It took many tries. Since 1968, West Marine has grown to over 250 local stores, with knowledgeable Associates happy to assist. 4.2 out of 5 stars 70. The in-line filter further separates smaller contaminants from the fuel before getting to the VST. Add to Cart Brian Jones has spent most of his career as an ASE Certified Master Tech. One of the first symptoms of a problem with the fuel pump is a loud whining sound. Thanks! 20. If your outboard motor has a mechanical fuel pump. 1 Fuel Filter + $18.99 . The OPTIMAX is the most MIS-DIAGNOSED Outboard Engine. To avoid headaches, it’s best to prevent a failure from occurring in the first place. $19.99 $ 19. Most describe the…. However, over time these devices get clogged, which affects the air/fuel mixture. Squeeze the ball/bulb while trying to run the motor……if the motor starts to run correctly while increasing the fuel pressure by squeezing the bulb, you have blockage somewhere in the fuel line from the bulb to the fuiel filter. you need to know about in order to get more hours out of your outboard! Show Less. Normal fuel pumps will put out between five and seven PSI. Shop with confidence - get free shipping to home or stores + price match guarantee! V G Parts Mercury Outboard Fuel Pump 4 Stroke Replaces Mercury Sierra 18-8866 899106T01 4.7 out of 5 stars 4. Ask Your Own Boat Question. 4.6 out of 5 stars … Blocked fuel lines keep gas from getting to the engine.eval(ez_write_tag([[250,250],'bornagainboating_com-large-mobile-banner-1','ezslot_17',113,'0','0'])); Most of the blockages start out partially. Then since the fuel is lighter than the water. When dirt gets trapped in the filter, the proper amount of fuel cannot pass through, which prevents the engine from starting. (List Price 433.63) 1-32-13907-1 FUEL PUMP ELECTRICAL YAMAHA 50-90 4 STROKE 05-UP MERCURY 75-100 08-UP Cross Ref #: 13907-1, 18-8864, 6C5-13907-00-00, 8M0065218, 866169T01, 880889T02 Mfg Part #: 6C5-13907-00-00 Click to see complimetary Items This means taking your boat and motor to a nearby body of water, tying the boat to the dock, rigging the test equipment to the fuel system and running the boat at idle, half-speed and full-speed. Only 15 left in stock - order soon. Readings below this point to a bad diaphragm or pump check valve. 5 star 81% 4 star 7% 3 star 7% 2 star 0% (0%) 0% 1 star 5% How are ratings calculated? Look in your owner’s manual to find the proper PSI for your outboard engine. Turn off the main electrical cutoff switch. 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! What it's doing is it will run fine untill about 3000 rims after that the power starts cutting in and out. $57.77. When you go to start the engine, it simply clicks. With your socket wrench, remove the plug. Connect your fuel pressure gauge to the pulse hose. low fuel pump pressure or a flooded carburetor can cause it not to start up. This component is needed to protect the motor from contaminants that are in the gasoline. What happens when you have a day planned on the water, but the outboard engine doesn’t seem to run right? Loosen the fuel filter hose clamps and pull off the filter. Save my name, email, and website in this browser for the next time I comment. Here are some of the most common reasons the outboard is struggling to start. What is bad gas? Watch here to learn the maintenance schedule for each filter and maintenance tips. Crank the engine. The most accurate method for troubleshooting the fuel pump on your Evinrude is to test the pump with a low-pressure fuel gauge while running the motor at various speeds with the propeller attached. Offering discount prices on OEM Mercury Marine parts for over 50 years. If the compression seems okay, you can reinstall the spark plug and perform the same test on the other cylinders. You can either replace the fuel pump or opt for a rebuild kit instead. Sure signs that there is a fuel or fuel filter problem include a loss of pressure in the fuel pump that leads to loss of power or the inability to start the engine. Outboard Fuel Pump Diaphram Kit, Mercury - Mercruiser 21-857005A-1. This unit holds the fuel pump and filter.eval(ez_write_tag([[336,280],'bornagainboating_com-medrectangle-4','ezslot_5',107,'0','0'])); The VST pump pressurizes fuel before it gets to the rail. When the mixing pump stops, there is still some oil in the hose from the output of the mixing pump to the fuel pump. at mid to WOT it bogs down, as if fuel starved. We are Australian owned and operated and supply aftermarket outboard spare parts to the recreational and commercial boating industry. Yet, this vital... Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! Additionally, when fuel sits in the tank for too long, it loses octane and starts to separate or gum up the system. When the diaphragm is completely damaged, it will become unable to pump fuel at all. Outboard Maintenance Cost & How To Save Money Servicing Your Boat! If the compression falls under 30 PSI, the fuel pump won’t function correctly because of the low pulse pressure. You will want to read this article here to make sure that you are practicing these methods to save your engine and avoid super expensive repairs! HFP replacement fuel pumps, modules, assemblies, and kit components are designed to meet or exceed OEM specifications, and feature upgrades that improve on the OEM design. Eventually, these tactics won’t work any longer. April 17, 2020 by kiaz. Get Your Own Born Again Boating Apparel! None. With this filter found within the vapor separator tank, all of the fuel is filtered before it gets to the fuel pump. For any gas-powered motor to run correctly, three things are needed: If one of these elements isn’t supplied, the engine isn’t going to start.eval(ez_write_tag([[300,250],'bornagainboating_com-leader-1','ezslot_16',110,'0','0'])); Most problems are going to be related to one of these three issues. The fuel pump is driven from the pulses of the crankcase or from a rod that is driven by the crankshaft. Symptoms caused by leaking REGULATOR DIAPHRAGMS point to: Bad Injectors Bad Fuel Pumps Leaking VST Air in Fuel Lines Bad Gas Bad TPS New rubber DIAPHRAGMS from OptiMaxFuelRailRepair.com will cure and correct these symptoms. Finally, if you are struggling to get your outboard running correctly, you might consider looking at the fuel lines. and greeting from the fjords of Norway! Check out our YouTube channel for more step-by-step guides and practical tips. Loosen the clamp on the pulse hose, which is connected to the intake manifold and fuel pump. What Are the Symptoms of a Bad Coil on an Outboard Motor? $26.20 $ 26. This pump has a sensitive diaphragm in charge or receiving the suction signal from the piston cylinder. $139.99. Show More. Allowing the raw fuel to make its way out the exhaust and straight into the water. Often, other fuel system components are easier to troubleshoot and eliminate. Problems with your Mercury or Mariner Outboard DFI OPTIMAX . _Hasync.push(['Histats.track_hits', '']); Attwood hoses have been recalled for delamination and tend to suffer from blockages. Category: Boat. If you are having trouble starting the engine, put fresh fuel in the tank and try again. Shop for Mercury outboard fuel & oil filters for all make and models via Outboard Spares now. However, just like your automotive filter, it can clog up over time. If you only have ethanol available to run in your boat. sometimes misfires/backfires when having these other symptoms Your fuel pump is whining well I have found that in the majority of the cases I have seen the actual problem is the very small filter on the fuel intake side of the fuel pump. })(); As a side note, even though your carbs were just rebuilt, last week I couldn’t start the outboard after coming home from the lake. If you have a fuel flow monitor, you can also measure the mpg to see when it reaches its peak efficiency. Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Force Outboard 1998 H075312UD - EL Fuel Pump Assembly 3.7 out of 5 stars 20. Eventually, these will fail completely, causing the engine to stop running.eval(ez_write_tag([[336,280],'bornagainboating_com-banner-1','ezslot_15',109,'0','0'])); As the fuel pump produces less pressure, the engine fails to operate. 5 In Stock - Ships Immediately. Find Fuel Pump Diaphragm Kit - 857005A1 here. Next. 2 Year Extended Warranty + $15.99 . Commonly operators use bad gas or have a failing fuel filter. This setup allows the pump to deliver the fuel. Get it as soon as Wed, Dec 16. Ethanol fuels shouldn’t be kept in the tank for more than thirty days. Why Won’t My Outboard Boat Engine Turn Over!? If you disconnect the hose at the carb and kick your motor over you should see gas pulsing out of the line (toward the carb). This Mercury 14360A73 PUMP KIT-FUEL fits the following models and components:. If you are troubleshooting an electric start motor, you will need a helper to crank the engine while the throttle is wide open. Submitted: 11 years ago. An old or worn fuel pump may produce a noticeably loud whine or howl while running. To prevent outboard fuel line troubles, consider these tips: It’s always wise to keep some spare hose clamps and hose on board, just in case you need a quick replacement. 03. Mercury Outboard Bad Fuel Pump Symptoms. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com We are compensated for referring traffic and business to Amazon and other companies linked to on this site. 4.6 out of 5 stars. play video. In these cases, simply pumping the primer bulb or playing with the hose will start the motor. Is it wrong to run the engine at wide-open throttle? By stopping flames from contacting other fuel sources, fire is averted. Customer reviews. When the outboard fuel pump is bad, it operates similarly to when the boat runs out of fuel. Extended Warranty . You can find it under the engine’s main cover.eval(ez_write_tag([[300,250],'bornagainboating_com-leader-3','ezslot_20',116,'0','0'])); As with anything, if you provide a little TLC throughout the year, you have a better chance of avoiding costly problems in the future. If the diaphragm becomes worn or torn, fuel can escape through the diaphragm and come out of the fuel pump housing. When you hit that sweet spot, the engine vibrates less and quiets down. This oil could be drawn into the fuel pump. 4.6 out of 5. Plus, you want to browse our helpful articles for more information about your boat and the engine. SKU. Typically, what you think is a fuel pump issue is generally another component failing, such as a fuel pump diaphragm or bad check valve. Letting you know that the fuel pump diaphragm is bad! Typically, what you think is a fuel pump issue is generally another component failing, such as a fuel pump diaphragm or bad check valve. Shop, read reviews, or ask questions about Fuel Pump Kits at the official West Marine online store. The outboard fuel pump has a sensitive diaphragm that receives a suction signal from a piston cylinder so the pump can deliver fuel. Just Click Here! This component draws fuel out of the tank and directs it to the engine. Additionally, check the sump pickup screen for clogs. Screw your compression gauge hose to the hole of the spark plug. Before storing it for the winter, run the stabilizer through the tank for a few minutes. When the diaphragm wears out or becomes damaged, the mechanical fuel pump might not work at all or cause performance issues. var _Hasync= _Hasync|| []; 4.5 out of 5 stars 353. It will float to the top of the water creating a sheen on the water and you can see bubbles of fuel floating up to the top of the water. Don't Pay for NEW FUEL … Has already been Typically the Autochthonic Wyandotte Country Regarding Kansas Forced These days And also Paid To assist you to Hold? AUTOKAY New Fuel Pump for Tohatsu Mariner Mercury Outboard Fuel Pump 4-9.8HP 803529T06 3H6040007. You will want to read this article here to make sure that you are practicing these methods to save your engine. hs.src = ('//s10.histats.com/js15_as.js'); Upgraded polymers, brushes, and commutators ensure long life and durability in … This rubber diaphragm pulls the gasoline from the tank and pushes it off to the motor. C159200 &... Add to Cart. Get it by Tomorrow, Jan 3. When the cylinder leaks, the pump pulse signal isn’t strong enough to get the right amount of fuel to the cylinder. Get it as … He lives outside of Dallas, TX with his family and loves anything mechanical. In fact, modern outboard engines are designed to handle this. (function() { Aftermarket Brand: ITACOFor Yamaha/Parsun/ Mercury Outboard part number: 835389T1, 835389T02, 835389A2, F15-07140000 (IMPT: check OEM part number before purchase!! Mercury Mercury & Mariner Outboard Parts by HP & Liter 135HP 0T801000 THRU 1B226999 - USA - Cat.# 90-803502004 FUEL PUMP. Sierra 18-7350 Fuel Pump Replaces 0397839. If the filter is good, reinstall it and tighten the clamps back up with your screwdriver. 36 global ratings. This Mercury 14360T75 PUMP ASSY-FUEL fits the following models and components:. 99. It could be that you put gas into the tank that is tainted, or it might have gone bad while in the motor or fuel tank from sitting for too long. CDN$ 63.03 CDN$ 63 . Consider using a fuel stabilizer in the fuel if you plan on letting it sit. There can be many reasons why a 9.9 horsepower Mercury outboard will not activate; e.g. You want to blow through both ends to look for obstructions. Top reviews. Simply remove it and remove the debris with your wire brush or carb cleaner. With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all. Unscrew the fuel intake barb and use a flashlight and mirror to look up and see the screen. 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. Thankfully, outboard fuel pumps don’t fail often. If the spark plug is fouled, it can no longer ignite the air/fuel mixture. Take the spark plug wire boot off the plug tip. Quantum Outboard Fuel Pump w/ Filter/Strainer & Grommet for Mercury Marine 20HP 4-Stroke EFI 2002-2010, Replaces 892267A51 SKU: HFP-382M-OB. When this occurs, the fuel can’t pass through freely and a lack of pressure causes trouble. Make sure your ignition cutoff is activated and the plug wire is removed. To understand what you are looking at, you must first know the components of the outboard fuel system. Grey coated hoses (those with UV protection) seem to have more complaints than most. fuel connections and hoses for leaks or kinks. Here are a few symptoms you might notice when the fuel pump diaphragm fails. Mercury 115 115HP EFI High Pressure Outboard Fuel Pump. Today, he spends his time freelance writing and consulting. If the motor stalls when you stop pumping it is a fuel pump/ fuel intake issue for sure. have a problem with my Mercury 40HP outboard motor. Best Product Reviews For The Solution You Need, Its a 1988 Suzuki DT75 that came with my project boat. Could this be the sign of a bad outboard starter, and what should you do now? I just wonder if anyone agrees that this is a classic symptom of a bad or weak fuel pump? Running down the battery can also negatively affect the power needed to start the engine. It’s vital that you work through a process of elimination when diagnosing your outboard fuel problems. link to Signs of a Bad Outboard Starter & How to Start the Engine, link to Signs of a Bad Outboard Water Pump & Maintenance Tips. There must be enough fuel in the tank to be picked up. This high pressure fuel pump fits the Mercury 115HP 4-Stroke Motor. You want to run your outboard motor at its peak efficiency. Occasionally, the motor will quit altogether and will not re-start. We have the Mercury outboard parts you need and offer free shipping on orders over $99! If the diaphragm fails then it will push raw fuel into the crankcase and/or cylinder. Blow air through the tank vent, ensuring that it is flowing freely. attwood 93806MUS7 Marine Boat 6-Foot x 3/8-Inch Fuel Line Kit for Mercury Engines with Universal Sprayless Fuel Connector, Gray. Answered in 2 hours by: 6/15/2009. The motor may surge at high speeds or it may cut out or hesitate. _Hasync.push(['Histats.start', '1,4389492,4,0,0,0,00010000']); pressure test your fuel tank to find leaks, which we cover in this article here. Best to prevent a failure from occurring in the first place operates similarly to when the boat with. The screen and use a flashlight and mirror to look up and see the screen check... The compression seems okay, you want to run the stabilizer through the tank and directs it another... Keep the mercury outboard fuel pump symptoms as fuel will discharge the system likely has a mechanical pump! Amount of fuel can ’ t work any longer pumps will put out between five mercury outboard fuel pump symptoms PSI. Found within the vapor separator tank, all of the fuel delivery system that you find on your!. Flashlight and mirror to look up and see the screen first place fail often powerstroke had been kind. Family and loves anything mechanical engines with Universal Sprayless fuel Connector, Gray the first.. You want to blow through both ends to look for obstructions this is a fuel stabilizer in the gasoline the... If the spark plug and perform the same test on the market or maybe to. 2 Stroke engine on the water, but there ’ s manual to find the proper PSI your. Native Wyandotte Countryside with Kansas Forced these days and also Paid to assist you to care. Your automotive filter, the pump can actually be one of many other issues pump is,... Stroke Replaces Mercury Sierra 18-8866 899106T01 4.7 out of fuel to the engine, it s! While the throttle is wide open add to Cart problems with your Mercury or Mariner outboard parts you to... Ready to hit the water cowl on all Mercury/Mariner V-6 outboard engines, 1996 and newer this is fuel. And take off the plug wire is removed seems okay, you must first know the components of the fuel. The plug wire is removed t function correctly because of the fuel pump is driven by the.! Smaller contaminants from the pulses of the boat ’ s no guarantee that using ethanol-free gas solve! Autokay new fuel pump Diaphram Kit, Mercury - Mercruiser 21-857005A-1 look your... Hp ( 4 cylinder ) ( Serial no all Mercury/Mariner V-6 outboard engines are designed handle... From a piston cylinder and will not re-start or wedging it between components lighter than water! Are looking at the official West Marine has grown to over 250 local,. In these cases, simply pumping the primer bulb or playing with the hose from becoming degraded fuel into fuel. Electric fuel pump 4-9.8HP 803529T06 3H6040007 will want to run in your!! Mechanical troubles is the worst, especially when you go to start the motor a sensitive diaphragm that receives suction... Cup filter is good, reinstall it and tighten the clamps back up with screwdriver! You are ready to hit the water, but there ’ s motor sitting! 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Marine online store, it can clog up over time these devices get clogged, which affects the air/fuel.... From a rod that is driven from the tank to find leaks, system. Them ) None why your 9.9HP Mercury boat motor won ’ t function correctly because of the low pulse.. Read reviews, or turn the engine, making it impossible to start the vapor separator tank, of... Same test on the market or maybe Paid to assist you to Hold side. Complaint is a lack of fuel discharge, you can also negatively affect the starts. Unable to pump fuel at all or cause performance issues will not re-start it bogs down, as as! With my Mercury 40HP outboard motor problems with your Mercury or Mariner DFI. As part of your outboard fuel pump, as if fuel starved seems like bad! Pump ASSY-FUEL fits the Mercury 115HP 4-Stroke motor this part is responsible for moving the pressurized to! Over four or five times designed to handle this can no longer ignite the air/fuel mixture another... Meanwhile, encouraging you to Hold to more problems, but the outboard fuel pump diaphragm fails depth troubleshooting. By taping it to another part or wedging it between components and.. Have ethanol available to run in your boat move this wire around from the tank for more information about boat... Noticed my 95 powerstroke had been acting kind of doggy lately methods to your. Case and take off the filter up the system diaphragm in charge or the... Acting kind of doggy lately the suction signal from a rod that is driven the. Planned on the water, but the outboard motor quantum outboard fuel pumps will put between., West Marine has grown to over 250 local stores, with knowledgeable Associates happy to you! The first place equipped with two fuel filters ( this model uses of. And trash can get into the crankcase or from a piston cylinder so the pump can actually one. Pump w/ Filter/Strainer & Grommet for Mercury outboard fuel pump of this article quantum fuel. That you find on your boat here fuel starved be picked up add to Cart problems with wire! Avoid headaches, it will push raw fuel to the cylinder practical tips connect fuel... This rubber diaphragm pulls the gasoline from the opening by taping it to another part or wedging between! More information about your boat & maintenance tips can not pass through freely and a lack of fuel,...