Marine fuel lines are different from the fuel lines that you would find in a car. It really helps us out and we thank you so much for your support! Search your part number using our part interchange & find interchangeable parts for your application. Such a problem arises due to, Read More Mercury Outboard Fuel Pump Problems: Top 6 Problems With ExplanationContinue, Are floorings really necessary for boats? 10. The max HP of the particular engine does not matter much Its more the design of the fuel system that dictates the total fuel flow. Now that you know what fuel line size is ideal for which horsepower, you will be able to fit the perfect fuel line in your outboard. . Fuel return line pressures are also something that needs to be considered in the design of a fuel system. I think it was time The Yamaha F115 is a great 4-stroke outboard motor which consistently receives high marks for reliability, longevity, and performance. Can anybody tell me what fuel line size I need to get for a Tohatsu M40c? Anything below this is the job for a 5/16 fuel line. Then we also have some really useful information on What Using Ethanol Fuel Does To Your Boat & How You Can Safely Use It! As a result, less amount of fuel can pass through the line. 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. It is vital that the fuel line has a tight connection, or else it will face an air leak. But most smaller outboards have fittings or quick connects on them that are set for a 5/16 hose. Otherwise, you can use a 5/16 fuel line for an outboard if your boat only runs at 115 horsepower or lower. You may have to spend a bit more on cash, but your outboard engine will run at its full efficiency and remain healthy for a longer time. Whether an Inboard Boat or An Outboard Boat is best for you! Its undeniably a vague location to start with. $39.72. This would be about normal. Look at it like this. That doesnt mean that you shouldnt check your fuel lines if you dont put a lot of hours into them. 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. $19.99. Your email address will not be published. a 9.9 does not take much fuel to run so does not need a big line Easy enough to do up to the connector but not so easy to do once you get inside. Some people are not much serious about the size of the fuel line of their outboards. I would recommend to ensure that the internal diameter of the fittings and fuel line are not reduced. Actually, a longer fuel line will make it difficult for the oil to reach the engine properly. Some fuel lines take 8 hours or longer to replace, and that is when you will spend over $400. 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. Some manufacturers will also specify a maximum value, NOT TO EXCEED, with dirty filters and that might be 8 Hg. The bigger fuel line (3/8) is suitable for outboard engines with more than 115HP. It costs up to $500 or more to replace or upgrade your outboard fuel lines. It can be a difficult process so its worthwhile to hire a professional to avoid damaging your outboard. Marine fuel lines are constantly exposed to UV rays because they pierce through the water. It is also very important to understand that there are different types of fuel hoses. Your email address will not be published. Buy a genuine Mercury Quicksilver or aftermarket part. Yes, you can equate the two but not as most think. For example, you may experience random pressure drops while boating if your fuel line is too short. A fuel line that is too long can lead to inconsistencies in pressure while you sail. If they are smaller, they could restrict flow. 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. 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. Its understandable that when were running new fuel lines, or re-powering an old boat; we want to put the right hoses in, but dont want to spend the markup price on OEM hoses. Replaces Honda Part Number: 15761-045-000 Fits Honda: CA100 Honda 50 - 1962-1970 CA102 Honda 50 - 1962-1969 Z50A Mini Trail - 1974-1978 CT70 - 1969-1981 XR75K - 1973-1976 CT90K - 1966-1968 CM91 Honda 90 - 1966-1969 CT200 Trail 90 - 1964-1966 CB100K - 1970-1972 CL100K - 1970-1972 CL100S - 1971-1973 SL100K - 1970-1973 XL100K - 1974-1975 It has a 4 stroke engine which can be described as 4 strokes per cylinder (in line) and features a 200 horsepower. However, knowing these numbers isn't enough. The general rule of thumb still stands regardless of what manufacturer engine you have! Things can pop up in the water in the way at any moment! $98.83. 2 SETS Fuel Filter for Yamaha Outboard Boat Motor Water Separator 9.9Hp 15Hp 20Hp 25Hp 30Hp 40Hp 61N-24560-00. Clogs can be due to everything from the charcoal canister to the carburetor in some cases. Menu. That isnt a bad thing, however, and it makes them perfect for boats with small outboards. Regardless of the units of measure used, fuel restriction values need to be very low, and in a general sense, the lower the better when the system is fresh or new as this gives the operator more time between filter maintenance. They think any size would fit perfectly. Its wide tunnel will allow a significant amount of gas to pass through. You can use a 5/16 fuel line for a boat with a 115-horsepower motor or lower. Find many great new & used options and get the best deals for Fuel Line Connector For Outboard Motor Engine Kit Male & Female Plastic 2 Pc/Set at the best online prices at eBay! This is How You Solve It. Meanwhile, encouraging you to take care of and enjoy working on your boat! There are different causes to this depending on your engines. 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. Fuel Connector for Mercury outboard motors, Replaces 22-13563A6, 22-13563Q7, 22-13563T7 . 2.3 HP Outboards. By the time the restriction number climbs to about 10 hg, its typically time for a filter change. Features: Spark Plug Tester: 1Pack. These fuel tank are constructed of high-quality plastic and are UL approved. However, if you read the rest of the, Read More Where to Find Hull Identification Number Location on VesselContinue, Are you facing difficulties in maneuvering your boat? From: $4.94 . However, knowing these numbers isnt enough. Fuel Tank Replacement Diurnal Cap w/In-Tank Retainer. Outboard fuel line length is less important than the diameter. You should at least inspect your fuel lines at least once per year even if you dont use your boat often. Fuel return line pressures are also something that needs to be considered in the design of a fuel system. 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. . Your boat wont be able to go as fast as advertised if you use too small or too large of a fuel line. Yes, the 2 mic will load quicker (get dirty) and the restriction would rise faster, but isnt that what it should do? . For example, According to Car Treatments, if you use a 5/16 diameter of fuel line in larger outboards, it will make the engine run lean due to lower fuel flow. Accidentally Put Boat In Reverse While Driving? Giving you all kinds of different problems! No matter what the cause, Read More 5 Reasons Causing Yamaha 4 Stroke Outboard Idle Problems (and Solutions)Continue, When should you replace the oil filter on your Mercury outboard motor? 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). The fuel line is either 5/16 inches or 3/8 inches. Small sailboats and fishing vessels can generally benefit from a 5/16 fuel line. Otherwise, the fuel line and motor wont be rated for high-pressure fuel injection which can lead to dangerous and expensive internal errors. Fuel tanks are available in 25 liter (6.6 U.S. gallon) and 12 liter (3.1 U.S. gallon) sizes, and come standard with the fuel connectors and fuel gauge built-in to the fuel cap. We just ended up w/ a .4 Hg pressure drop (measured at the engine hook-up point) from the fuel lines by themselves (about the same number you will get from a properly sized fuel filter system installed on the supply or suction side of the engine. MARINE BOAT UNIVERSAL FUEL LINE ASSEMBLY 5/16" HOSE BARBS OUTBOARD PRIMER BULB. Next, the restriction on the flow of fuel due to the smaller size of the fuel line is dangerous. 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. This is How You Solve ItContinue, Your email address will not be published. p. text-align: left, font-size: 18px, font-family: Times New Roman, line-height: 1.2, div. Origin:Cn (Origin) 3m Boat Fuel Line Assembly Gas Garden Hose Connector for Yamaha Boat Outboard Engine Engine Marine Fuel Desiel Line Hose Oil PipesDescription:100% new and good quality.Brings fuel out of the tank up the line, also prevent fuel from returning to the tank and keep it in line.Arrow indicated on body, show liquid flow direction, Prevents fuel draining back to the tank, keeps it . This article has the answer. With this fuel line, you can achieve 6000 RPM. If so, it must be a matter of great concern for you. Can You Run An Outboard Without A Poppet Valve? Power & Performance Incredible Power to Weight Battery-less EFI Compact and Light So, here is the article that will tell about the ideal fuel line size for a Johnson outboard. Below are the problems that arise due to using the wrong size of fuel line-. Sorry, you're using a web browser that is no longer supported. 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. , encouraging you to take care of and enjoy working on your engines, with dirty filters and outboard fuel line size be... 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Pierce through the line, your email address will not be published boat with a 115-horsepower motor lower... Of hours into them small or too large of a fuel line boats with small outboards advertised if use. ; hose BARBS outboard PRIMER BULB tank are constructed of high-quality plastic and are UL approved recommend ensure. Lot of hours into them the two but not as most think the water in the design a. Line is dangerous a significant amount of fuel can pass through the line EXCEED, with filters. Have some really useful information on what using Ethanol fuel Does to your boat water in design...