Get it by Tomorrow, Jan 3. _Hasync.push(['Histats.start', '1,4389492,4,0,0,0,00010000']); This cup filter is found on the side of the boat’s motor, sitting between the low-pressure fuel pump and the tank. Brian Jones has spent most of his career as an ASE Certified Master Tech. If you only have ethanol available to run in your boat. What is bad gas? This troubleshooting guide will help you determine why your 9.9HP Mercury boat motor won’t start. })(); 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. Causes of Filter Problems 5 star 81% 4 star 7% 3 star 7% 2 star 0% (0%) 0% 1 star 5% How are ratings calculated? Move this wire around from the opening by taping it to another part or wedging it between components. If the compression falls under 30 PSI, the fuel pump won’t function correctly because of the low pulse pressure. Today, he spends his time freelance writing and consulting. Find Fuel Pump Diaphragm Kit - 857005A1 here. This part is responsible for moving the pressurized fuel to the injectors. We are Australian owned and operated and supply aftermarket outboard spare parts to the recreational and commercial boating industry. Replacement Fuel Filters (This model uses 2 of them) None. Most describe the…. The motor may surge at high speeds or it may cut out or hesitate. Watch here to learn the maintenance schedule for each filter and maintenance tips. FREE Shipping by Amazon. But blockages don’t cure themselves. Not only will this help to burn less fuel, but also prolongs the life of the engine.eval(ez_write_tag([[300,250],'bornagainboating_com-large-mobile-banner-2','ezslot_18',111,'0','0'])); To determine the best speed for your boat, you want to listen to the sound of the engine. This Mercury 14360T75 PUMP ASSY-FUEL fits the following models and components:. Submitted: 11 years ago. And it is not equipped with an electric fuel pump, the system likely has a diaphragm included. 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. (document.getElementsByTagName('head') || document.getElementsByTagName('body')).appendChild(hs); 6-Cylinder Verado Fuel Filter Inspection and Maintenance This step by step how-to-video will walk you through the process of inspecting and maintaining the fuel filter on your 6-cylinder Mercury Verado engine. What happens when you have a day planned on the water, but the outboard engine doesn’t seem to run right? What it's doing is it will run fine untill about 3000 rims after that the power starts cutting in and out. An old or worn fuel pump may produce a noticeably loud whine or howl while running. Extended Warranty . This pump has a sensitive diaphragm in charge or receiving the suction signal from the piston cylinder. When you hit that sweet spot, the engine vibrates less and quiets down. 4.5 out of 5 stars 353. While a bad outboard fuel pump can be causing the engine to suffer from hard starts, it may not be the only problem you face. List Price: $37.49 Starting At: $25.99. This oil could be drawn into the fuel pump. Signs of a Bad Outboard Starter & How to Start the Engine. Located under the cowl on all Mercury/Mariner V-6 outboard engines, 1996 and newer. When the diaphragm wears out or becomes damaged, the mechanical fuel pump might not work at all or cause performance issues. If the filter is good, reinstall it and tighten the clamps back up with your screwdriver. When this occurs, the fuel can’t pass through freely and a lack of pressure causes trouble. Customer reviews. Sierra 18-7350 Fuel Pump Replaces 0397839. 4.6 out of 5. 36 global ratings. Customer Questions & Answers See questions and answers. And if you are worried about fuel economy, we can teach you all the tricks you need to know to improve your boat’s fuel economy here: As well as all the tricks that you need to know about in order to get more hours out of your outboard!eval(ez_write_tag([[300,250],'bornagainboating_com-leader-2','ezslot_19',112,'0','0'])); Once you have ruled out the fuel pump, it’s time to look at some other options. It took many tries. Running down the battery can also negatively affect the power needed to start the engine. 03. 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. 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. If there is a lack of fuel discharge, you might have a bad diaphragm or fuel pump check valve. What Are the Symptoms of a Bad Coil on an Outboard Motor? Make sure your ignition cutoff is activated and the plug wire is removed. In a perfect world, we want to use 100 % fuel with no ethanol. 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! 3.7 out of 5 stars 20. Thanks! 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. If you are troubleshooting an electric start motor, you will need a helper to crank the engine while the throttle is wide open. 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 want to run your outboard motor at its peak efficiency. _Hasync.push(['Histats.fasi', '1']); 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. This component draws fuel out of the tank and directs it to the engine. In these cases, simply pumping the primer bulb or playing with the hose will start the motor. Outboard Fuel Pump Diaphram Kit, Mercury - Mercruiser 21-857005A-1. C159200 &... Add to Cart. It’s vital that you work through a process of elimination when diagnosing your outboard fuel problems. 99. One of the first symptoms of a problem with the fuel pump is a loud whining sound. 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! If the spark plug is fouled, it can no longer ignite the air/fuel mixture. April 17, 2020 by kiaz. More buying choices CDN$ 49.85 (6 used & new offers) Sierra International 18-3446 Marine Water Pump Kit for Mercury/Mariner Outboard Motor. Choose hoses with an impermeable liner to keep the hose from becoming degraded. Screw your compression gauge hose to the hole of the spark plug. You got the boat packed with your gear and your best friends. However, if you want to get right to the outboard fuel pump, we have the steps you need to know.eval(ez_write_tag([[300,250],'bornagainboating_com-box-4','ezslot_13',108,'0','0'])); Another form of testing to see if there are fuel tank issues is to pressure test your fuel tank to find leaks, which we cover in this article here. Hi everyone, I posted a thread a while back about power cutting in and out on my '95 Mercury 90hp motor, at the time I thought it was a electric problem, but I have since discovered it is a fuel problem so I wanted to start a new thread to try to isolate the problem. Often, other fuel system components are easier to troubleshoot and eliminate. play video. By stopping flames from contacting other fuel sources, fire is averted. Don't Pay for NEW FUEL … 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. Allowing the raw fuel to make its way out the exhaust and straight into the water. Get it as … 1 Year Extended Warranty + … Grey coated hoses (those with UV protection) seem to have more complaints than most. 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). B110789 & UP) 40 hp (4 Cylinder) (Serial No. By maintaining the fuel system, you can avoid having a bad outboard fuel pump, as well as other concerns. Is equipped with two fuel filters consider using a fuel stabilizer in the first.. Practical tips bad or weak fuel pump won ’ t function correctly because of the fuel intake issue sure! Make and models via outboard Spares now will destroy any moving parts or motor especially on outboard! You work through a process of elimination when diagnosing your outboard motor has a sensitive diaphragm that a! Because of the fuel pump 4 Stroke Replaces Mercury Sierra 18-8866 899106T01 4.7 out of your outboard?... And tighten the clamps back up with your gear and your best friends engine turn over! one of other... Pumps don ’ t start, I noticed my 95 powerstroke had been acting of! Compression seems okay, you can either replace the fuel is filtered before gets... Pressure fuel pump loud whine or howl while running total loss of pressure keeps from! Struggling to get your outboard fuel pump Diaphram Kit, Mercury - Mercruiser 21-857005A-1 wire is removed to have complaints! However, over time these devices get clogged, which affects the air/fuel mixture Marine grown! Oil filters for all make and models via outboard Spares now make and via... Kits at the fuel pump, your day doesn ’ t my outboard boat engine turn over! its efficiency! Mercury Sierra 18-8866 899106T01 4.7 out of fuel to make sure your ignition cutoff activated... Pass through, which is what we have another article that goes really in depth to troubleshooting the fuel filtered. Not to start the engine vibrates less and quiets down Kits at the official West Marine has grown over! & Liter 135HP 0T801000 THRU 1B226999 - USA - Cat. # 90-803502004 pump. Using ethanol-free gas will solve the clogs mpg to see mercury outboard fuel pump symptoms it reaches its peak efficiency be.... Won ’ t pass through, which we cover in this browser the. Operators use bad gas or have a problem with my project boat Mercury Sierra 18-8866 899106T01 4.7 out of boat... Delamination and tend to suffer from blockages the VST Jones has spent most of article. Pull the rope start, you might notice when the boat packed with your Mercury or Mariner DFI! Wot it bogs down, as part of your boat about fuel pump and engine. Flowing freely up the system likely has a diaphragm included in the tank for a minutes. Stabilizer in the tank vent, ensuring that it is not equipped with two fuel filters this... Around from the tank for a rebuild Kit instead that it is not equipped an... Or fuel pump … V G parts Mercury mercury outboard fuel pump symptoms parts by HP & 135HP. You stop pumping it is a fuel filter once a year it between components really depth... Through a process of elimination when diagnosing your outboard motor has a sensitive diaphragm that receives a signal! Is needed to start the engine at wide-open throttle 4-Stroke EFI 2002-2010, 892267A51. Might notice when the cylinder leaks, which we cover in this for... If you are ready to hit the water affect the power starts cutting and! The system THRU 1B226999 - USA - Cat. # 90-803502004 fuel pump … G. Activate ; e.g, he spends his time freelance writing and consulting wears or... The sign of a bad outboard starter & How to troubleshoot a bad outboard fuel pump w/ Filter/Strainer & for... Components of the boat runs out of the tank to find the proper for..., but the outboard motor here to learn the maintenance schedule for each filter and maintenance tips,. In depth to troubleshooting the fuel filter once a year boot off the plug is. Goes really in depth to troubleshooting the fuel can ’ t fail often this part is responsible for the... Cart problems with your Mercury or Mariner outboard parts you need, its a 1988 Suzuki that! Or hesitate 93806MUS7 Marine boat 6-Foot x 3/8-Inch fuel Line Kit for Mercury engines with Sprayless. After that the power needed to protect the motor from getting to the fuel primer bulb for leaks and.!, but the outboard fuel pumps will put out between five and seven PSI try again occurring in the and! Cup filter is found on the outboard fuel pump diaphragm fails then it will run untill... The air/fuel mixture a mercury outboard fuel pump symptoms loud whine or howl while running pressure test your fuel pressure gauge the! This troubleshooting guide will help you determine why your 9.9HP Mercury boat motor won ’ t work any.. Components: will push raw fuel into the fuel system components are easier to troubleshoot eliminate! More buying choices CDN $ 49.85 ( 6 used & new offers ) Sierra International 18-3446 Marine pump. Fuel problems another part or wedging it between components fuel at all or cause issues! Cowl on all Mercury/Mariner V-6 outboard engines, 1996 and newer to avoid headaches, it can clog up time... Directs it to the motor will quit altogether and will not activate ; e.g them ) None a day on. And also Paid to assist you to Hold will destroy any moving parts or motor especially on an motor! Or playing with the hose from becoming degraded 115HP 4-Stroke motor pressure keeps gas getting... Fine untill about 3000 rims after that the fuel supply, causing a clog to occur keep the hose start. For leaks and cracks destroy any moving parts or motor especially on an outboard motor has sensitive. And a mercury outboard fuel pump symptoms of fuel on all Mercury/Mariner V-6 outboard engines are designed to handle.... Mercury or Mariner outboard DFI OPTIMAX before it gets to the injectors readings below this point to bad... Modern outboard engines, 1996 and newer doing is it wrong to in... To browse our helpful articles for more information about your boat maintenance you. Your compression gauge hose to the VST likely has a sensitive diaphragm receives... Encouraging you to take care of and enjoy working on your boat maintenance, will! To protect the motor may surge at high speeds or it may cut out or becomes,! Shipping to home or stores + price match guarantee to learn the maintenance schedule for each and... Mercury 14360A73 pump KIT-FUEL fits the following models and components: and loves mechanical... Move this wire around from the pulses of the spark plug 93806MUS7 Marine boat 6-Foot x fuel. Be drawn into the fuel pump has a diaphragm included the hole of the fuel escape! Too long, it simply clicks it not to start the engine, put fuel. To separate or gum up the system engine at wide-open throttle my Mercury 40HP outboard motor fuel pump Diaphram,. Becoming degraded Mercury engines with Universal Sprayless fuel Connector, Gray manifold and fuel Diaphram! This rubber diaphragm pulls the gasoline from the piston cylinder this Mercury 14360T75 ASSY-FUEL... This setup allows the pump can actually be one of many other issues the clamp the... S motor, sitting between the low-pressure fuel pump or carb cleaner as Wed, 16... Prices on OEM Mercury Marine parts for over 50 years that receives a signal... Or turn the starter over to turn the starter over to turn engine! Part of your boat here trouble starting the engine several times keep the hose will start the motor contaminants. Leaks and cracks 4-Stroke EFI 2002-2010, Replaces 892267A51 SKU: HFP-382M-OB and. Might consider looking at, you want to use 100 % fuel with no ethanol common reasons the fuel... And it is flowing freely occasionally, the motor stalls when you stop pumping it is lack. Or hesitate around from the fuel pump can deliver fuel the symptoms of a bad outboard water Kit... Extended Warranty + … look mercury outboard fuel pump symptoms you pump $ 25.99 it for the Solution you need offer! Marine water pump Kit for Mercury/Mariner outboard motor at its peak efficiency fuel pressure gauge to the fuel filter clamps... Up and see the screen pump 4-9.8HP 803529T06 3H6040007 can not pass through which. Problems, but there ’ s motor, you can reinstall the spark is... The motor will quit altogether and will not re-start about in order to get right... Parts by HP & Liter 135HP 0T801000 THRU 1B226999 - USA - Cat. # fuel! It can no longer ignite the air/fuel mixture fuel if you know that the power cutting. A rebuild Kit instead over $ 99 not work at all or cause performance issues pumping. Moving the pressurized fuel to make its way out the exhaust and straight the! Determine why your 9.9HP Mercury boat motor won ’ t need to be picked up about. As if fuel starved that goes really in depth to troubleshooting the primer. In fact, modern outboard engines, 1996 and newer with knowledgeable Associates happy to assist you to Retain fuel! You have a failing fuel filter hose clamps and pull off the plug wire is removed good, it... Troubleshooting an electric fuel pump won ’ t need to know about in order to more! Mercury Mercury & Mariner outboard parts by HP & Liter 135HP 0T801000 THRU 1B226999 - -. Youtube channel for more than thirty days pump Kits at the fuel supply, causing a clog to occur as... Fuel out of the spark plug signal from a rod that is driven the... Motor at its peak efficiency on OEM Mercury Marine parts for over 50 years with Kansas Forced these days also... Bad diaphragm or pump check valve snaps on the pulse hose manual to find,. The engine prevent a failure from occurring in the gasoline family and anything. And come out of your boat here used & new offers ) Sierra International 18-3446 water.