I was well equipped to wait for a tow, had enough line already rigged as a bridle ready to throw at them and anchored in the meantime. Runs fine at 3/4 speed. I’m a little confused about what you have done so far. Got a ’97 Johnson 70HP. 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. Phase separation leaves globs of ethanol in the fuel that the engine cannot run on. With time, all of these connections tend to start leaking or allow air to get sucked in. When I give the boat throttle it starves for gas. The fuel line, bulb, etc., are only a year old and I checked all the clamp/connections. Some leaks … 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. If you have air in the fuel line, the pump isn't pumping as much fuel as it should. preparing to cruise • overcoming problems. Had it happen to me. Vapour has two main causes. There are several reasons, but these are the biggest of them. But dies off at full throttle. REMINDER: If you are testing a two-pipe system, make sure you remove the return plug and reinstall the return line. Air bubbles in a fuel line can lead to stalling, hiccuping or refusal to start. Many thanks, Some leaks will do both. We’re going to see more and more fuel related problems with our outboards. I’m having the same problem with my 2000 Yamaha 230 outboard. Brandon West, these people have a good blog. Some … This leans out the fuel mixture which raises the engine speed. Click here. When loosening the mounting screws, be very careful to only remove 1 at a time, and remember to tighten them all back into place. After that its fine. You have to go over the entire fuel system from tank pickup to injectors. Jc. If so what should I use? Same Xantia as in Smokey start thread. I’d say you have an EXCELLENT blog! Thanks. Only several entries above mention the possibility of a clogged or closed fuel tank vent, which would seem to be indicated by my own problem with a 2006 Hurricane boat with 150 HP 4-stroke Honda outboard, I say this because my problem is always an easy start, then good operation at full throttle for a predictable amount of time … and then a stall requiring a re-priming using the bulb. We’ll find a sleeve of some sort so we don’t end up with a UV problem. Big Sky Country Helena, MT (Adel, IA home) Posts: 1,160. Ethanol rotted the fuel lines on my truck in 3 years. Boats.net carries thousands of OEM fuel system parts. 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. These issues … The fuel filter is in place to protect your motor from receiving any impurities that may have made it into the gasoline. Blow into 1 end of the tubing and look for any bubbles in the water. Outboard fuel problems. And it wasn’t cheap either. Quick fix: put some grease on the end fittings at the tank and motor. A leaky fuel line will also cause a drop in fuel … Here’s how to rest better. 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. Noticed the primer ball is deflating. Help is here: Overcoming the First-Year Learning Curve (a free mini-course from The Boat Galley). 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. Anyone know what this stuff might be? Just bypassed an inline filter not required by Mercury. 1 – Automotive fuel hose is NOT approved by the USCG. If attempts to turn down the idle speed adjusting screw have failed (old-make carburetor), it means the blend of air to fuel ratio has changed in favor of too much air passing into the intake manifold. The Westerbeke has an electric fuel pump on it, and if we did the bleed procedure — 30 to 60 seconds of pumping the fuel — it would start again and run well . . When the symptoms appear I can get it running again by pumping the primer bulb. Ethanol is a problem for a lot of reasons, not the least of which is fuel line decomposition, including delamination. Thanks for the information. I would suggest placing the non-uv treated hose within one of those split wire looms that are flexible plastic and split lengthwise. If you’re not getting fuel to the squeeze balls, I’d look at the pickup tube in the tank. Participant. I tried it myself. In fact it's very common for air leaking engines to start and idle very nicely. Line from tank to motor (90hp mercury) completely clogged with this yellow/green grainy stuff. Even if the engine will start, air in the fuel system will cause the engine to miss and knock, and perhaps to stall. Find results that contain... All of my search term words of my search term words It can also cause down-time and loss of productivity. Dave, my husband, began by trying to blow through the old hose. There are really only a couple of symptoms for a leak in the fuel lines to the engine. Is the tank vent open? Your email address will not be published. Wonder where it went? Just replaced fuel pump and all fuel lines. Even a small air leak can lead to starting problems, especially if your motor is fuel injected. Your outboard may be stalling & running out of fuel due to three issues. How long did the gas sit in the hose? The lines were full of that lining. • Popular articles you may have missed Ethanol gas causes more fuel line problems but using ethanol-free gas is not a guarantee you won’t have problems. Louis Maconi mine was probably too old to have this issue, but who knows. Misdiagnosis often causes unnecessary service costs and part replacement. Squeeze the primer bulb and make sure fuel is flowing. 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. No wonder fuel couldn’t get through! The problem has to be in the tank, the hoses from the tank to the squeeze ball, or the ball itself. Is there a fuel filter in there (that you bypassed when on the portable tank)? Troubleshooting Outboard Fuel Lines. We’ve used non-ethanol gas more often than not; when we’ve used gas with ethanol, we used a gas additive as well. The Boat Galley can be overwhelming with over 1,200 articles. 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!) Basically the engine will ... mb2jncb91zed w3tst5mn4lhz 18oip8af9x u4nfoj8ezoigu 8xjeokyu3zhoj gppntlz8qx5k0r smh1wucanj Another possible cause is an air leak in the fuel line. The stall will also occur after a very long idle. In fuel-injected outboards, the excess gas that causes flooding might result from leaking injectors, failed engine temperature sensors or a failed electronic control module, the engine’s on-board computer that controls engine operation. ... test the line for leaks and be certain no restrictions exist. This is a great way to troubleshoot a weak puel pump. If any of my engines “drank” fuel that fast I would despair of the whole thing! I finally got it started and took off, got about 400yd away from the dock, stopped to get something in the boat and the motor died. 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. When an air leak occurs, it often puzzles users and even some saw shop technicians because the symptoms of an air leak are varied. tips, reviews and how-to's for your liveaboard cruising, Published on April 11, 2016; last updated on June 12, 2020 by Carolyn Shearlock. We knew that the leak had to be somewhere between the tank and the fuel pump. This is a great blog. and then come right back . engines (3/8″ to 1/2″) and don’t fit small outboard engine fittings. and so on, eventually dying. I recommend looking for: - loose, broken or missing clamp on a fuel line filling - cracked fuel hose - cracked fuel fitting - loose screw-on fuel filter element/cup (if you have such a thing. The EPA is fast-tracking regulation to shift E10 to E15 and to increase the size of “urban” areas that prohibit off-road application of non-ethanol fuels (including marinas). Then check the pickup tube in the tank — make sure there are no blockages. And it can break free (delaminate) from the outer hose and twist itself up. Nice thread, thanks! Thankfully, I also had pretty much every thing in my dinghy ditch bag that your post about that mentions too. Any suggestions would really be appreciated. 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. Consider an air leak in the fuel line on the input side of the pump, or as d.boat says, in the incoming oil line (or cap). Check to make sure there aren't pinholes in your fuel tubing. 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. Fuel leaks. 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. New hoses have an impermeable liner to keep ethanol from degrading the other hose material. A blocked outboard fuel line prevents fuel from getting to the motor. The Vacuum Method (Suction Line Test) This test will be most effective when you have a shut-off valve near the oil tank. Read our privacy policy. The same goes for the barbs that attach the fitting and the fuel line, and/or the hose clamps that secure them. Common for air leaks have obvious, but these are the quick fitting! Shedding plastic to the motor detroit diesel ran fine till I got to highway speed again it. 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