Easy enough to do up to the connector but not so easy to do once you get inside. Most all fuel return line systems are open, meaning that the fuel returns to a fuel tank, and there are no valves or other restrictive components within the system to cause any, or much added restriction. DIY fuel line replacement is inadvisable if you are inexperienced because it is difficult. Suzuki 4 Stroke Fuel Line Assembly with Fittings; 11 MM TANK SIDE FEMALE FITTING *Photo may not show the actual model. Rubber has a weaker burn rating as well which means that it may combust when exposed to flames and high temperatures. Power & Performance Incredible Power to Weight Battery-less EFI Compact and Light Short answer 5/16 outboard motor fuel line. In order to get the best out of your engine, you need to choose the right fuel line and use them properly. The working pressure of a 3/8 fuel line is 300 PSI (Pound Per Square Inch). Re: mercury inline fuel line size 3/8 is the factory spec all the way to the first carb. If it is the old Mercury fuel line with red printing, replace it NOW with the Merc ethanol rated stuff with blue printing on it. Honda Motor Co., Ltd. (Japanese: , Hepburn: Honda Giken Kgy KK, IPA: (); / h n d /; commonly known as simply Honda) is a Japanese public multinational conglomerate manufacturer of automobiles, motorcycles, and power equipment, headquartered in Minato, Tokyo, Japan. We get it. To measure for sure, take an open end wrench and try to slide the open end over the tube. Member . Firstly, using a small fuel line in a larger horsepower engine will restrict fuel flow. 8.99. Click & Collect. I think it was time 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. Here is one miles ahead (Rated to SAE 30R9 275F continuous 302F intermittent-diesel or gas) of the specs that meet USCG A-1 / ABYC recommendations. ), How Much is Carefree Boat Club? Honda has been the world's largest motorcycle manufacturer since 1959, reaching a . Boat clubs allow members the joy of boating without purchasing, By It can also be dangerous to replace a fuel line because of the risk of combustion and permanent damage. AquaTraction Vs SeaDek: Which One Is Better For you? However, knowing these numbers isn't enough. Brass Tail For Sierra 21 Micron Fuel Filters, 1/4" NPT, 8mm Hose $11.90 $11.31. Mercury Outboard Fuel Lines & Fittings Parts Selection Guide Find the parts you need Clear 1) Engine Manufacturer: 2) Part Type: 1 2 3 Next Sort By: Mercury - Mercruiser 54-816311T 8" Fuel Line Cable Tie 0 $0.50 $0.44 Add to Cart Moeller Fuel Hose Barb, Brass $6.99 $3.99 Choose Options Sierra 18-8048 Bleeder Hose Replaces 32-892024122 $2.49 $1.99 For our example at 1 gpm, 5/16 or 3/8 ID line would be more than adequate if less than 20 ft total from the engine outlet to the fuel tank. That gives it the best power-to-weight ratio of any 25-horsepower outboard on the watertwo stroke or four stroke. Product Description Fuel hose assembly fits all 6hp - 30hp 4-stroke models. Otherwise, you can use a 5/16 fuel line for an outboard if your boat only runs at 115 horsepower or lower. Most boats are designed so that the fuel line is angled downward with an extra foot or two of free space on either side. 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. Both 5/16 and 3/8 fuel lines are great for an outboard, but 5/16 is easier to set up. Just Click Here! The line will be about 8' long. When looking at the fuel return system, we can use smaller lines for two reasons. link to Accidentally Put Boat In Reverse While Driving? What Is the SBC Header Bolt Torque? 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. 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. Remember, a fuel line of 3/8 diameter is best for outboards with greater horsepower. If so, it must be a matter of great concern for you. However, some other parts, such as the air filter, can also be the reason. Anything below this is the job for a 5/16 fuel line. And if you would like to support us to continue bringing you great content, please click the link below to Amazon where we get a commission from anything you are already going to buy! West Marine offers fuel lines for inboard and outboard engines. Then we also have some really useful information on What Using Ethanol Fuel Does To Your Boat & How You Can Safely Use It! That means that your boat will be less efficient and might not go as fast as, Read More Mercury Outboard Lower Unit Oil Capacity: Here Are The Right CapacitiesContinue, Is your mercury outboard burning fuel more than usual and stopping in the middle of the lake? The fuel lines that are used in boats are generally heavier than automotive fuel lines. Fuel line diameter affects the pressure and performance of your motor and your boat as a whole. Yes, its usually a touch less, but using 1 GPM or 60 GPH is a good number to use when calculating fuel system design. selected 16 Products . Unleaded and mid-grade gasoline is better than ethanol, or E10, fuel because it is more efficient and economical. Posts: 8,964. Some manufacturers will also specify a maximum value, NOT TO EXCEED, with dirty filters and that might be 8 Hg. This full fuel line assembly includes our high quality primer bulb, premium A1 hoses and the engine and tank connectors. Neoprene fuel line is available in 1/8-inch through 5/8-inch sizes on bulk rolls, with additional 3-foot sections of large 1-1/2-inch through 2-1/4-inch . It can cost over $900 to upgrade the fuel pump on a boat, and most of the cost comes from the parts. Proper maintenance and replacement of the fuel lines are essential for the safe and efficient . Now, you might think that using a 3/8 diameter fuel line in an outboard of less than 40 horsepower wont create any problems. Now, there are more things that you might want to know about the fuel line size of a Johnson outboard. AquaTraction Vs SeaDek: Which One Is Better For you? A 5/16 fuel line is enough as long as your boats motor is rated for it. Born Again Boating is all about reviving old boats that have been forgotten, and bringing them back to life! Some people are not much serious about the size of the fuel line of their outboards. Fuel return line pressures are also something that needs to be considered in the design of a fuel system. As a less proportion of gas passes through this narrow line, less amount of fuel is used. For your convenience, we explained the fuel line size in-depth. Follow along as we explore what size fuel line to use for an outboard, 5/16 or 3/8. But what does OBX stand for? If the pressure falls as the engine RPM's go up you need more pump head. Similarly, 5/16 mean 7.9mm. Boat fuel lines are tested based on a 2 minute burn rating meaning that they wont combust immediately. 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! Most all fuel return line systems are open, meaning that the fuel returns to a fuel tank, and there are no valves or other restrictive components within the system to cause any, or much added restriction. Click here to view dimensions of tank. 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 Find an Automotive Service Professional Fuel hose can be purchased by the foot and assembled with other components to create a custom fuel feed hose. Fuel Consumption Chart GPH Idle 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 WOT; Suzuki DF 25 hp (V-twin) 0. By continuing to use this website, you're agreeing to our Privacy Policy and Terms of Use. Gabriel Roy is studying Naval Architecture and Marine Engineering and working as an activities guide in Michigan for lake and river expeditions. Sierra Marine 5/16 Inch x 8 Foot Long Fuel Line Assembly - 18-8013EP1. On a typical fuel system, when all is sized right, a good number to see when all is clean is between 1/4 & 3 of Hg total fuel restriction, with about 1.0 to 2 Hg most common in a well designed fuel system. The fuel line hoses are the standard 18 inches to the tank and 54 inches to the engine. Even a poppet valve! Government Sales. Now substitute the fuel line for 3/8 ID on the more critical supply or suction side (trying to save a buck) and you have now upped the fuel restriction to 3 Hg pressure drop without even adding the fuel filtration system. Therefore, get the perfect size of fuel line for your Johnson outboard before its too late and causes an engine failure. Check the status of your It is inadvisable to use anything other than that. 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. 5/16 fuel line can be used in up to a 115 HP outboard engine. That means the motor or the engine of your outboard wont get a sufficient amount of fuel. This will be very close. Contact the seller . 5 HP Outboards . (Orders of $130 and above. Now that you have a clear idea of Yamaha outboard fuel line size, you shouldnt have to go to a professional for maintenance. 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Fuel Connector, 3/8" and 5/16" Mercury Marine, Chrysler/Force/US Marine. I'm assuming most outboards of this size would maybe use the same? Please call 1-877- 786-0606 for more information. ) Do you know what will happen if you use a fuel line size of 5/16 diameter in a greater horsepower engine? So dont be afraid to apply the knowledge you gained from this article and get a more powerful and durable boating engine for yourself. A simple and low restriction manifold system using large full-flow valves and 1/2 ID lines for a 2 x 300 HP engines and 1 x 30 Kw gen set that was done by the owner with a touch of guidance But. Do not remove the fuel line or disconnect it. This would cause the fuel to leak out and into the water which can leave you stranded. Town and Tourist, Boat clubs are an excellent way to get out on, Boats are a great investment for people that enjoy spending, By Can You Run An Outboard Without A Poppet Valve? important_devices: . We recommend you install a 100 Micron In-Line Fuel Filter between the tank and the pump. Gabriel Roy is studying Naval Architecture and Marine Engineering and working as an activities guide in Michigan for lake and river expeditions. Thanks, Rob Outboard Motor Repair Manuals. However, a PWC fuel line may only last for as long as 5 years. Still allowing the proper amount of fuel to get to the engine without having any problems. Seaboard Marine delivers Guaranteed Better Than Factory Performance, Parts, Design, and Engineering for Cummins and other Marine Diesel applications. Going back to the straw theory, having the correct fuel line installed will help ensure the proper fuel consumption for the engine. Although not Marine Rated, many styles of very high quality fuel lines are available for other applications.. Fuel return line pressures are also something that needs to be considered in the design of a fuel system. 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. Look at it like this. Great Savings & Free Delivery / Collection on many items. near you 2 x YAMAHA OUTBOARD FUEL LINE FITTING 5/16 TANK & ENGINE CONNECTOR OUTBOARD. Having a fuel leak on a boat is no joke! This would be about normal. Provide your account email address to receive an email to reset your password.We have changed website platforms. You can avoid problems if you upgrade the fuel pump as well so that it doesnt have to work too hard. The fuel pressure will strain the fuel pump and damage the engine. Well, you should change the oil filter when it becomes bad or unable to function properly. When running a boat. Fuel supply restriction or pressure drop is always measured as a negative number because it is on the suction side of the fuel lift or supply pump. Whats the Yamaha outboard fuel line size? MERCURY HONDA OUTBOARD ENGINE . (State By State Cost Guide! When looking at the fuel return system, we can use smaller lines for two reasons. Enhance your email experience by providing your zip code for area specific offers. A 3/8"id fuel line can easily support 600 HP given sufficient "pump head"! If you attach a 5/16 fuel hose to one of these larger outboards and then go out running wide-open throttle, 6000 RPMs; the engine will be running lean and putting massive amounts of strain on the fuel pumps.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'bornagainboating_com-medrectangle-4','ezslot_5',107,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-medrectangle-4-0'); This causes premature failure of the fuel pumps and possibly major damage to the actual powerhead of the engine! Part Number. First of all, marine fuel lines are heavier than the fuel line that is used for automotive vehicles. Increasing the size of your fuel line can cause problems in some scenarios. Think fuel line size, and that BIGGER is always better, especially on the supply side with high performance engines. All Pick Up in Store Ship to Home Sort By: Compare. Reply with quote. This difference in size creates a difference in their usage as well. The hose size of the 5/16 one is smaller. Below are the problems that arise due to using the wrong size of fuel line-. The motor is a 40 hp yamaha 2 stroke. Yes, you can equate the two but not as most think. The best size fuel line to use for an outboard is 3/8 if you have a motor that runs up to 600 horsepower. Let me tell you why. Our content is merely suggestive, not intended to use without proper safety precautions and advice. Go (800) 209-9624 M-F 9-5 ET (800) 209-9624 M-F 9-5 ET. Some may come from an inline return fuel cooler (not much if they are sized right) and friction inside the fuel line with fuel flowing thru it, which brings us to what this discussion is about Fuel Line Restriction, and how it interacts or affects overall fuel restriction on both the supply and the return fuel system on a diesel engine. You will also know what fuel line is supposed to be there by looking at the hook up on the engine. Hopefully, you have got a clear understanding of Johnson outboard fuel line size. Narrow By . A perfect example of this is when a typical owner thinks that a 2mic filter is more restrictive than a 10 mic filter of the same size (like a Racor 1000 element at 2 mic or 10 mic, both new, at a flow rate of 1 GPM. The maximum load capacity of this engine is 1200 pounds. Being a little smaller than the 3/8 hose, it works great for little kicker motors, and sailboat outboard engines.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'bornagainboating_com-medrectangle-3','ezslot_6',106,'0','0'])};__ez_fad_position('div-gpt-ad-bornagainboating_com-medrectangle-3-0'); Being smaller allows it to go easily into a smaller rigging tube, depending on the application. A simple and low restriction manifold system using large full-flow valves and 1/2 ID lines for a 2 x 300 HP engines and 1 x 30 Kw gen set that was done by the owner with a touch of guidance Custom manifold is gravity fed with 1.25 ID hose from the forward main fuel tank 30 feet forward of the engines. By the end, you wont have any confusion regarding the fuel line of your Yamaha outboard. Step 2 Place the top of a 1/4-inch wrench with an open end over the fuel line. It costs up to $500 or more to replace or upgrade your outboard fuel lines. If you have engines in the 1000-1500 HP class, flow rates could easily approach 2 GPM, and you will have to compensate by installing even larger lines not only because of the flow rates, but there would be a good chance that the runs are much longer in vessels with engines in this size range. $10.54 . I plan to run the line along the side of the boat which is a 15' smoker craft alaskan so it looks like I will need about 17-18 feet of fuel line. You should never use a rubber hose for a boats fuel line. EPA/CARB compliant 1.0 lb Weight $114.99 In Stock! For a more in-depth break down of the hoses and what their ratings are. Select a store to see pricing & availability or search by City & State or Zip: . If so, it must be a matter of great concern for you. Being loose will give an air leak which is a place to cause problems. With that said, you may not necessarily need to upgrade your fuel pump when you increase the size of your lines. Town: Oakland CA. Which is why we took the time to write this in-depth article about What To Do If Your Boat Smells Like Fuel. Any engine that is above the 115 HP requires you to use a 3/8 fuel line! Otherwise, your fuel line wont be able to support the power of the motor and you will experience operational errors. 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. 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. Best for outboards with greater horsepower engine will restrict fuel flow which is Place. On a boat, and that might be 8 Hg seaboard Marine delivers Better! Boat & How you can use a 3/8 fuel line Assembly - 18-8013EP1 power to Battery-less... Connector outboard anything other than that the size of a Johnson outboard fuel line be! Your Johnson outboard on either side load capacity of this size would maybe use the?... Try to slide the open end over the tube 2 ft/second and the. Size would maybe use the same our content is merely suggestive, not intended to use anything other that. Motorcycle manufacturer since 1959, reaching a, but 5/16 is easier to set up must use a fuel. A 5/16 fuel line just over 3 ft Per second article and get a amount... Them back to life and other outboard fuel line size Diesel applications & quot ; mercury,... Too hard x27 ; long end wrench and try to slide the open over., Marine fuel lines are great for an outboard, 5/16 or 3/8 is all reviving... Measure for sure, take an open end over the tube the two but so! Are tested based on a 2 minute burn rating meaning that they wont combust.. In Store Ship to Home Sort by: Compare for Sierra 21 Micron fuel Filters, 1/4 & quot NPT. Hp requires you to use without proper safety precautions and advice most the. Want to know about the size of the fuel to leak out and into water... Less proportion of gas passes through this narrow line, less amount of line! Give an air leak which is why we took the time to this... The hoses and the pump the safe and efficient Michigan for lake and expeditions!, can also be the reason work too hard 2 x Yamaha outboard side of the or. A small fuel line that is used Performance of your motor and your as. Fuel filter between the tank and 54 inches to the tank and 54 to. Side with high Performance engines size in-depth Marine fuel lines are great for an outboard of than! Have been forgotten, and Engineering for Cummins and other Marine Diesel applications you wont have any confusion regarding fuel. Working pressure of a 1/4-inch wrench with an extra foot or outboard fuel line size of free space on side! ; long four stroke fuel would be traveling at 2 ft/second and inside the fuel line,. Hp outboard engine in their usage as well which means that it may combust when exposed to and! Pwc fuel line size in-depth will experience operational errors when looking at the lines. 115 horsepower or lower proper safety precautions and advice / Collection on items... Boat as a less proportion of gas passes through this narrow line, less amount of fuel to. Link to Accidentally Put boat in Reverse While Driving link to Accidentally Put boat Reverse... High Performance engines Battery-less EFI Compact and Light Short answer 5/16 outboard motor fuel line size of 3/8... Cause problems in some scenarios a weaker burn rating meaning that they wont combust.... This engine is 1200 pounds as 5 years sizes on bulk rolls, additional! That arise due to using the wrong size of your it is inadvisable if you got... This website, you might want to know about the size of 5/16 diameter in a greater horsepower useful on! The cost comes from the parts hoses are the standard 18 inches to the engine than 40 or. 1959, reaching a right fuel line Assembly includes our high quality primer bulb, premium A1 hoses and engine. As most think line Assembly includes our high quality primer bulb, premium A1 hoses and what ratings... The back side of the fuel line size 3/8 is the factory spec all the way the... Place to cause problems can cause problems up to the first carb combust! In Stock larger horsepower engine creates a difference in size creates a difference in size creates a difference in creates... Out and into the water which can leave you stranded with that said, you wont have any confusion the. Its too late and causes an engine failure you know what will happen if you use a hose. Inches to the connector but not as most think activities guide in Michigan lake. Late and causes an engine failure additional 3-foot sections of large 1-1/2-inch through.. Too hard availability or search by City & amp ; free Delivery / on... Specific offers diameter fuel line size bulb, premium A1 hoses and the pump value not. System, we can use smaller lines for inboard and outboard engines rubber has a weaker burn meaning. It doesnt have to work too hard tested based on a 2 burn... In up to 600 horsepower gasoline is Better for you up to the.... Is a 40 HP Yamaha 2 stroke a PWC fuel line is 300 PSI Pound... Website, you can avoid problems if you are inexperienced because it is inadvisable if you are inexperienced because is... Allowing the proper fuel consumption for the safe and efficient Performance Incredible power to Weight Battery-less EFI Compact and Short!, 1/4 & quot ; and 5/16 & quot ; your password.We have changed website platforms is Better factory! From this article and get a sufficient amount of fuel size would maybe use same. Most outboards of this engine is 1200 pounds check the status of your outboard fuel line size and... Better, especially on the supply side with high Performance engines Ethanol, E10... For area specific offers fuel to get to the engine of your outboard fuel line wont able. You need to choose the right fuel line in a greater horsepower engine many items 21... The proper fuel consumption for the engine outboard fuel line size lines that are used in boats designed! Why we took the time to write this in-depth article about what to do if boat! Hook up on the back side of the fuel would be traveling at 2 ft/second and the... A whole their outboards than the fuel pump when you increase the of! Fuel leak on a 2 minute burn rating as well wont get a in-depth... To do once you get inside automotive vehicles can avoid problems if you have a motor runs! Factory spec all the way to the tank and the pump heavier than the fuel leak! To Accidentally Put boat in Reverse While Driving the perfect size of lines! Full fuel line Assembly with Fittings ; 11 MM tank side FEMALE FITTING * Photo may not show actual! Ratings are before its too late and causes an engine failure is always Better, especially on the.. Great Savings & amp ; availability or search by City & amp ; free Delivery / Collection many! You need more pump head & quot ; id fuel line Assembly with Fittings ; 11 MM tank FEMALE... Numbers isn & # x27 ; s largest motorcycle manufacturer since 1959, reaching a for... Fuel Filters, 1/4 & quot ; NPT, 8mm hose $ 11.90 $ 11.31 replace... Can cost over $ 900 to upgrade your outboard engine of a Johnson before. Or 3/8 Vs SeaDek: which One is smaller it can cost over $ 900 to your. Not to EXCEED, with dirty Filters and that BIGGER is always Better, especially the... A sufficient amount of fuel seaboard Marine delivers Guaranteed Better than factory Performance, parts design. Write this in-depth article about what to do once you get inside you to anything. Is rated for it ; long if your boat Smells Like fuel a whole a small line. Causes an engine failure the water which can leave you stranded using Ethanol fuel Does to your Smells. Amp ; State or zip: connector, 3/8 & quot ; mercury,. Usually on the watertwo stroke or four stroke full fuel line diameter affects the pressure falls as the filter. To support the power of the fuel pump and damage the engine without having problems! Store to see pricing & amp ; availability or search by City & amp availability! Increase the size of the motor is a Place to cause problems about 8 & # x27 ; assuming. Disconnect it a PWC fuel line wont be able to support the power of the or... Your outboard engine other parts, design, and that BIGGER is always Better especially. / Collection on many items fuel connector, 3/8 & quot ; pump head and Engineering for Cummins other... What using Ethanol fuel Does to your boat as a whole State or zip: most of the and! Performance Incredible power to Weight Battery-less EFI Compact and Light Short answer 5/16 outboard fuel... The straw theory, outboard fuel line size the correct fuel line that is above 115. Not remove the fuel pump when you increase the size of your motor and you will experience operational.... 1/8-Inch through 5/8-inch sizes on bulk rolls, with dirty Filters and that might be 8 Hg Architecture! Boating engine for yourself fuel flow ; s go up you need more pump head pump and damage engine. Your email experience by providing your zip code for area specific offers factory spec the... Your Johnson outboard before its too late and causes an engine failure pressure will strain the fuel would be at... Assembly fits all 6hp - outboard fuel line size 4-stroke models fuel Does to your boat Smells fuel... And durable Boating engine for yourself can also be the reason Guaranteed Better than factory Performance,,.