652F Ignition Spark Plug Tester Wire In-line Diagnostic Tool Auto Detector Coil Ignition System Test for Car Lawnmower Engine. The all-new F25 Portable four stroke features a Single Overhead Camshaft, 2-cylinder powerhead, for a compact design that weighs in at only 126 pounds. Below are the problems that arise due to using the wrong size of fuel line-. A marine fuel line is totally different from an auto fuel line. Yes, you can equate the two but not as most think. Follow along as we explore what size fuel line to use for an outboard, 5/16 or 3/8. For a more in-depth break down of the hoses and what their ratings are. You might fit any fuel line size to your outboard engine, but the engine wont work properly if the diameter is too small or too big. California Transparency in Supply Chain Act. Even if your boat engine is equipped with the wrong fuel line, you now know how to fix it accordingly. In other words, the shorter the fuel line, the better. Now that you have a clear idea of Yamaha outboard fuel line size, you shouldnt have to go to a professional for maintenance. However, a PWC fuel line may only last for as long as 5 years. In short, if you have a Johnson outboard engine of more than 40 horsepower, then using a fuel line with a 3/8 diameter is a must. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Disclaimer: Remember to always consult with an expert first before trying anything at home. It has a 4 stroke engine which can be described as 4 strokes per cylinder (in line) and features a 200 horsepower. 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. Do not remove the fuel line or disconnect it. selected You can use a 5/16 outboard fuel line if you have a boat motor that is up to 115 horsepower. When you connect the fuel line to the engine, you want to make sure it is tight and not loose. Portable; Mid Range; High Power; Jet Drive; Resources; Portable. Now, you might think that using a 3/8 diameter fuel line in an outboard of less than 40 horsepower wont create any problems. Obviously, the difference between the two fuel lines is one is smaller than the other. Check if this part fits your vehicle. Learn more about our This applies to the majority of personal boats, so you may already have a 5/16 fuel line. 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 There would be nothing wrong with using a larger line, but we feel it is nice to use smaller sized fuel line in the return system to allow an easier way to ID them and to save space & costs for the owner. Replace the primer bulb too." "turns out I had Mecury fuel line and they have had a problem with the interior liner coming apart and clogging the fuel system. 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. (How to Get a Policy! Find an Automotive Service Professional Is your boat engine not rotating properly? Of course, it does! With this fuel line, you can achieve 6000 RPM. 4-Stroke engines or fuel-injected engines will generally never lose prime. Mercury - Mariner Outboard Fuel Line Assemblies and Parts. First of all, marine fuel lines are heavier than the fuel line that is used for automotive vehicles. 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. Under a question related to the fuel line size of the Yamaha outboard on thehulltruth.com, lost since commented. Fuel Connector for Mercury outboard motors, Replaces 22-13563A6, 22-13563Q7, 22-13563T7 . Your boat wont be able to go as fast as advertised if you use too small or too large of a fuel line. 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. In my opinion, the dirty filter number or maximum restriction you can have, or can get by with, is somewhat installation / engine unique, and the operator can make the call as to when fuel restriction or filter changes are required. If they are larger, the engine will not flood. There is no maximum fuel line length, but you should ideally stick with the stock fuel line that your boat came with. However, knowing these numbers isnt enough. Its best to look closely at the connections when you are hooking up to the fuel line from the boat. Hoses come with different US Coast Guard ratings; A1, A2, B1, and B2: This is just a quick break down of the difference and ratings of the fuel hoses. Add to Compare. 5/16 fuel line can be used in up to a 115 HP outboard engine. Its wide tunnel will allow a significant amount of gas to pass through. The fuel line hoses are the standard 18 inches to the tank and 54 inches to the engine. The 55 V-block design and offset driveshafts contribute to making them remarkably compact. Town and Tourist, Boat clubs are an excellent way to get out on, Boats are a great investment for people that enjoy spending, By But what does OBX stand for? Power & Performance Incredible Power to Weight Battery-less EFI Compact and Light 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. Otherwise, you can use a 5/16 fuel line for an outboard if your boat only runs at 115 horsepower or lower. Its basically a sticker. A 5/16 outboard motor fuel line is a type of hose that connects an outboard motor to a fuel tank. (Orders of $130 and above. From: $4.94 . Having a fuel leak on a boat is no joke! Hopefully, you have got a clear understanding of Johnson outboard fuel line size. 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