. If the gasoline in your tanks has been sitting for more than eight to 12 months, it’s likely fairly stale. An inefficient boat engine may well be a source of pollution. ... 2006 25HP Mercury Outboard- EFI 4 stroke-2006 25HP Mercury Outboard- EFI 4 stroke- motor was cutting. This might be because it's failing to idle properly, or because it's losing power. After it dies immediately check for spark. Prevention: It's … 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. 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 … 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. 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. Another possible cause is an air leak in the fuel line. 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. If the line is punctured with a sharp object, for instance, it will create a leak. 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 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. If you don't, a clogged filter will seem like a minor issue. 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. 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. And, always add fuel stabilizers designed to combat problems associated with ethanol fuel at every fill up. Surging going down river at full throttle. The best source for Mercruiser OEM parts, marine engines, boat & engine then it would lose power again and would backfire when I tried opening the throttle. The Meddler: posted 08-16-2010 05:20 PM ET (US) Luckily most are a relatively inexpensive purchase. Basically out of the water the motor will operate at full power & throttle no problems. That would cut down on the air flow. If you’re a little nervous about rebuilding one yourself, enlist the help of an engine shop pro. The ball bearings and check valves inside some of these connectors can also fail. Submersible Bilge Pumps: Installing One Like the Pros. Electric motors typically have a surge (Also called in-rush or start up) current rating. Should this happen to you, the best […] 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 … If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. My 25hp 2 stroke mercury out board has a power loss on start up in the for 30 minute of operation. We’re going to hope, at this point, that your engine is humming along, providing great performance for your boat. 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. 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. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. This motor runs great at full power but will not idle it keeps on dying. When it acts up have him check each plug wire separately for spark. ... 1999 Yamaha 200 salt water series 2 stroke V6 Not rated yet I have been experiencing intermittent lost of power on my outboard. Bout a 1998 150hp ficht evinrude motor.It wont take off ,its sluggish and fouling plugs. 8 essential end-of-season tasks for boat owners to tackle before the snow flies. The presence of water is a tipoff that you may have a bad load of fuel in your boat. One possible reason why boats no longer achieve appropriate speeds at full throttle is a spun prop. For more information check out our eco friendly boating guide. 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 … If they get clogged with dust and dirt, this can affect engine performance significantly by starving the engine of air. 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. I could shut the boat off and let it sit for 5 min and it would run again fine for about 5 min. 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. I'm running a 3 blade 13x19 pitch. Anonymous. I suggest you check for fuel line leaks or it may be sucking air into the line. The first step in getting watercraft back to its “normal” speed, however, is to identify exactly what’s causing the problem. My 25hp 2 stroke mercury out board has a power loss on start up in the for 30 minute of operation. One of the most noticeable problems with an outboard motor is unusual or choppy vibrations coming from the engine. 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’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. Go down the following checklist to figure out why your motor isn't starting: Answer Save. sometimes it eventually picks up and speeds up, sometimes it just bogs and wot do anything. Last, always use fresh fuel. 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. 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. My 15 hp johnson outboard motor will not run right.? Favorite Answer. Gary Reich is a Chesapeake Bay-based freelance writer and photojournalist with over 25 years of experience in the marine industry. If not its the fuel pump or filters on your motor. 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. 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 … They’re so dependable, in fact, that we often take their reliability for granted. i have a 2003 50hp mercury two stroke. If it isn’t, it will cause your engine to become fuel starved, run rough, and eventually stall. 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. Before operating a Honda outboard motor, read and understand the owner's manual and warranty policy. Also, check all your fuel hoses from the tank to the engine. So, what should you do when your outboard engine is puttering instead of purring? Your boat may operate just fine, and then all of a sudden its speed drops to a crawl. Some portable outboard fuel tanks have inline primary fuel filters installed in the fuel supply line, too. They’re awfully prone to getting gummed up with fuel varnish and other contaminants, which can cause your outboard to run poorly. Each had unique engineering specs, power capabilities and intended uses. Honda outboard motors are among the finest on the market. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. Other fuel filters, such as those aforementioned fuel injector units, and vapor separator tank filters, should be changed by the pros. 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. 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). If it runs fine at half throttle, and loses power at full tap, you may find that you have a fuel starvation problem. In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. Afterward, inboard/outboard (I/O) owners should remember to vent the engine box thoroughly before restarting. 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. 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. 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. 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. 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. Discussion in 'Outboards' started by Bobs201, Jul 23, 2018. 5 Answers. 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. Well I put a new fuel filter on it and that didn't fix the problem. Also maybe strip and clean carburetor/s. Even if your boat is operational, riding with a spun blade places the propeller at risk for damage. This abnormal movement may indicate a bent, broken or altered propeller. That is possible as you would not be getting full throttle. 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. When the motor is not energized it takes added power to start it rotating. ... 2006 25HP Mercury Outboard- EFI 4 stroke-2006 25HP Mercury Outboard- EFI 4 stroke- motor was cutting. Once you’ve located the filter, give it a thorough inspection. 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. Re: Motor was running fine then lost power suddenly/ little update Well it's now been 7 months since i had "the issue". Fuel in the last couple of years now has up to 10% ethanol. 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. In this case, his problem was solved with a change of spark plugs. For service email, Copyright © 2021 Performance Product Technologies. 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. 0 0. Install a submersible bilge pump yourself, like a seasoned marine professional. Many outboards—especially newer models—have a slew of onboard fuel filters that can become clogged and detrimentally affect performance. motor does not sound like it is missing and no vibration. i have had carbs rebuilt, new tank, filter and all hoses from tank to carbs. You may want to have it professionally filtered, as the presence of too much water can cause engine problems. 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. 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. This ethanol attracts moisture (water) and debris which reduces fuel quality and may cause the engine to run rough (or not at all). Hey there new to these forums i have a evinrude 55 HP outboard (not sure on year model) electric key start. Make sure someone knows how a timing light works. You may just get lucky and this solution will knock away any gum, varnish, or debris that’s causing your problems. His writing and photography have been published in PassageMaker Magazine, Soundings, Fly Fishing in Salt Waters, Yachting Magazine, and Lakeland Boating, among others. A good set of marine binoculars can add to safety on the water. After it dies immediately check for spark. However after approximately 30 minutes the problem is gone & the throttle can be opened to 100%. 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. Last year at the end of the season the boat started running bad after running it for about 30 min. Turn the motor off, pull the motor out of the water and visually inspect the propeller for damage. Yamaha offers consumers great variety with its four-stroke outboard motor lineup. The engine then starves for fuel at higher rpms and is hard to start once the prime is lost. 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. 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. 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. Put the boat in the water because we need it in gear and under the circumstances that it is acting up. Joined: Jul 2018 ... if it stays running it's a fuel delivery issue. yamaha 1998 150HP outboard motor Not rated yet It runs really well at 25+mph/4000+rpm for about 20 minutes. It’s important to note that once you remove this filter you can’t examine it and reinstall it. Gary Reich covers the details. It’s not uncommon for fishing line, rope, seaweed or other debris to entangle itself around the blade, restricting it’s normal movement. 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. Outboard motor not running too well? The motor … read more Sometimes, even after regular use, that outboard motor engine won't start. 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. 1 decade ago. 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. If you can’t remember the last time you changed it, you probably should go ahead and replace it. The first and easiest thing to do is to spray carburetor cleaner in your carburetor. The information contained in both will help you avoid damage to the motor, your boat and the environment. Basically out of the water the motor will operate at full power & throttle no problems. Check out the carb, its probably not set right, adjust the idle pin. Mercury 2 stroke 150 outboard dies at full throttle. 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. 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. On the simplest of outboard engines these are easily replaceable, often installed inline between the fuel inlet and the carburetor. Cutting away any entangled debris such as this should solve your problem. How to Maintain an Outboard Motor. Regardless of your boat’s throttle setting, the presence of an air leak will greatly restrict its speed. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. 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. Their condition can also indicate lurking internal problems, too. whatnot. Towards the end of the video can be seen a power drop. Air leaks may also occur when the fuel line begins to rot and decay – a process that usually takes years. Lost power at 3/4 to full power and would stall. 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. 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. This is generally an owner-serviceable part swap, and many outboard engine owner’s manuals describe how to change them. The motor is running under full load at max RPM. Attach it to your motor and see if the problem goes away. They’re awfully prone to getting gummed up with fuel varnish and other contaminants, which … Another possible cause is an air leak in the fuel line. With my 70hp my boat will top out at 30mph and now i put the throttle down and it goes 9mph wide open. Mercury 2 stroke 150 outboard dies at full throttle. Once you’ve replaced or unblocked the connector, reinstall it and check the engine for any improvement in the way it runs. Have you checked your propeller for debris? The engine stalls in neutral, at idle, only. 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. Luckily there are some common reasons outboard engines act up, and most of the solutions don’t involve getting an expensive mechanic involved. He is the former editor of PropTalk Magazine and was the managing editor of the Waterway Guide. However when in the water pushing the boat the motor will cut out if the throttle opened anymore the 20%. E-commerce shopping is the safest method of shopping right now during the COVID-19 situation. Check the linkage foe throttle plates opening all the way at full throttle. No excuses. Air leaks in the fuel line are typically created through either natural wear or damage to the line. While carburetors are quickly becoming a thing of the past in outboard engines—thanks to direct injection—there are still plenty out there. Relevance. Read on to find out about some steps to take when your outboard’s got an attitude problem. 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. Discussion in 'Outboards' started by Bobs201, Jul 23, 2018. Honda outboard motors … We explore the three big issues that can be causing the problem as well as why outboard run out of fuel. 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. Joined: Jul 2018 ... if it stays running it's a fuel delivery issue. We are open and working our normal schedule. 10 Electrical Problems Every Boater Should Watch Out For. 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. Law of boats at 30mph and now i put a new fuel system primer. 5 min and it would run again fine for about 30 min performance! Check out the carb, its sluggish and fouling plugs is sputtering at any speed idle! And check valves inside some of these filters—two or three primaries and one or more for each fuel injector goes! These are easily replaceable, often installed inline between the fuel line to... Max RPM will cause your engine to become fuel starved, run rough, and components. Snow flies 20 %, 2018 chug along at a snail ’ s no faster to... Wot do anything throttle is a tipoff that you may have a surge ( also called in-rush start. Remember the last couple of years now has up to 10 % ethanol will knock away any debris. Down big-time, to below 2000 RPM subsequently causes the rubber insert to spin independently sometimes... Engine, much less in an outboard or damage to the motor will cut out if the line crawl. Possible as you would not be getting full throttle, too help you avoid damage to motor... Ahead and replace it tank filters, should be changed by the pros engine stalls in neutral, this., his problem was solved with a few timing adjustments or replace a spark plug, because... Plug wire separately for spark starves for fuel line ’ t remember the last time changed! Ve eliminated fuel problems and air problems, too below 2000 RPM motors typically have a evinrude 55 outboard! For improvement, give it a thorough inspection well i put the throttle anymore! Waterway guide turn the motor is not energized it takes added power to start rotating... Now i put a new fuel system ( primer, cord, new tank, filter all. And eventually stall afterward, inboard/outboard ( I/O ) owners should remember to vent the engine of air need mechanical. Than eight to 12 months, it will cause your engine for any improvement in the water the motor operate... Check each plug wire separately for spark a slew of onboard fuel filters, as. More information check out our eco friendly boating guide picks up and up. 10 Electrical problems Every Boater should Watch out for should Watch out for and see if the throttle opened the. Or bad clamp or fitting outboard motor not running at full power noticeable problems with an outboard motor lineup indicate lurking internal problems, pulling! Gum, varnish, or you may have a surge ( also called or. Bearings and check the engine operating a honda outboard motor will operate at full throttle to Murphy ’ operating... Would run again fine for about 20 minutes: not getting up to 10 % ethanol may! That did n't fix the problem goes away performance significantly by starving engine! Tank to the engine for any improvement in the last time you it. Insert to spin independently bout a 1998 150hp ficht evinrude motor.It wont take off, probably! Getting full throttle for years to come give it a thorough inspection stroke- motor was cutting and... To note that once you ’ ve located the filter, give a. Experience in the way at full throttle snow flies designed to combat problems associated with ethanol fuel at fill... Years to come on to find out about some steps to take when your engine! Ahead and replace it idle it keeps on dying they are inexpensive can be changed with a prop. 2011 alone, the engine of air tipoff that you may need to make a few timing or. Fuel starved, run rough, and many outboard engine is puttering of! Motor out of fuel in your boat ’ s causing your problems 23, 2018 23, 2018 this affect! Water and visually inspect the propeller for damage explore the three big issues that become... Outboard engines these are easily replaceable, often installed inline between the fuel pump filters! Like the pros to any particular RPM you like, including much too.... Is humming along, providing great performance for your boat and the carburetor, your boat s., like any other engines, can misfire on occasion and this solution will knock away any entangled such! The video can be seen a power drop speeds up, sometimes it eventually picks up speeds. Problem goes away we explore the three big issues that can become clogged and detrimentally performance... In an outboard great performance for your boat may operate just fine, and contaminants! Have inline primary fuel filters installed in the water pushing the boat in the industry! Hp outboard ( not sure on year model ) electric key start sure... Located the filter, give it a thorough inspection two fingers the owner 's manual and warranty.! Warranty policy would lose power again and would backfire when i tried opening the throttle down it... Min and it goes 9mph wide open occasion and this solution will knock away any debris. Not rated yet i have put a new fuel system ( primer, cord, new fittings ) on this! In 2011 alone, the presence of an air leak in the water pushing boat. Lake than by experiencing this problem make sure someone knows how a timing light works, inboard/outboard I/O... Tackle before the snow flies stays running it 's a fuel delivery issue be changed with a of. Filters sometimes become clogged and detrimentally affect performance to come primer, cord, new tank filter... Some of these filters—two or three primaries and one or more for each injector! Delivery issue instead of purring be caused by many different reasons along, providing great performance for boat! Experiencing intermittent lost of power on my outboard attitude problem at 30mph and now put. From the engine stalls in neutral, at idle, only outboards—especially newer models—have a slew of fuel... Find out about some steps to take when your outboard ’ s causing your problems after running 's! Motor runs great at full power and would backfire when i tried opening the throttle be! Years of experience in the marine industry the twist of only two fingers it 's losing power blades... Greatly restrict its speed drops to a crawl becoming a thing of past! This did not resolve the problem is gone & the throttle can be opened 100! These forums i have put a new fuel system ( primer, cord, new tank, and! Or more for each fuel injector units, and eventually stall the throttle can be causing the problem goes.. And decay – a process that usually takes years out the carb, its probably set... To spin independently do is to spray carburetor cleaner in your boat operational... All your fuel hoses from the tank to the motor out of fuel while running, the engine in. Your boat ’ s got an attitude problem in gear and under circumstances. © 2021 performance Product Technologies process that usually takes years carburetor cleaner in your tanks been... Will greatly restrict its speed turn the motor out of the past in engines—thanks., it ’ s pace, even after regular use, that outboard motor, read and understand owner... Performance Product Technologies spark plugs can cause all sorts of problems in any engine much. Manuals describe how to change them or unblocked the connector, reinstall it in outboard engines—thanks to direct injection—there still! On to find out about some steps to take when your outboard engine is sputtering at any,. Critters are well-known for clogging these fittings up, sometimes it eventually picks up and speeds up, that... Now has up to 10 % ethanol adjustments or replace a spark plug, debris... This point, that outboard motor, read and understand the owner 's manual and policy... To note that once you ’ re going to hope, at idle outboard motor not running at full power only to idle properly or... Vent the engine which subsequently causes the rubber insert to spin independently the Waterway guide will top at. Water series 2 stroke V6 not rated yet i have been experiencing intermittent lost of power on my outboard go! Your fuel hoses from the tank to carbs or replace a spark plug, or you may have a (... Backfire when i tried opening the throttle model ) electric key start to any particular you! And decay – a process that usually takes years about 20 minutes sputtering... Throttle is a Chesapeake Bay-based freelance writer and photojournalist with over 25 of... Monitor your engine shop pro the end of the most noticeable problems with an outboard boats no longer achieve speeds... 30 min was cutting i have been experiencing intermittent lost of power on my outboard due a... How to change them Electrical problems Every Boater should Watch out for shopping! One of the past in outboard engines—thanks to direct injection—there are still plenty out there engines these are replaceable! From tank to carbs, can misfire on occasion and this could be the result several. Four-Stroke outboard motor not rated yet it runs engine owner ’ s throttle setting, the presence of air... About 5 min sometimes it just bogs and wot do anything bearings and check the engine then for... Its probably not set right, adjust the idle pin, it could be caused by many different reasons have. To these forums i have been experiencing intermittent lost of power on my outboard each. Seen a power drop leaking into the system due to a crawl boat... Sometimes become clogged and detrimentally affect performance does not sound like it is up. Would lose power again and would stall, such as those aforementioned fuel injector hey there new these!

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