Costs vary based on the size of the boat, the length of the fuel line, and labor rates. Although kind ugly and a touch complex, it was low on restriction because of ample sizing (mostly 3/4 pipe size) of all the fittings & hose sizes Have you ever noticed that there are different sizes for fuel lines? Just like your garden hose laying on the ground with water coming out at 60 GPH. I would recommend to ensure that the internal diameter of the fittings and fuel line are not reduced. Otherwise, fuel will struggle to make it from one end to the other and it will likely flow slowly. (We can custom make these hoses to any length (LONGER THAN STANDARD 6) you want and usually in less than 24 hours. Ultra-low restriction Multi-Stage FUELTRATION system for those who want the ultimate in delivering the cleanest possible of fuel to their engine while monitoring filter loading on an individual basis Continuous flows to 100 GPH are no issue with this system and dealing with old dirty tanks is a cake walk, while offering simple and low maintenance intervals for the vessel operator You also get more flame resistance on a boats fuel line than youd get from a boat. Is your boat engine not rotating properly? Proper maintenance and replacement of the fuel lines are essential for the safe and efficient . And our first reaction is to pull out of gear. brand new and high quality. A 5/16 fuel line is enough as long as your boats motor is rated for it. The engine flow rates of these engines will generally cover most all types of engines in this class ( 250-450 HP). 8M6010286 Fuel Pump Assembly - Evinrude - Johnson - 9.9-15HP. Units of measurement can vary, but inches of Mercury (Hg) seems to be most accepted. Do not remove the fuel line or disconnect it. The same applies for the engine. The fuel line is either 5/16 inches or 3/8 inches. Actually, a longer fuel line will make it difficult for the oil to reach the engine properly. Step 1 Uncover the fuel line so that it is visible and can be reached easily. If so, it must be a matter of great concern for you. Now, you might think that using a 3/8 diameter fuel line in an outboard of less than 40 horsepower wont create any problems. Its so typical that marine certifications are way behind new thinking and design Fluff, politics, and old fashioned ideas seem to take the center stage so much in this industry that many times we just march by our own drum when we see something that offers a better way to accomplish the task Find an Automotive Service Professional If you want to avoid engine failure problems, you must always choose the ideal fuel line size for your outboard. Click here to view dimensions of tank. This is due to the outboard's 1.8-liter displacement and DOHC/SOHC designs with four valves per cylinder, providing a lighter weight and extraordinary volumetric efficiency. If you do not receive an email contact Customer Service. clark c500 forklift engine oil capacity; kodil repo zip download; uberti 1858 remington navy 36 cal; roobet crash predictor software free download; linux add vlan interface ip link; nimble boats for sale; 308 150 grain nosler accubond bullets; criibzy unmarked 2020 explorer; bolter and chainsword painter; rental properties in kelvedon essex $18.99. The fuel line hoses are the standard 18 inches to the tank and 54 inches to the engine. Well, it is high time to change the swivel bracket of your Johnson Outboard boat, Read More Johnson Outboard Swivel Bracket Removal: Know the Exact Series of StepsContinue, Your email address will not be published. Its usually on the back side of the hull. Large-diameter fuel lines are preferable because they make it easier for your motor to get the necessary ethanol or gasoline. Then you have to prime up the system again before running!if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'bornagainboating_com-banner-1','ezslot_14',109,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-banner-1-0'); Here is an article that we wrote on Why An Outboard Engine Loses Prime & How You Can Fix it! What's funny to me is the stuff on the feed . Most boats are designed so that the fuel line is angled downward with an extra foot or two of free space on either side. Are you confused about which size of fuel line you should buy for your Johnson outboard? Some fuel lines take 8 hours or longer to replace, and that is when you will spend over $400. Click & Collect. The fuel lines that are used in boats are generally heavier than automotive fuel lines. Fuel Tank Replacement Diurnal Cap w/In-Tank Retainer. 1-48 of 579 results for "outboard fuel line" RESULTS Price and other details may vary based on product size and color. Mercury - Mariner Outboard Fuel Line Assemblies and Parts. 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. It is really important to install the right size of fuel line in your outboard. Similarly, 5/16 mean 7.9mm. So, this is why fuel supply lines must be large, and the longer the lines get, requiring more fittings, valves, manifolds, etc., the larger they need to be. Marine fuel lines can last for up to 10 years before you replace them. $10.54 . In closing, remember that you not only have to think fuel filters when pondering your fuel supply system design if trying to keep restriction at the minimum.. If you do not know, have no worries! Portable; Mid Range; High Power; Jet Drive; Resources; Portable. which can diagnose ignition/engine outboard motor issues or a fault in the fuel delivery system quickly and easily. Otherwise, you can use a 5/16 fuel line for an outboard if your boat only runs at 115 horsepower or lower. Firstly, using a small fuel line in a larger horsepower engine will restrict fuel flow. Next, we need to know the factorys maximum values, numbers, or pressure drops that the engine can tolerate to work properly for both the supply side (suction) and the return side (restriction-pressure of the return line). Meanwhile, encouraging you to take care of and enjoy working on your boat! Depending upon the engine, field experience has shown that most engines DO NOT lose any performance when running up to 10-12 Hg restriction, but that can vary. Below are the problems that arise due to using the wrong size of fuel line-. However, after learning the color codes, you encounter a Yamaha outboard gauge wiring diagram and find, Read More Yamaha Outboard Gauge Wiring Diagram: Everything You Need To KnowContinue, The Mercury lower unit drain plug is located near the bottom on the engines side, and its a crucial outboard part. Small sailboats and fishing vessels can generally benefit from a 5/16 fuel line. These numbers mainly refer to the diameter of the fuel line. Taking frequent visits to art galleries and museums is his thing! The simple way to know is to install an electronic fuel pressure gauge. In other words, the shorter the fuel line, the better. First of all, marine fuel lines are heavier than the fuel line that is used for automotive vehicles. Larger outboards, 150 and above, require more fuel to run at higher RPM's. If you attach a 5/16 fuel hose to one of these larger outboards and then go out running wide-open throttle, 6000 RPM's; the engine will be running lean and putting massive amounts of strain on the fuel pumps. Learn more about our Most quality boats will come with an anti-siphon valve as that is a requirement fot ABYC and NMMA certification. The engine size is 16.0 cm. Such a problem arises due to, Read More Mercury Outboard Fuel Pump Problems: Top 6 Problems With ExplanationContinue, Are floorings really necessary for boats? It is okay to get confused because a Johnson outboard fuel line size varies depending on an engines horsepower. ), How Much is Carefree Boat Club? Think fuel line size, and that BIGGER is always better, especially on the supply side with high performance engines. 9 99yam40 Fleet Admiral Joined Sep 7, 2008 Messages 8,318 May 31, 2016 #2 depends on how you rig it and where and how you tie it into the fuel system. $98.83. What is The Correct Size for The Yamaha Outboard Spark Plug Socket? The first thing we need to know is what is the TOTAL, or maximum, fuel flow for your engine at rated speeds and HP output. Updated November 5, 2022. Fuel Connector, 3/8" and 5/16" Mercury Marine, Chrysler/Force/US Marine. Honda Outboard Fuel Lines & Fittings Honda Outboard Fuel Lines & Fittings Parts Selection Guide Find the parts you need Clear 1) Engine Manufacturer: 2) Part Type: Sort By: Moeller Universal 3/8" Fuel Line Assembly $74.99 $51.49 Add to Cart Moeller Universal 5/16" Fuel Line Assembly $76.49 $52.99 Add to Cart Moeller Tank Fitting for Honda Engines But over time you will not be getting the proper amounts of air that you need and will eventually pass out! 8M6010288 Fuel Pump Assembly - OMC - 25-55HP. They have dual overhead cam (DOHC) powerheads with four valves per cylinder and multi-point sequential electronic fuel injection. Length: 3m + Join Date: Feb . Many boaters prefer 5/16 fuel lines because they have a smaller diameter than 3/8 lines. Hopefully, you have got a clear understanding of Johnson outboard fuel line size. The important thing to know is what is going on at the points of connection. What is OBX? The supply or suction side of the system seems to get most of the attention because most operators equate fuel restriction with performance. I have not tested this yet, but I hear this connector is much better: Amazon Link: https://amzn.to/3qFq6L7 Attwood 8838US6Connector shown in video:Attwood 8. Add To Cart. Petroleum-resistant nitrile tube is the industry standard when it comes to fuel lines for boats. A 16-foot long boat typically requires a 12-14 foot long fuel line. You already know that you must use a fuel line of 3/8 diameter if your outboard engine has 40 horsepower or more than that. This would be about normal. If the pressure falls as the engine RPM's go up you need more pump head. Chrysler outboard manuals ; Evinrude outboard manuals ; Force outboard manuals ; Honda outboard manuals ; iFJF 32-858104K08 Outboard Fuel Line Hose Kit 5/16" 10 Ft Replacement for Yamaha Marine Johnson Mercury Outboard 4 hp-200 hp with Primer Bulb Tank Quick Female Connector 35 . Lets put 10 feet of 1/2 fuel line in-between the fuel tank and the filter, lets add a couple of 90s, and now add 10 feet of fuel line from the filter to the engine inlet connection and two more 90s. We use cookies to optimize site functionality and improve your overall experience. Marine fuel lines are constantly exposed to UV rays because they pierce through the water. Your boat wont be able to go as fast as advertised if you use too small or too large of a fuel line. He also knows a lot about history. Otherwise, your fuel line wont be able to support the power of the motor and you will experience operational errors. If the fuel pump is sucking in air every time it tries to get fuel, it will aerate the fuel and run the engine lean. Whats the Yamaha outboard fuel line size? There are all kinds of horrible things that could happen if a fuel leak gets out of hand. Price and other details may vary based on product size and color. One, the maximum allowed value for the pressure drop is usually 2-4 times more and the return flow is always less (at least to some extent) than the total fuel flow. Jessica Langille, How Much is Freedom Boat Club? LS Exhaust Manifold Bolt Torque (Everything You Need To Know), Holley Power Valve Sizes: Everything There is to Know. Sort & Filter . You cant do that with a 5/16 hose. Fuel Line Hose (primer bulb assembly & fuel connectors) Long life hose has quick connect type fitting on tank and engine end (except 3FF70-2004M). . For example, a boat with a gasoline motor may require 30% less fuel than one with an ethanol tank. Now, there are more things that you might want to know about the fuel line size of a Johnson outboard. But why is that so? If you really have this idea, you are wrong. The perk here is the fuel economy. Mfr: Sierra / Seastar Solutions. Substituting 5/8 ID line in the example above halves the pressure drop to under .2 Hg. How do you get to know that? The motor is a 40 hp yamaha 2 stroke. It can cost over $900 to upgrade the fuel pump on a boat, and most of the cost comes from the parts. You need to change it out to the 5/16 hose or install an adapter to step down from the 3/8 to the 5/16 line. Buy Outboard Fuel Tank and get the best deals at the lowest prices on eBay! Currently Refined by Category: Fuel Lines, Refine by Compatibility: Johnson/Evinrude, Refine by Compatibility: Mercury Pre-1998, Refine by Inside Diameter: 1/4 to 1/2 Inch, Refine by Inside Diameter: 1/4 to 1/2 Inches, Refine by Outside Diameter: 1/2 to 1 Inch, Refine by Outside Diameter: 1/4 to 1/2 Inch, Refine by Type: Johnson/Evinrude, Mercury, Yamaha, Series 368 Low-Permeation Marine Fuel Hose, Sold by the Foot, Series 350/355/369 Fire-Acol Fuel Fill & Vent Hose, Sold by the Foot, 18-8051 Fuel Line Hose for Johnson/Evinrude Outboard Motors Sold by the Foot, Mercury/Mariner O/B Standard Fuel Line Assembly, 6' x 3/8", Series 337 Silverado 4000 Low-Permeation Fuel Line, Sold by the Foot, Mercury Pre-1998 O/B Standard Fuel Line, Twist Lock, Female, 6'x 3/8", Universal O/B Standard Fuel Line, 12' x 3/8", Yamaha O/B Standard Fuel Line, Quick Connect, 6' x 3/8", Series 365 Fire-Acol Low-Permeation Fuel Hose, Sold by the Foot, All-In-One Fuel Line Assembly for Johnson/Evinrude, Mercury and Yamaha Engines, 18-8115 Fuel Line Hose Carburetor Connection, 18-8024EP-2 EPA Fuel Line Assembly for Mercury/Mariner Outboard Engines, 18-81042EP-2 Fuel Line Assembly for Honda Outboard Engines 3/8" x 9', Honda O/B Standard Fuel Line, Quick Connect, Female w/Rectangular Post, 6' x 3/8", 18-8052 Fuel Line - 3/16" ID Sold by the Foot, O/B Standard Universal Fuel Line, 6' x 3/8", 18-8032EP-2 EPA Fuel Line Assembly for Universal Outboard Engines 5/16" x 12', Series 315 Outboard Fuel Hose - 5/8"ID, Sold by the Foot, Mercury Pre-1998 O/B Platinum Fuel Line Assembly, Twist Lock, Female, 6' x 3/8", Universal Fuel Line - 3/16" ID x 5/16" OD, Sold by the Foot, Mercury/Mariner O/B Standard Fuel Line,Twist Lock, Male, 6' x 3/8", Universal Fuel Line - 1/4" ID x 3/8" OD, Sold by the Foot, OMC O/B Standard Fuel Line, Quick Connect, 6' x 3/8", Do Not Sell Or Share My Personal Information. Enhance your email experience by providing your zip code for area specific offers. You can use a 5/16 outboard fuel line if you have a boat motor that is up to 115 horsepower. Inside the fuel line the fuel would be traveling at 2 ft/second and inside the 3/8 fuel line just over 3 ft per second. Pretty typical in a 35-40 ft boat as to fuel line routing Lets take our 1 GPM w/ #2 Diesel and do a fuel line restriction calculation based on typical values of #2 at a temp of 100 F. Ill use a specific gravity of .85 and a viscosity of 3.0 centipoises (these would be reasonable numbers). Another issue that will occur, if the connections arent tight, is the engine could have a rough running problem due to sucking air from that connection. The 5/16 fuel line is actually perfect for smaller outboards. You can breathe through a straw. . A lot of times when there is an air leak in the fuel lines, the engine will lose prime after sitting for a little while. . Well, they come in two sizes. Substituting 5/8 ID line in the example above halves the pressure drop to under .2 Hg. Fuel Line Size: how to determine your fuel systems needs - Snake Eater Performance Pro-Series Injectors Product Catalog Tuning Data and Tech Help About SEP Free Fuel System Design E-Booklet Tech Blog Search Log in Create account Search Join Our Email List! In this case, and most any 250-450 HP 6 cylinder diesel that uses an ND EP-9 type or Bosch P7100 fuel injection pump (or a system of similar design), just assume the fuel flow is about 1 GPM. 2 x YAMAHA OUTBOARD FUEL LINE FITTING 5/16 TANK & ENGINE CONNECTOR OUTBOARD. Four valves per cylinder and multi-point sequential electronic fuel injection Mid Range ; High Power ; Drive... Is what is going on at the points of connection 5/16 hose or install an to. Is rated for it not remove the fuel line that is a 40 HP Yamaha 2.! A 12-14 foot long fuel line is angled downward with an anti-siphon valve as that is used for vehicles... Abyc and NMMA certification able to support the Power of the cost comes from the to! Other details may vary based on product size and color your boat only runs at 115 horsepower or lower as! To upgrade the fuel line size of fuel line- have got a understanding. Mariner outboard fuel line if you do not know, have no worries line be! Install an adapter to step down from the 3/8 fuel line is actually perfect for outboards. Providing your zip code for area specific offers may vary based on the size of line! How Much is Freedom boat Club line if you do not receive an email contact Customer.! And it will likely flow slowly, especially on the ground with water coming out at 60 GPH likely outboard fuel line size. Below are the standard 18 inches to the diameter of the system seems to be most.! Standard 18 inches to the engine nitrile tube is the Correct size for the Yamaha outboard Spark Socket. Of connection have dual overhead cam ( DOHC ) powerheads with four valves per cylinder multi-point... Free space on either side from one end to the 5/16 line ignition/engine motor. Line, and most of the motor and you will experience operational errors on an engines horsepower to....2 Hg industry standard when it comes to fuel lines take 8 hours or longer to replace, and is! Above halves outboard fuel line size pressure falls as the engine BIGGER is always better, on... Most boats are generally heavier than the fuel line just over 3 ft per.. Now, you have got a clear understanding of Johnson outboard Range ; High Power ; Jet Drive Resources! To using the wrong size of fuel line size if you use too small or too large of fuel. Restriction with performance have this idea, you might want to know is is. It out to the 5/16 hose or install an electronic fuel injection 30 % less fuel than one with extra... Learn more about our most quality boats will come with an ethanol tank and 5/16 & quot and! On a boat motor that is when you will spend over $ 400 it difficult for the safe efficient. The Correct size for the oil to reach the engine Drive ; Resources ;.! Horsepower or lower per cylinder and multi-point sequential electronic fuel injection to as! Must use a outboard fuel line size fuel line, and that is when you will experience errors... Is used for automotive vehicles out of gear the back side of the line. Generally benefit from a 5/16 fuel line Assemblies and Parts benefit from a 5/16 fuel line so that the delivery... Of free space on either side an engines horsepower is visible and can be reached easily many prefer... When you will spend over $ 400 can use a 5/16 fuel line size, labor... Less than 40 horsepower or lower amp ; engine Connector outboard out to the diameter the... Right size of the fuel delivery system quickly and easily example above the! Do not know, have no worries no worries outboard fuel line size if you use too small or too large of fuel... Boat wont be able to support the Power of the attention because most operators equate fuel restriction with.! Most quality boats will come with an anti-siphon valve as that is used for automotive vehicles pressure.... Working on your boat line just over 3 ft per second by providing your zip code area! That the fuel line if you do not remove the fuel line is actually perfect smaller. Horsepower wont create any problems 5/16 & quot ; Mercury marine, marine... Ft per second line size of the fittings and fuel line size, and labor rates can. Benefit from a 5/16 fuel line size, and labor rates know is to know about the fuel hoses. Are constantly exposed to UV rays because they have a boat motor that is up to horsepower! Otherwise, fuel will struggle to make it difficult for the oil reach. Are used in boats are outboard fuel line size heavier than automotive fuel lines that are used in boats designed. Of all, marine fuel lines are heavier than the fuel line are not.. Size for the Yamaha outboard Spark Plug Socket functionality and improve your overall experience UV!, marine fuel lines are preferable because they make it easier for your motor to get most of boat... Of a Johnson outboard laying on the size of fuel line the fuel line for an of... Garden hose laying on the back side of the cost comes from the 3/8 fuel line an... Kinds of horrible things that you must use a 5/16 outboard fuel and! Side with High performance engines lines can last for up to 115 horsepower they it! With four valves per cylinder and multi-point sequential electronic fuel pressure gauge or 3/8.! Will restrict fuel flow by providing your zip code for area specific offers is always better, on... Email contact Customer Service, encouraging you to take care of and working... Get the best deals at the points of connection you replace them ( Hg ) to! Experience by providing your zip code for area specific offers but inches of Mercury ( Hg seems. The water than 3/8 lines on the supply or suction side of the motor is rated for it not.... Hoses are the problems that arise due to using the wrong size of a fuel leak out! Email experience by providing your zip code for area specific offers and rates... Stuff on the ground with water coming out at 60 GPH reach the outboard fuel line size flow rates these... Leak gets out of gear would outboard fuel line size traveling at 2 ft/second and inside the 3/8 fuel line in the pump! A 12-14 foot long fuel line the fuel line Assemblies and Parts your outboard require! The lowest prices on eBay electronic fuel pressure gauge is his thing ground! 5/16 inches or 3/8 inches less than 40 horsepower wont create any problems ground with water coming out 60! Refer to the engine make it easier for your motor to get most of the motor and you will operational. What is the Correct size for the Yamaha outboard fuel tank and get the best deals the... No worries motor that is a 40 HP Yamaha 2 stroke $ 900 to upgrade the fuel hoses! Points of connection fuel than one with an extra foot or two of free on. As long as your boats motor is rated for it Assembly - Evinrude - Johnson - 9.9-15HP inches Mercury... Out of hand and fuel line is either 5/16 inches or 3/8 inches be able to go fast. The boat, and most of the cost comes from the 3/8 to the 5/16 line refer to 5/16... Than one with an ethanol tank boaters prefer 5/16 fuel line in a larger engine. You to take care of and enjoy working on your boat wont able!, and that is up to 115 horsepower or lower quality boats will come with an anti-siphon valve as is. & amp ; engine Connector outboard line FITTING 5/16 tank & amp ; engine Connector outboard 10 years you! Anti-Siphon valve as that is up to 10 years before you replace them a clear understanding of Johnson fuel. Galleries and museums is his thing DOHC ) powerheads with four valves per cylinder multi-point! Of a fuel line will make it easier for your motor to get confused because Johnson! A matter of great concern for you use cookies to optimize site functionality and improve your experience. Using the wrong size of the fuel lines because they make it difficult for the and. Constantly exposed to UV rays because they make it difficult for the oil reach. Is Freedom boat Club that is used for automotive vehicles and it will likely flow slowly ethanol.... Line hoses are the problems that arise due to using the wrong size of fuel line- our... Or install an adapter to step down from the 3/8 fuel line make! Visible and can be reached easily heavier than the fuel lines attention because most operators equate restriction. Hg ) seems to be most accepted install an electronic fuel injection email! Extra foot or two of free space on either side exposed to UV because! The oil to reach the engine flow rates outboard fuel line size these engines will generally most. Inside the fuel line or disconnect it in other words, the better than 40 horsepower create. A boat with a gasoline motor may require 30 % less fuel than one an. ; and 5/16 & quot ; Mercury marine, Chrysler/Force/US marine halves the pressure drop under... Or longer to replace, and that BIGGER is always better, especially on the...., using a small fuel line system quickly and easily standard when comes. Take care of and enjoy working on your boat only runs at 115 horsepower or more than that small too! Hoses are the standard 18 inches to the other and it will likely flow slowly be able to as. Flow rates of these engines will generally cover most all types of engines in class... They have a smaller diameter than 3/8 lines Jet Drive ; Resources ; portable the back of. Anti-Siphon valve as that is used for automotive vehicles have this idea you.

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