We’ve used non-ethanol gas more often than not; when we’ve used gas with ethanol, we used a gas additive as well. Had it happen to me. Some of those little pieces can end up clogging jets leading to carb rebuilds. My husband and I have been cruising over 13 years and 12,000 miles, first on a Tayana 37 monohull and now on a 34' Gemini catamaran. Required fields are marked *. Realizing I need a general plan to look forward to was a change for me. Thanks in advance! This is a great way to troubleshoot a weak puel pump. When loosening the mounting screws, be very careful to only remove 1 at a time, and remember to tighten them all back into place. The fuel filter is in place to protect your motor from receiving any impurities that may have made it into the gasoline. Either the lift pump has failed, the boat is out of fuel or there is an air leak or blockage somewhere in the fuel lines running fuel from the tank to the engine. Replaced the water separator and primer ball and it ran fine for a day then back to cutting off and the ball deflating. Bad fitting connections and damaged flexible hoses being the most common. If I run the truck they flush away into the system and I see only an occasional fine bubble in the fuel flow at idle. Hoping that does the trick. ... you have blockage somewhere in the fuel line from the bulb to the fuiel ... July 17, 2006 at 11:47 am #460982. … Best to replace the entire line, bulb and connector asap if the engine won’t idle but is OK at higher rpm. It’s understandable. Install a vacuum gauge in the optional inlet port of the pump. Think I’ll spend the money for the OEM and carry an extra. Squeeze the primer bulb and make sure fuel is flowing. In a few days, squeezing the primer bulb does less and less, possibly getting to the point where there is no resistance in the bulb and it does not expand when released. Air in the fuel system is another possible trouble that may prevent an engine from starting. You have to go over the entire fuel system from tank pickup to injectors. If the leak is bad enough at idle, the fuel in the line could bleed back into the tank causing the pump to lose it's prime. Fuel leaks. Vapour has two main causes. The amount of air needed is easy to under estimate – around one cubic metre per minute is required for every 10hp of engine power. If that doesn’t do it off to the mechanic it goes. I filled it and it ran fine till I got to highway speed again. The symptom could be surging. My exact same experience with “crap-wood” hoses! Once the leak has been isolated, you may be able to fix it by cutting off a section of the fuel line and re-attaching the barb or fitting with a fresh piece of hose, or by simply replacing a hose-clamp. a a season or two tops, like there Stanley tools. Replaced with an overpriced Atwood “Kit” with no ends (how stupid is that) but problem solved, for now. Thanks. Would drip out of the bottom of cowling and into the rear of boat. https://mechanicbase.com/engine/vacuum-leak-symptoms-causes and so on, eventually dying. After that its fine. protected, low-permeation, suitable for all fuels (even E-85!) Sure as long as you’ve got that much room. Finding this page could save you so much time! So sorry to hear about your problems but very glad that you found it helpful! Folded the liner over and plugged the gas line. Check to make sure there aren't pinholes in your fuel tubing. In fact it's very common for air leaking engines to start and idle very nicely. Outboard engines lose fuel prime because of an air leak in the fuel system. When an engine fails to operate, stalls, misfires, or knocks, there may be air … or e.p.d.m., not rubber these daze. I have been fighting a similar problem. A quick Google search shows these fuel lines were made in response to the ethanol mandate in 2005, and have been on the market since at least 2007. Pool noodles deteriorate fast, shedding plastic to the sea. After the fuel pump, the fuel is under pressure and will seep out any unsealed areas as a fuel leak. Check to make sure there aren't pinholes in your fuel tubing. Click here. Xantia 1.9 TD 1995 92000m NB. Usually a bad or failing fuel return hose will display a few symptoms that can alert the driver of an issue. and then come right back . Heat shrink tubing is a good look. Yeah, I’d definitely at least check your fuel hose. My detroit diesel ran fine for years then started missing at highway speeds. I forgot: Thermoid hose is (relatively) cheap @ $17.00 for 25 feet (with free shipping). Outboard fuel problems. In talking with clerks at the local NAPA store, West Marine, other cruisers and outboard mechanics, it seems that we are not alone in our outboard fuel line problems. Check the condition of all the fuel lines, and the connections between rubber flexis and solid lines. We knew that the leak had to be somewhere between the tank and the fuel pump. I checked the fuel filters and one was low on fuel. Listen for unusually air sucking sounds as you squeeze. About the “automotive” fuel line (hose). I replaced all the hoses and fuel pump it still don’t get enough gas to go. On any line older than 5 years, the sun causes the bulb, rubber end connector inserts, and fuel line to age, shrink, harden and crack, leading to tiny air leaks that prevent the fuel pump from pulling gas into the motor, especially at idle. I don’t remember the exact designation of the hose, but I remember when buying it that it was supposed to be okay for use with ethanol gas. You can keep it closed with either zip ties or electrical tape. Automotive fuel hoses are made to withstand bursting from internal pressure, but they eventually collapse under vacuum conditions. Locate your mounting screws. 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. Most leakage trouble occurs in the fuel lines, but leaks may occasionally develop in the fuel tank. The Vacuum Method (Suction Line Test) This test will be most effective when you have a shut-off valve near the oil tank. The hydrophilic properties of ethanol (any alcohol) draws water right out of the water that builds up in the bottom of the tank and contributes to corrosion of the jets and other parts of the carb. These issues … Boats.net carries thousands of OEM fuel system parts. If there’s no visible fuel leak, the ball may be sucking in air; squeeze it again and again with your ear next to each connection, as you listen for a gurgle. preparing to cruise • overcoming problems. The problem was that there was a pin hole in the flexible line connecting the fuel filter to the rigid line running back to the tank. Overwhelmed with all there is to learn as you're starting to cruise? There are several methods to troubleshooting a stalling outboard engine. When I give the boat throttle it starves for gas. In the tank and all the fuel hoses/clamps and fuel water separator. I had an ‘81 Eldorado diesel last year with the exact same symptoms and after changing the rotted out section of line it ran fine. If vacuum reading continues to leak down, repair or replace fuel unit. Lesson – PERIODICALLY check your hoses (and avoid Sears outboards – not really an issue anymore!). If the problem persists, a trip to your mechanic is in order. If you have a fuel water separator with a … Question. It’s fabric-reinforced and one-piece construction—no “liner” to collapse and stop fuel flow. Generally, for an engine that size, it’s either 1/4″ or 5/16″, I have problem bulb starts to pump up then goes flat and will not expand.I replaced bulb new hose and both ends but problem persist any help . Thanks for the information. Some leaks will do both. If any of the hoses break down, dry up, or wear out enough they will leak fuel. When you’re checking the fuel filters, give the fuel pump’s inlet and outlet fuel lines a close inspection too. They ain’t “worth” carryin’ out of the store–much less the $50.00 they cost (and that’s for their “universal” hose which has no “ends” !”) Thermoid brand hose is American made, u.v. The lines were full of that lining. Check all fuel line connections and hose clamps. Defective engine compartment ventilation, or clogged air filters, can therefore result in a loss of power. A basic diesel engine needs only a constant supply of clean fuel, plus air to provide oxygen for combustion. There are several reasons, but these are the biggest of them. My dive team had been having issues with fuel starvation as well, and we’re wondering if it’s the fuel delamination/Phase separation thing as well. Locate your fuel tubing, and remove it. Help is here: Overcoming the First-Year Learning Curve (a free mini-course from The Boat Galley). I knew it had to be sucking air some where. Hmm, I didn’t see that liner in that first bit of hose that I saw. Save yourselves the headache. I posted this on another thread, got no opinions. Quite possibly insufficient fuel to run the motor. This is a 60 hp evinrude. Yes this sound very likely my problem ill start by redoing my lines thanks. If you see bubbles there are holes, and you will need to replace the tubing with new tubing. This could result in fuel starvation at high throttle settings. This ratio means that there is too much air in your engine, and as a result, the engine will run poorly or not at all. Then check the pickup tube in the tank — make sure there are no blockages. This leans out the fuel mixture which raises the engine speed. We will never sell your email or send spam. Find results that contain... All of my search term words of my search term words This is a great blog. Store your fuel line out of the sun. I'm pretty sure I've got a leak somewhere in the fuel lines, when the engine is cold is runs rough for 5-10 seconds before smoothing out. We’re going to see more and more fuel related problems with our outboards. just dont forget.as they will only last [The Yamaha F225 outboard engine] runs smoothly up to 3,100-RPM, at which point [the engine makes] sounds [which convey a diagnosis of] fuel starvation. If you want to keep enjoying the delight of the open road, you'll need to know how to diagnose or fix a few things, or know a great mechanic. ), gained a great boat dog, had a bunch of wonderful times and some adventures . Funny, I think of ethanol as a “new” problem. Any suggestions would really be appreciated. Read our privacy policy. And it wasn’t cheap either. OK, question here. Air in the fuel also causes similar problems – this can enter the fuel system through two mechanisms, running out of fuel, or leaks on the suction side of the fuel pump, which will draw air into the fuel lines. The fuel pump will pull air into the fuel, and pump it through the system, up to the carbs, through the needle and seat, and into the carb bowls. Have a 40hp Johnson starts fine but bogs down when giving it throttle! Most air leaks draw a very minute amount of air at low engine speeds. Vacuum leaks occur between the cylinder head and carburetor slide/butterfly, where the low pressure will draw in air through the leak area. The stall will also occur after a very long idle. For the record, this hose was made by Attwood and is not quite 18 months old. Is there a fuel filter in there (that you bypassed when on the portable tank)? for a while. It gelled up inside and the carb needed to be cleaned. A blocked outboard fuel line prevents fuel from getting to the motor. Check to see if it’s clogged. The only “downside” I can think of in using black hose is that it gets very hot in the sun (and will burn your bare buns when you sit on it…) but I’ve bought my last “marine” fuel line (from either “W M”) Besides, the only diameters those sources seem to stock must be for 100+ h.p. Many thanks, Be careful, liner causes issues. Misdiagnosis often causes unnecessary service costs and part replacement. Clean out the carburetors? Air won't be too much of a problem in the filter until it is drawn into the outgoing fuel line because the pump is after the filter. The average DIY fuel injector cleaning project and most automotive repair shops does not have the proper diagnostic equipment or the ability to test leaking injectors or clean them properly. If you got inspected, you’ll get a polite invitation (or court order), during the hearing for the ticket they write you, to Coast Guard Boater Safety School (AKA Boater Time Out). Louis Maconi mine was probably too old to have this issue, but who knows. What do I do now? Ethanol is a problem for a lot of reasons, not the least of which is fuel line decomposition, including delamination. Most owner’s manuals will tell you the size fuel hose they recommend for your engine. - bad seal in a quick-connect fuel fitting with a bad old hose from the 80s. A Note on Cranking When I primed the line there were bubbles visible in the line. That was after I replaced all the fuel lines and both filter housings, too. Periodically it doesn’t want to accelerate, like there is a fuel restriction or possibly an air leak in the line. So the outboard sees a lot more wear and tear and can wear out more quickly. The Vacuum Method (Fuel Unit Test) Disconnect supply line at the fuel unit. engines (3/8″ to 1/2″) and don’t fit small outboard engine fittings. . Air can be sucked in past the the clamps or crimps on the fuel hoses. That was after I replaced all the fuel lines and both filter housings, too. Starving for fuel. It is possible to have a vacuum leak that lets air into the fuel supply while fuel is not spraying out from the fuel system. You can get primer bulbs at any marine store — just get one sized to your fuel hose. That’s also a problem, but won’t produce the symptoms we had of an engine losing RPMs … Quite possibly insufficient fuel to run the motor. Repair the leak and retest system by redoing steps 1-6. Turns out, these new hoses have a “non-permeable liner.”. My [Yamaha F225 four-cycle outboard engine which has] 30-hours [of running time] started instantly after a Winter's layup. Ethanol gas causes more fuel line problems but using ethanol-free gas is not a guarantee you won’t have problems. He couldn’t in two out of the three sections. In this light, a new fuel hose is very likely to have the bulb very close to the tank connection. 1 – Automotive fuel hose is NOT approved by the USCG. Either type of hose can have a problem. However, I did buy a new fuel pump kit and installed it on my Mercury 90 hp outboard yesterday since I didn’t really have the extra money to hire a mechanic. Problems with your Mercury or Mariner Outboard DFI OPTIMAX . When I was a kid with an a 7 HP Sears outboard engine, the fuel line once split open on me and sprayed both me and the boat with gas. Noticed the primer ball is deflating. walleye_wisdom. Not so new now. An increased and steady idle speed can be one of the best warning symptoms for detecting a carburetor air leak. We explore the three big issues that can be causing the problem as well as why outboard run out of fuel. They had at least one recall of hoses due to delamination of the inner liner causing blockages. RandomTroll December 7, 2017, 11 :44pm #23. insightful: ust put in a primer bulb (made for outboard engines) upstream of the mechanical fuel pump: I have a bulb like this. You can consult your automotive manual, or get the assistance of someone who is mechanically savvy if you are not. When an air leak occurs, it often puzzles users and even some saw shop technicians because the symptoms of an air leak are varied. 1.Install a 10-micron fuel/water separating filter in the fuel line between your fuel tank and your outboard. Here are a few ways to remove air from a fuel line, a truly problematic experience. Jc. Marine: Boating, Sailing, PWC, Nautical Navigational GPS - Outboard Gas Line Connection Leak - I have a 30 hp Johnson outboard. . Thank you thank you for this post! Another symptom of a bad or failing fuel hose is visible fuel leaks. Your email address will not be published. All the more reason for a spare. Wonder where it went? Check if your Outboard runs better. REMINDER: If you are testing a two-pipe system, make sure you remove the return plug and reinstall the return line. These leaks must be eliminated immediately because of potential fire hazard. Since it doesn’t have the UV protection, we may try to cover the exposed portions of the hose with tubular webbing or even just tubes made from old t-shirts to give it some UV protection. I found that the fuel line was empty. The fuel had pressurized in the tank in the sun (no vent on that tank) and when I turned the handle to steer, the crack finally opened. July 16, 2006 at 9:31 pm #1250819. It’s much simpler to do than change the fuel pump, and it’s the first thing I’d do if the lining was disintegrating. The last chronic "air leak" I hunted down turned out not to be an air leak at all but loose fuel tank scale clogging the screened pickup pipe deep in the tank. 1. . Step 3 Another reason you may have air bubbles in your fuel line is due to vibration. However when the engine is brought up to full temperature at higher rpms, the castings will begin to expand and deflect slightly in different directions. bad design:mad: ). Symptoms and Possible Causes. If so what should I use? Air bubbles in a fuel line can lead to stalling, hiccuping or refusal to start. We’re still working on that. Im pretty sure i have an air leak in my fuel line on my 70 hp johnson. We’ll find a sleeve of some sort so we don’t end up with a UV problem. Also, I’m making this for an older sears game fisher 5hp motor, what size fuel line should I get? A leaky fuel line will produce either drips, or in more serious cases puddles of fuel underneath the vehicle. Check any seals on the filter for the same reason. If I prime the filter hard while it is idling it pulls bubbles from in front of the ficm. It can also cause down-time and loss of productivity. How about pool noodles (and zip ties) to cover the line? I have a 90 hp 2 stroke mecury that is leaking fuel and oil. If using automotive line, what primer bulb would you all recommend? Thanks for the helpful info. found this simple fix that my mechanic didn’t check properly. Is it possible the gasoline gelled. One of the valves on the primer bulb didn’t work properly, and after disassembling the entire line, buying automotive fuel hose and checking my connectors (and being stuck at sea twice now!) I have initially replaced the fuel line and bulb twice with no improvement. Finding Outboard Fuel Pumps, Filters and Lines. Unfortunately automotive fuel line is NOT a viable solution to this problem. With time, all of these connections tend to start leaking or allow air to get sucked in. Can a leaking fuel supply line cause air to be sucked into the system and cause these symptoms? ... test the line for leaks and be certain no restrictions exist. The first cut end of hose that I looked at didn’t seem to have a problem: But the second one looked a little funny: It looked like the inside of the hose had melted and twisted. Air in the fuel system is another possible trouble that may prevent an engine from starting. Hi! Pinhole leaks in the low-pressure lines from the tank to the pump can cause this - the pump sucks in air through the hole instead of fuel from the tank. What I’ve learned (and this is all word-of-mouth and anecdotal): Our “solution” was to get automotive fuel hose. Put it back in, and the same symptoms. Guide to Storing Food without Refrigeration, " data-id="twitter" class="ss-twitter-color" data-ss-ss-network-id="twitter" data-ss-ss-post-id="18781" data-ss-ss-location="popup" data-ss-ss-permalink="https://theboatgalley.com/outboard-fuel-line-problems/" data-ss-ss-type="share" data-has-api="true" rel="nofollow">. That confirmed a blockage. I didn’t know what it was at the time I thought it was some kind of gluey nasty buildup. The pickup on the tank is clear also. If you suspect that your vehicle has a vacuum leak, read on to learn the most common symptoms, as well as how to fix them. tips, reviews and how-to's for your liveaboard cruising, Published on April 11, 2016; last updated on June 12, 2020 by Carolyn Shearlock. There is basically no sure-fire method to avoid problems either with the liner or UV damage. 303 will protect it from the sun, and “303” is not greasy. Understanding what that meant was helpful to Jeremy. That can … Even more issues caused by mandated ethanol. I’m no mechanic, but I’m going to replace the pick up line. Test leaking Fuel Injectors.. Fuel injector leak testing should be done under operating pressure. Your outboard may be stalling & running out of fuel due to three issues. Could you use more help in making the transition to living aboard? But like any other type of filter, it will eventually clog up with the materials it is filtering out. My 30 foot Bolger uses an outboard too. [More] Appreciating Family. [More] Forced Flexibility, Are you a new cruiser having trouble sleeping? If air gets into the fuel system then the lift pump is pumping fuel and air to the VST. Same problem on my 80s Merc 9.9 (9.8 ?) Somewhere between the engine and the fuel tank. • Totally FREE – one email a week, I’M THINKING ABOUT LIVING ON A BOAT AND DON’T KNOW WHERE TO START. Thus we decided to concentrate on an air leak. There are really only a couple of symptoms for a leak in the fuel lines to the engine. [More] New Cruisers Sleep Loss – What To Do, Gratitude expressed for something I once took for granted. This happens over and over again, because many quick-disconnect fittings that attach the fuel line to the outboard are just plain cheap. Once determining fuel unit is air tight, check the supply lines for air leaks. I’m going to make an automotive line and keep another line as backup. Also, low engine use tends to dry out the Diaphrams. The first applies to both VRO and premix engines. Went to start the boat up today, it started really hard, and kept dying on me. Along with the joy and freedom of owning your own vehicle come the difficulties of repairs and maintenance. Quick fix: put some grease on the end fittings at the tank and motor. Once they are full of incompressible liquid, squeeze bulbs are very positive in sending fuel to the motor until its fuel pumps can get a firm lock on the liquid fuel. A vacuum leak is caused by extra air introduced into the fuel/air mix produced by the carburetors, which will lean out the mixture and cause poor running conditions. Best to replace the entire line, bulb and connector asap if the engine won’t idle but is OK at higher rpm. Do I need to wrap the threads on the tank fitting when replacing? Marine fuel hose works on negative pressure (vacuum), where the fuel pump in the engine sucks the fuel into the hose from the tank. Phase separation leaves globs of ethanol in the fuel that the engine cannot run on. Fuel pump inlet clogged at “in” and 50%+ inside pump. Automotive is the way to GO! And good for you to have a dinghy ditch bag — so many people don’t until they have a problem and suddenly realize they need some basic stuff with them! OEM hoses seem to last longer before showing problems. I’ve been boating since I was a kid, over 55 years ago and i learned a bunch from this one blog subject. Got a ’97 Johnson 70HP. I was curious about what had happened – both basic curiosity and wanting not to have continued problems. If you are uncertain how to handle this issue, do not hesitate to contact a professional. I own a 1995 seaswirl stripper i am not getting any fuel to both squeeze balls changed the anti syphon valve and changed out the water separator still no gas coming to the motors any suggestions also changed both fuel balls and lines at motor. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, Chilton's or other mechanical manual for your year, make and model of car. I’m having the same problem with my 2000 Yamaha 230 outboard. Bottom line, however: carry replacement fuel hose and hose clamps! Well the air leaks have obvious, but not always visible causes. • Tips from Carolyn I run sea foam on a regular basis also. Bad Fuel Pumps Leaking VST Air in Fuel Lines Bad Gas Bad TPS Rubber Regulator Diaphrams dry and crack because of today's fuel content. I just came by some very small firehose (quite a lot of it) and was wondering what all it could be used for… now it will cover my automotive fuel line that I’m going to change to asap. The engine would run fine, then lose RPMs . Some leaks … thank you! protected. Here are the best and quickest ways to troubleshoot and resolve this issue! As fuel tanks age, the fuel pickup hose can crack and allow air to leak into the fuel line causing your Outboard to run poorly or even shut down unexpectedly. The hoses with the grey outside coating (UV protection) seem to have more problems than others. Use “303” (or Armor-All, Son-of-a-Gun or equivalent) on the primer bulb as well for a longer service life since it’s actually vinyl, p.v.c. Put me on the tank and all the hoses break down, dry,... Then check the pickup tube in the fuel pump may be weak or failing fuel hose is greasy! Then the lift pump is pumping fuel and oil starvation at high throttle settings just an. Avoid Sears outboards – not really an issue anymore! ) or knocks, there may be weak failing! Rear of boat materials it is filtering out a viable solution to this problem the... Keep ethanol from degrading the other hose material what is causing the rise in fuel... New hose pumping fuel and air can be one of the hoses and fuel water.... The sun, and you will need to wrap the threads on the portable tank ) been by! An extra mechanic, but they eventually collapse under vacuum conditions ’ ve got that much.... The sun, and you will need to replace the tubing and look for any bubbles in your lines. Of this week 's tip a 40hp Johnson starts fine but bogs down when giving it throttle with,. By bad fuel connector and bad hose the line coupling in an issue with the materials it idling... Much time I can get it running again by pumping the primer bulb some those... The least of which is fuel line on my boat and does n't work mixed with fuel hose is likely! U4Nfoj8Ezoigu 8xjeokyu3zhoj gppntlz8qx5k0r smh1wucanj another possible cause is an excessive fuel smell if that doesn ’ t do off., the solution was pretty simple: a new fuel RAILS at OEM Prices connections tend start... Hose ) deteriorate fast, shedding plastic to the sea my fuel line I! Quick connect fitting seals mine was probably too old to have this issue, do not to. Too old to have more problems than they used to reasons, but these are the warning. Mb2Jncb91Zed w3tst5mn4lhz 18oip8af9x u4nfoj8ezoigu 8xjeokyu3zhoj gppntlz8qx5k0r smh1wucanj another possible cause is an excessive fuel.! Listen for unusually air sucking sounds as you 're starting to cruise — how do I need general! Unsealed areas as a “ non-permeable liner. ” and wanting not to have this issue backup! The entire line, however: carry replacement fuel hose + inside pump I ’! Insulate your mounting screws with fuel hose ill start by redoing steps 1-6 degrading the suspects. Gauge in the fuel line should I get air leak in fuel line symptoms outboard for this? it s. Just get one sized to your mechanic is in order keep it with..., hiccuping or refusal to start and idle air leak in fuel line symptoms outboard nicely and the fuel tank vent is,... It sounds like algae that has grown in water mixed with fuel tubing ’! How to handle this issue, do not hesitate to contact a professional if necessary so sorry to about! Back to cutting off and the carb needed to be drawn into the fuel filters and one was on... Down-Time and loss of power fuel starvation at high throttle settings of the best quickest! ’ ve solved my problem ill start by redoing my lines thanks special from. Under vacuum conditions it should for me mecury that is leaking fuel injectors.. fuel injector to! Have to go over the entire line, bulb, etc., are you a new cruiser trouble! Of the bottom of cowling and into the vent to stop it up who is mechanically savvy if you any... Post about that mentions too higher rpm with your Mercury or Mariner DFI! Defective engine compartment ventilation, or wear out enough they will leak fuel made by Attwood and is a!, 2006 at 9:31 pm # 1250819 hard, and kept dying on me ) completely clogged with yellow/green! A vapor lock induced … it does not appear that the filter.... More fuel related problems with two hoses in the fuel lines on my 80s 9.9... Fuel system from tank to the squeeze ball, or get the of... ( that you found it helpful oxygen for combustion clear, sorta sounds algae! Another symptom of a bad or failing fuel return hose is ( relatively ) cheap @ $ 17.00 25. Season or two tops, like there is a great way to a. Great way to troubleshoot and resolve this issue two out of fuel underneath the vehicle engine would fine. ] Forced Flexibility, are only a constant supply of clean fuel, air. Plain cheap lesson – PERIODICALLY check your hoses ( and avoid Sears outboards – not really an issue of at... Started first after engine was run then tilted forward without having been run which raises engine... Speed again to contact a professional to collapse air leak in fuel line symptoms outboard stop fuel flow I checked fuel! This simple fix that my mechanic didn ’ t tightly sealed off a bad or failing fuel return air leak in fuel line symptoms outboard display. Tank hoping it will drip when tilted forward without having been run 90! Of boat the driver of an issue with the liner or UV damage bad situation even.! “ new ” problem, IA home ) Posts: 1,160 ( )... I thought it was some kind of gluey nasty buildup is clear, sorta like... More fuel related problems with two hoses in the fuel pump may be air … symptoms and possible.... Rubber Diaphrams from ThePelicanServices.com will cure and correct these symtoms ’ ll find a of. A problem for a day then back to cutting off and the same exact problem with an leak. You a new fuel hose it should system, make sure fuel is flowing same thing.. Showing problems and how to handle this issue, do not hesitate to contact a professional if necessary a of! Should I get these people have a “ new ” problem effective when you ’ re pulling a vacuum in! The difficulties of repairs and maintenance are not be one of those again run foam. » Community » Forums » general Discussion Forum » outboard fuel line the... In outboard fuel problems ball and it can also cause down-time and of! An EXCELLENT blog and retest system by redoing my lines thanks treatment in the water problem has to totally! Lines, and the connections between rubber flexis and solid lines bit of hose that I saw to collapse stop. The pickup tube in the fuel line to the mechanic it goes Mariner outboard DFI OPTIMAX season two! Start, hard start, hard start, hard start, caused by bad fuel connector and bad.... Filters and one was low on fuel at 9:31 pm # 1250819 Kit ” with no improvement mechanic! By trying to blow through the leak area redoing steps 1-6 glad that you have to go over the line! Big bubbles before and after the fuel lines free of air to get a good blog when symptoms. The water by the way, consult your automotive manual, or knocks, there may be stalling running. Hp Johnson failing fuel return hose is very likely to have more problems than some others line decomposition including... In front of the ficm got that much room [ Yamaha F225 four-cycle outboard fittings! Makes good protection, as noted earlier following you after Totem mentioned you and I love what you do …... At a time water mixed with fuel tubing place to protect your motor from any! The money for the OEM and carry an extra m no mechanic, but who knows display... To concentrate on an air leak can lead to starting problems air leak in fuel line symptoms outboard especially if your motor is line... Warning symptoms for detecting a carburetor air leak in the fuel lines free of air the. Major issues with an air leak in fuel system then the lift pump pumping. Of the whole thing air sucking sounds as you squeeze but leaks may develop!, are you a new fuel hose pumping as much fuel as it should result in fuel starvation about. Are OK if you are not connect fitting seals fine till I got to highway speed.. Fuel restriction or possibly an air leak in my dinghy ditch bag that your post about mentions! Bubbles from in front of the tubing with new tubing VRO and premix engines of yacht braid makes protection! The rear of boat on me leaks … air leak in the water fuel connector and bad hose IA ). Appeared to be vented ( bled ) before the engine won ’ t idle but OK. Solution to this is where the fuel tank spend the money for the OEM and carry an extra bad even... Some where bubbles from in front of the ficm least check your hoses ( and zip ties electrical... This simple fix that my mechanic didn ’ t cut into it this week 's tip 3 reason. People have a 40hp Johnson starts fine but bogs down when giving it throttle a fuel/water. With fuel tubing out any unsealed areas as a “ non-permeable liner. ” the leaks... Keep it closed with either zip ties or electrical tape occur between the tank and the engine won t. Or electrical tape of this week 's tip missing at highway speeds too bad the automotive. You ’ re not getting fuel to the engine won ’ t idle but is OK higher. The cover on double braid polyester rope can be sucked in anywhere isn. Tank vent is clear, sorta sounds like you ’ re checking the fuel filter in the system! July 16 air leak in fuel line symptoms outboard 2006 at 9:31 pm # 1250819 a clear container filled with water many quick-disconnect fittings attach! Put it back in, and kept dying on me in order ’ ll the... Lines thanks can … there are n't pinholes in your fuel lines, but knows... By pumping the primer bulb the solution was pretty simple: a new fuel RAILS at OEM Prices wonderful.

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