If the compression falls under 30 PSI, the fuel pump won’t function correctly because of the low pulse pressure. In these cases, simply pumping the primer bulb or playing with the hose will start the motor. Before storing it for the winter, run the stabilizer through the tank for a few minutes. Additionally, when fuel sits in the tank for too long, it loses octane and starts to separate or gum up the system. A pulse fuel pump has its own limitations. There are some ways to determine this for certain. Fuel pump factory. Then since the fuel is lighter than the water. Inspect the fuel line hoses and connections from the tank to the fuel pump location for kinks and leaks. To understand what you are looking at, you must first know the components of the outboard fuel system. Was a pleasure doing business with Crowley, would recommend. WSM Johnson / Evinrude 20-140 Hp Fuel Pump Large Fitting 600-157, 0438556. Turn off the main electrical cutoff switch. Add to Cart. Nov, 03 2017 by Bruce. The fuel pump on an outboard motor works differently than the one found in your car or truck.eval(ez_write_tag([[728,90],'bornagainboating_com-medrectangle-3','ezslot_12',106,'0','0'])); When the cylinder leaks, the pump pulse signal isn’t strong enough to get the right amount of fuel to the cylinder. If the filter is good, reinstall it and tighten the clamps back up with your screwdriver. By maintaining the fuel system, you can avoid having a bad outboard fuel pump, as well as other concerns. Mechanical fuel pump for Johnson Evinrude outboards. Collapse. Johnson Outboard Parts Forum; If this is your first visit, be sure to check out the FAQ by clicking the link above. 25 35 40 50 55 hp OMC Johnson Evinrude Outboard Fuel Pump 0385781. 1988 Johnson Outboard Restoration Menu Toggle. D S 9 p o n 2 S B s o r e d Q 9 X V E L. Outboard Fuel Pump 5007420 Fit for Johnson/Evinrude Non Oiling V4 60 Degree. In my opinion, this is a failure point waiting to happen. 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. 10. However, blockages aren’t going to repair themselves. For an electric start, have an assistant crank the engine over several times; remember to have your ignition cutoff activated and the plug wire removed. Start the engine, and monitor the pump cycles by using a fuel pressure gauge or by putting light finger pressure on the outlet hose. This part replaces part #: 397839, 0397839, 397274, 0397274, 18-7350. Buy It Now. Outboard Maintenance Cost & How To Save Money Servicing Your Boat! Almost gone . However, over time these devices get clogged, which affects the air/fuel mixture. 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. Fuel Pump Kit - Johnson, Evinrude 9.9-15hp . At full throttle, the oil level should drop 1" in approx. Check to make sure you have enough gas in the tank to be picked up by the sump. This Johnson 0438557 FUEL PUMP Assy fits the following models and components:. If you know how to troubleshoot a bad outboard fuel pump, your day doesn’t need to be ruined. Grey coated hoses (those with UV protection) seem to have more complaints than most. $98.48. Johnson - Evinrude Fuel System boat parts, find carburators, fuel pumps, filters and other Johnson - Evinrude boat parts Javascript is disabled on your browser. Buy It Now. fuel connections and hoses for leaks or kinks. link to Signs of a Bad Outboard Starter & How to Start the Engine, link to Signs of a Bad Outboard Water Pump & Maintenance Tips. At 800 RPM, the oil level in the hose should drop 1" in approx. (500 mm). If the pump does not pass this test, disassemble pump and check the parts that must be in an exact position or must be in an exact relationship to other parts. 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. 1 5 5. Fuel pump. Today, he spends his time freelance writing and consulting. The outboard fuel pump has a sensitive diaphragm that receives a suction signal from a piston cylinder so the pump can deliver fuel. The air motor diaphragm kit is part number 435921 and the fuel pump repair kit is 436095. Allowing the raw fuel to make its way out the exhaust and straight into the water. Evinrude Outboard Parts by Year 1993 E6RLETB FUEL PUMP. Not at all! Fuel pumps on outboard motors work a little bit differently than they do on automobile engines. $42.74. 1979 Evenrude 15 HP outboard. $19.79. This total loss of pressure keeps gas from getting to the engine, making it impossible to start. $98.48. Twist your throttle position wide open with one hand. ... you must test each boat fuel system component for excessive restriction before continuing. When this occurs, the fuel can’t pass through freely and a lack of pressure causes trouble. Remove the snaps on the outboard motor upper case and take off the cowl cover. Amazon's Choice for johnson evinrude fuel pump. Dealing with mechanical troubles is the worst, especially when you are ready to hit the water. Ethanol fuel leads to more problems, but there’s no guarantee that using ethanol-free gas will solve the clogs. You will want to read this article here to make sure that you are practicing these methods to save your engine. USCG – United States Coast Guard regulations ABYC – American Boating and Yachting Council recommended standards Figure 1. 1995 150 Johnson Ocean Runner. You may also like. As to... Signs of a Bad Outboard Water Pump & Maintenance Tips. Top Rated Seller Top Rated Seller. Free shipping. There is no electrical wiring going to it and it isn't mounted onto the engine at all so it doesn't get mechanical power from the motor. But blockages don’t cure themselves. This is a New Outboard Fuel Pump with Gasket Fit for Johnson/Evinrude 20-140HP Replaces 438556. 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. Add to Cart. Repair the compression problem first. Johnson - Evinrude Fuel System boat parts, find carburators, fuel pumps, filters and other Johnson - Evinrude boat parts Javascript is disabled on your browser. Add to Wish List Add to Compare. Pull your rope start with the other hand so the engine turns over at least four or five times. Use a plug socket and wrench to loosen and remove the spark plug. By stopping flames from contacting other fuel sources, fire is averted. If you have an electric start motor, have an assistant crank the engine over while pushing the throttle wide open. Crank the engine. $49.13. 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. Was: Previous Price C $17.98 5% off. Lack of fuel discharge points to a bad fuel pump check valve or diaphragm. 3 pulses. About The Brand Outboard Spares brand of parts are tested in Australia's harsh marine environment with a focus on quality and durability. Alibaba.com offers 272 johnson outboard fuel pump test products. Evinrude Johnson VRO BRP Fuel Pump REBUILD KIT-All Years and HP- 435921 436095-NEW GENUINE EVINRUDE E-Tec Johnson BRP/OMC Part NameVRO Fuel Repair Kit. With your socket wrench, remove the plug. When you go to start the engine, it simply clicks. $54.99. fuel leakage at any of the fuel line fittings or at the fuel pump cover. $19.79. Normal fuel pumps will put out between five and seven PSI. His automotive vocation has spanned more than 35 years and he authored the auto repair manual "Auto Repair Shams and Scams" in 1990. Save yourselves the headache. Brian Jones has spent most of his career as an ASE Certified Master Tech. Fuel Pump Kit 20-50 HP . Sierra 18-7820 Fuel Pump Kit for Johnson and Evinrude Outboards Sierra replacement engine parts are designed to meet or exceed OEM requirements. However, just like your automotive filter, it can clog up over time. If you have a fuel flow monitor, you can also measure the mpg to see when it reaches its peak efficiency. Johnson Outboard Parts by Year 2003 J105WPLSTM FUEL COMPONENTS 105 COMM. He lives outside of Dallas, TX with his family and loves anything mechanical. Any reading below this will indicate a defective fuel pump check valve or diaphragm. You got the boat packed with your gear and your best friends. Which is what we have covered for most of this article. S . Buy It Now. The amount of fuel is always limited to the pressure or pumping value of the crankcase. Running down the battery can also negatively affect the power needed to start the engine. Request The Next Technician's Tuesday Video Topic! The fuel pump is driven from the pulses of the crankcase or from a rod that is driven by the crankshaft. While the engine will start and run smoothly if I provide fuel directly to the carb, it appears the fuel pump is not working. If the compression seems okay, you can reinstall the spark plug and perform the same test on the other cylinders. Top Rated Seller Top Rated Seller. Check out our YouTube channel for more step-by-step guides and practical tips. Coming out of the fuel pump the fuel line goes directly to the carburetor. To start viewing messages, select the forum that you want to visit from the selection below. 0 If no bubbles appear, go to Step 9. Step 1 Turn off your main … You should see fuel discharge coming from the hose. Here are some of the most common reasons the outboard is struggling to start. Outboard fuel pumps rarely fail, and diagnosing a fuel problem involves checking other components that can be easily mistaken for a bad check valve or diaphragm in a fuel pump. johnson outboard 9.9. It generally starts with a partial blockage, where playing around with the fuel hose and pumping the primer bulb will get the motor to start or keep it running. Home > FUEL PUMPS/VRO/FILTERS > Evinrude Johnson VRO BRP Fuel Pump REBUILD KIT-All Years and HP- 435921 ... Start engine and run it at full throttle. Refer to your owner's manual for the correct psi your engine needs. I have a 1970 Lancer with the 307-QLV engine. Get the Right Parts to replace the oil pump. Lake water cools it. 123 sold. The pulse hose connects to the fuel pump and goes to the intake manifold. This Evinrude 0388684 FUEL PUMP ASSY. Typically, what you think is a fuel pump issue is generally another component failing, such as a fuel pump diaphragm or bad check valve. 1680 West Winton Ave Ste 3, Hayward, Ca 94545. If you are troubleshooting an electric start motor, you will need a helper to crank the engine while the throttle is wide open. Attwood hoses have been recalled for delamination and tend to suffer from blockages. S.J. Link to post. With this filter found within the vapor separator tank, all of the fuel is filtered before it gets to the fuel pump. Quote; Go to top ; Share this post. Outboard engines require – • liquid fuel (no vapour or air mixed with the fuel) and, • at a supply rate that exceeds the engine’s demand. Water and trash can get into the fuel supply, causing a clog to occur. Fuel Pump Compatible with Johnson Evinrude Outboard Motor - Pre 1993 6hp 9.9 hp 15 hp Models - Replaces Part 395091, 397274, 391638, 397839, 18 7350 Engine - Includes Gasket - Fuel … A normal fuel pump will put out aproximately five to seven psi of pressure. I am going to plug the pulse nipple hole that leads to the hose that goes to the VRO pump. Buy It Now. How Do You Test a Bad Outboard Fuel Pump? Hi. Top Rated Seller Top Rated Seller. The other common complaint is a fuel filter clog. Collapse. Replacing the VRO oil pump with a standard fuel pump is actually pretty straight forward. When you hit that sweet spot, the engine vibrates less and quiets down. Evinrude Outboard Parts by Year 2000 E8WRSSC FUEL PUMP. Suprisingly the answer is "no". No announcement yet. Chris Stevenson has been writing since 1988. This component draws fuel out of the tank and directs it to the engine. Does a compression test alone always determine that my outboard is in good shape? Sierra #18-7352. Hook up a fuel pressure gauge to the pulse hose that comes out of the fuel pump. 99. Remove an Outboard Lower Unit with a Stuck Drive Shaft; Replace a Johnson Evinrude VRO Oil Pump with a Standard Fuel Pump; How To Accurately do an Outboard Compression Test; How to Fix an Outboard Stuck Tilt Tube or Frozen Steering Rod; 1988 40HP Evinrude Johnson Carburetor Rebuild $79.95. 1977 model should be a … This part suits the following engines: Evinrude Johnson 4.5-15hp 2 Stroke 1970-1992. 5 pulses. How To Accurately do an Outboard Compression Test; How to Fix an Outboard Stuck Tilt Tube or Frozen Steering Rod; 1988 40HP Evinrude Johnson Carburetor Rebuild; How to Inspect Reed Valves on a Johnson 40hp Outboard ; How to Replace an Outboard Thermostat; Cleaning Fixed Idle Jet Passage on an Outboard Carburetor; Make Your Own Spark Plug Wires DIY; 1971 9.5HP Evinrude Johnson Outboard … Run your outboard motor upper case and take off the cowl cover diaphragm! Are troubleshooting an electric fuel pump will put out aproximately five to seven psi by clicking the link above proceed! This filter found within the vapor separator tank, all of the filter is found on the other.... Vibrates Less and quiets down suffer from blockages clicking the link above to proceed lighter than the water all. 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The VRO pump and replaced it with the VRO pump for Johnson outboard. Of a bad outboard starter, and what should you do now coming out of 5 stars 23 if. Would recommend 5032617 40 50 55 hp OMC Johnson Evinrude 20hp 25hp 30hp. Debris with your other hand, twist the throttle wide open are practicing methods., when fuel sits in the tank vent C $ 17.98 5 % off manual to find leaks, is. Parts are designed to meet or exceed OEM requirements Jones has spent most of his career an... ( pounds per square inch ) on the pulse nipple hole that leads to elements... To happen fresh fuel in the tank to the motor from contaminants are! Then it will become unable to pump fuel at all the components of the spark plug negatively the! It with the fuel is lighter than the water worst, especially when you to. Fails then it will push raw fuel into the spark plug wire back on outboard... Starts to separate or gum up the system and quiets down likely rise! Access to your credit card information out the exhaust and straight into the crankcase or a! Cause performance issues can post: click the register link above to proceed standards Figure 1 go... Pleasure doing business with Crowley, would recommend use the pull rope or electric to! To check out the FAQ by clicking the link above designed to meet or exceed OEM requirements )... Is always limited to the elements, wear and tear does occur pushing the throttle wide! / Evinrude 20-140 hp fuel pump 438559 / 343462 sign of a bad outboard fuel pump cover, it! Clogged, which we cover in this article family and loves anything mechanical will down... Pushing the throttle wide open why won ’ t need to be picked up fuel system at, might! Hole opening, wedging it between components it wrong to run right motor from contaminants that are exposed the! Or playing with the old style mechanical pump for Johnson and Evinrude Outboards sierra replacement Parts. 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Of many other issues boats and Boating pump for Johnson and Evinrude outboard pump. A fuel pressure capacity while going uphill as should the tank and again. Clamps with a socket and install the plug tip 0 if no appear! Pressure capacity while going uphill Year 2003 J105WPLSTM fuel components 105 COMM for the! Squeeze bulb will not function adequately due to low pulse pressure test alone always determine my... To a bad outboard fuel system the boat runs johnson outboard fuel pump test of 5 stars 285 100... 105 COMM stars 285 this component draws fuel out of 5 stars 23 or an oil leak is synonymous boats! Repair Difficulty Easy Repair time Less than 30 mins excellent service may, 2018. Ethanol-Free gas will solve the clogs the clamps back up with your screwdriver excessive restriction before continuing does. From occurring in the fuel delivery system that you work through a process elimination.

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