bad fuel line symptoms outboard

2002 19ft. Spark plugs. The fuel pressure regulator is responsible for maintaining the required pressure in the fuel rails. A normal spark plug will appear dry with a grayish color. Any sort of fuel leaks should be addressed as soon as possible. FUEL LINE HOSE ENGINE CONNECTOR 22-13563Q3 OUTBOARDS MERCURY MARINER YAMAHA 3/8 . When the outboard is running normally, the engine’s fuel pumps create a slight vacuum in the fuel hose. See if the system will hold the vacuum. Fuel system problems The most likely problems to beset older two-stroke outboard engines are with the fuel system. Hard starting is usually the symptom though. (12) C $12.74. Okay there we go. Bad Fuel pressure regulator also show similar symptoms. A clogged fuel filter(s), bad fuel line, faulty lift pump, faulty high pressure pump, bad pump grommets in the VST (Vapor Separator Tank), bad air compressor, faulty pressure regulator, faulty fuel rails or rail fuel lines, a bad tracker valve, bad fuel injector or a bad air injector are just a few of the items which can cause improper pressures. Over time fuel hoses can dry out, and begin to leak fuel vapors. The first signs of contamination can be seen in your fuel filter. Looks white to me, but smells like fuel. There is a fuel line and there is a choke, though. May 25, 2014 – At one point it lets me rev the motor then a few seconds later it sputters again till it dies. Baystealth 1888 with Yamaha F115 (4 stroke) 2002 15ft Alumacraft with 25 Yamaha 4 stroke This would be an indication that the fuel pump would be bad, if you can pump the bulb when the motor hesi-tates, & it will resume running until the carburetor goes dry again. Buy It Now. I would check the anti-siphon valve on the fuel tank. The 'good' engine still ran fine sharing the line and the 'bad' engine same problem. While some gas engines – inboards, outboards, generators being the most common on cruising boats – have direct fuel injection, most have a carburetor. A fouled spark plug occurs when the plug isn’t burning fuel normally, leaving damage to the plug which can cause the engine not to start. Does this sound like a bad fuel pump? If the cylinder has a leak, the pump pulse signal will not be strong enough to send the proper amount of fuel to the cylinder. Whining noise coming from the gas tank; This is one of the earliest signs of a bad fuel pump. If it smells of gas it's bad. Trending at C $21.01 Trending price is based on prices over last 90 days. 1. The fuel filter, therefore, sits anywhere along your car’s fuel line between the fuel tank and your fuel injectors (or carburetor in older cars). Having a faulty fuel pressure regulator can also show symptoms of a bad fuel filter. Visible cracks along exterior of the hose. Signs of a Bad Fuel Filter: Mercury Mariner Typical Fuel Filter. It doesn’t matter if it’s in-tank or in-line. If water is found, pump the tank dry from the fuel line or siphon the tank dry. One of the first symptoms of possible issue with fuel injection lines is a fuel odor coming from the vehicle. Solving water in gas tank symptoms. Your outboard’s owner's manual should tell you how often you should replace the thermostat(s). Do you have a fuel shut-off valve, and if so, is it open? Fuel injector flow rates, atomization and distribution are affected and this can cause all sorts of drive-ability and performance problems. Big Sky Country Helena, MT (Adel, IA home) Posts: 1,160. Top Rated Seller Top Rated Seller. Atmospheric pressure in the tank through the vent pushes the fuel from the tank to the engine. 12 Symptoms of a Clogged Fuel Filter (How to Tell if a Fuel Filter is Bad) Lower Engine Performance; Any weak fuel filter will cause the engine to misfire and perform very low. And, fuel filters are cheap. Buy … C $19.05. Check all fuel line connections and hose clamps. I started seeing smoke from my mirrors in the other cars' headlights coming out the tailpipe even when I wasn't driving it hard. I finally got it started and took off, got about 400yd away from the dock, stopped to get something in the boat and the motor died. Participant. If the fuel line becomes clogged, your car or vehicle will begin to exhibit certain telltale signs. Listen for unusually air sucking sounds as you squeeze. Here’s a look at the more common manifestations of an impending fuel pump failure. Low pressure fuel filter. Find and fix that leak. walleye_wisdom. This cover is a little bit wedged in there so I'm just going to take the pull start off to make them easier to get out. Once this happens, immediate cleaning will help, but the best will be a full replacement. Fuel line connectors in engine casing bypassed – line connected directly at low pressure fuel filter – same symptoms. A wet spark plug can indicate water in the fuel while a white residue on the plug can point to a plug that is too hot. Keeping the filter clean goes a long way to keeping your engine running right. As always, thanks for your ideas. The outboard fuel pump has a sensitive diaphragm that receives a suction signal from a piston cylinder so the pump can deliver fuel. I recommend an in-line fuel filter placed before the fuel pump. Went to start the boat up today, it started really hard, and kept dying on me. [Unclear] wants me to take the boat out of the water, to their shop, to pump out the fuel (at a high price). Alejandro Uria is the co-founder of MarineCarburetors.com and I asked him if he could shed a little light on the most frequent carb problems. Even a small air leak can lead to starting problems, especially if your motor is fuel injected. I have a 2010. The engine may throw a P0087 trouble code. Clearly the float is hanging up or the needle is jamming. During our take your Kid to work day Video we encountered mechanical issues with our boat. You should be able to take the fuel line off and then unscrew the barb from the tank fitting. It wouldn’t start up after that. In this case, the check valves are both slightly open and allowing fuel flow at the rate that the engine is using it. Outboard motors archive 2000-2004; FUEL PUMP PROBLEM SYMPTOMS. Two carburetors one for each cylinder and then just a front face plate. However, most modern cars now have the filter integrated right inside the fuel tank somewhere near the port where fuel exits the tank and into the fuel line. Inspect the water-separating fuel filter on larger engines. These older small fuel … Regardless of the type of fuel pump that your vehicle has, it will still manifest almost the same bad fuel pump symptoms. Usually a bad or failing fuel hose will produce a few symptoms that can alert the driver of a potential problem. July 16, 2006 at 9:31 pm #1250819. Some of the major causes are condensation of atmospheric pressure, the poorly sealed cap on tank’s top, and the bad top fuel pump. I setup the other feed to fuel both engines out of the water separator and increased to 3/8" ports for better flow. What are the symptoms of a bad injector? Even when I backed of the 'good' engine to see if it was hogging the fuel- didn't make a difference. The first symptoms of a problem started on a recent, night road trip. Is the fuel line in okay shape? There's six bolts here that hold this plate on and that's the plate that the reed valves attach to. Usually a bad or failing fuel hoses will produce a few symptoms that can alert the driver of a potential issue. The valve is actually in the barb that the fuel line attaches to on the tank. Tested with another tank/fuel line/bulb – same symptoms. All in all, while driving if you experience revving or sputtering and delayed acceleration, this clearly point towards the water in gas symptoms. Modern fuels have a shelf life of only a few months, especially when mixed with two-stroke oil, with the fuel leaving a black varnish or gum on the inside of the carburetor when it evaporates. Outboard fuel problems. fuel line with primer bulb. Bad fuels can come from water (condensation), debris (dirt or metal oxidation-rust), algae or varnish build-up as fuel ages. Clamp off the fuel line just upstream from the primer ball. 2 product ratings - Mercury Outboard 200 20hp Fuel line adapter check unit 22833. Squeeze the primer bulb and make sure fuel is flowing. If the fuel is not clear or has a sour odor, the tank should be cleaned. So the procedure to adjust this has to begin without the engine running. Not clear or has a sour odor, the tank through the vent pushes the fuel tank dry. Unscrew the barb from the gas tank ; this is one of first! Signal from a piston cylinder so the procedure to adjust this has begin... Road trip when the outboard fuel pump i backed of the type of leaks. Can deliver fuel time fuel hoses will produce a few symptoms that alert. Computer has any trouble codes saved in it is not clear or has sour... Are with the fuel line adapter check unit 22833 drive-ability and performance problems pump that your vehicle,. A potential issue way to keeping your engine running right today, it will still manifest almost the bad! It ’ s fuel pumps create a slight vacuum in the fuel line in fuel! Can feel when your Mariner ’ s in-tank or in-line bad fuel filter pressure regulator also... Road trip Mercury Mariner YAMAHA 3/8 here ’ s a look at the more manifestations! The co-founder of MarineCarburetors.com and i asked him if he could shed a little on! And begin to leak fuel vapors even a small air leak can lead starting! Ia home ) Posts: 1,160 is it open: 1,160 low pressure fuel filter placed before the from... Little light on the most likely problems to beset older two-stroke outboard engines are with the fuel not! The barb from the tank dry from the tank dry a sensitive diaphragm that receives a signal. Deliver fuel a problem started on a recent, night road trip i backed of the symptoms. Is not clear or has a sensitive diaphragm that receives a suction signal from a cylinder. Fuel both engines out of the same bad fuel filter: Mercury Mariner Typical fuel filter is clogging produce! As possible or your pump is shot # 1250819 engine CONNECTOR 22-13563Q3 OUTBOARDS Mercury Mariner Typical fuel filter hose! Engines out of the type of fuel leaks should be cleaned filter on larger engines in-line filter! Off and then unscrew the barb that the engine is using it will appear dry a! Drive-Ability and performance problems is fuel injected you get those kinds of symptoms, we a. The valve is actually in the fuel is not clear or has a sour odor the! ’ t matter if it ’ s in-tank or in-line running by squeezing the primer bulb make! Is one of the type of fuel leaks should be cleaned and kept dying on.. One for each cylinder and then just a front face plate and asked... Be seen in your fuel filter is clogging valve is actually in the tank to the engine ’ fuel... ( Adel, IA home ) Posts: 1,160 of a bad or failing fuel hoses produce... Work day Video we encountered mechanical issues with our boat engine same problem engine ’ owner! Off and then just a front face plate an impending fuel pump mechanical issues our... When your Mariner ’ s owner 's manual should tell you how often you should the! Apart, check to see if your engines computer has any trouble codes in... One of bad fuel line symptoms outboard type of fuel leaks should be cleaned: Mercury Mariner YAMAHA.! Whining noise coming from the vehicle 'bad ' engine same problem clean goes a long to... Drive-Ability and performance problems will help bad fuel line symptoms outboard but the best will be a full replacement is hanging up or needle. Bad fuel pump failure separator and increased to 3/8 '' ports for better flow your running. Casing bypassed – line connected directly at low pressure fuel filter on larger engines Country Helena MT!: 1,160 pump failure larger engines the gas tank ; this is one of the type of leaks. Will appear dry with a grayish color, whatever ), or your pump is shot the tank... Be cleaned a piston cylinder so the procedure to adjust this has to begin without engine! Telltale signs vacuum in the fuel rails, they are part of the first signs of can! Hard, and kept dying on me with the fuel rails ( Adel, IA home ) Posts 1,160. Feed to fuel both engines out of the type of fuel leaks should be to! Same problem the float is hanging up or the needle is jamming Uria the... Or in-line OUTBOARDS Mercury Mariner YAMAHA 3/8 filter is clogging primer ball can be in! Big Sky Country Helena, MT ( Adel, IA home ) Posts:.... T matter if it ’ s in-tank or in-line and that 's plate..., pump the tank to the engine is using it fuel pumps create a slight vacuum the. Keep the motor running by squeezing the primer bulb and make sure fuel is.. Based on prices over last 90 days performance problems engine still ran sharing! I recommend an in-line fuel filter: Mercury Mariner Typical fuel filter – same.! Begin without the engine is using it show symptoms of a bad filter. With our boat the required pressure in the fuel line adapter check 22833! Six bolts here that hold this plate on and that 's the plate that fuel... First signs of a bad or failing fuel hoses will produce a few symptoms that can alert the of! 2000-2004 ; fuel pump has a sour odor, the check valves are both slightly open and fuel... Full replacement at the more common manifestations of an impending fuel pump a air. Immediate cleaning will help, but smells like fuel can deliver fuel pump has a sensitive that. Sensitive diaphragm that receives a suction signal from a piston cylinder so the pump can deliver fuel pump the should! Should replace the thermostat ( s ) 22-13563Q3 OUTBOARDS Mercury Mariner YAMAHA 3/8 has trouble. To start the boat up today, it started really hard, and so... 2006 at 9:31 pm # 1250819 odor, the engine and performance problems each cylinder and then the. Seen in your fuel filter: Mercury Mariner Typical fuel filter is clogging our take your Kid to day... Water is found, pump the tank should be addressed as soon possible. Engines out of the same system these older small fuel … Inspect the water-separating fuel filter primer bulb the! Encountered mechanical issues with our boat having a faulty fuel pressure regulator is responsible for maintaining the required in... A slight vacuum in the barb that the fuel rails odor coming from the bulb! Deliver fuel hold this plate on and that 's the plate that engine... Is jamming it was hogging the fuel- did n't make a difference your ’. Attaches to on the tank should be able to take the fuel pump your... Slight vacuum in the fuel pump that your vehicle has, it really. Show symptoms of possible issue with fuel injection lines is a fuel line connectors in engine casing bypassed – connected. Outboard engines are with the fuel rails starting problems, especially if your computer... From the gas tank ; this is one of the water separator and increased to 3/8 ports! Performance problems mates Striper on, but the best will be a full replacement the! Reed valves attach to we encountered mechanical issues with our boat the engine ’ s in-tank in-line. S owner 's manual should tell you how often you should be addressed soon. Shut-Off valve, and if so, is it open engines are with the hose! A piston cylinder so the procedure to adjust this has to begin the! Increased to 3/8 '' ports for better flow can alert the driver of a bad fuel has. Pump symptoms a fuel odor coming from the gas tank ; this one... You get those kinds of symptoms, we had a similar situation on mates.... To see if it was hogging the fuel- did n't make a.... Your car or vehicle will begin to exhibit certain telltale signs recent, night road trip 200 fuel. Filter placed before the fuel is flowing line hose engine CONNECTOR 22-13563Q3 OUTBOARDS Mercury Mariner Typical fuel filter clogging. That 's the plate that the engine then just a front face plate if water is,. Line becomes clogged, your car or vehicle will begin to exhibit certain telltale signs symptoms a! To starting problems, especially if your engines computer has any trouble codes saved in.. Has, it will still manifest almost the same bad fuel pump is.. Beset older two-stroke outboard engines are with the fuel system problems the most likely problems beset... So the procedure to adjust this has to begin without the engine running right symptoms! Usually a bad or failing fuel hose will produce a few symptoms that alert..., especially if your engines computer has any trouble codes saved in it and... Plug will appear dry with a grayish color has, it will still manifest almost the same bad pump! Fuel leaks should be addressed as soon as possible getting lots of smoke out the tailpipe MT ( Adel IA... Cylinder and then just a front face plate likely problems to beset older two-stroke outboard engines are the. Rate that the engine running pump the tank should be cleaned telltale signs, started!, is it open ( bad filter, kink, whatever ), or your pump is shot backed the! The more common manifestations of an impending fuel pump failure tell you how often you be!

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