The capacitor discharge ignition (CDI) can fail. In a 4-stroke, the cycle happens in 4 strokes of the piston or 2 revolutions of the crankshaft. regardless the float valve should be your focus. These are just about all the problems that can occur. 6e0 outboard yamaha carburetor 5hp 4hp engine Professionals. This makes it a little bit easier to deal with maintenance. Deals, Electrical was there a wire clip or "spring" holding the float needle to the float arm? The Yamaha 40 is a little more compact than most other outboards in the same power range, particularly in its chief rival, the Honda 40. For fixing some of these problems, youll need the help of a professional. Its best if you let the pros do the work on this. Axles, Boat Trailer Tie If your motor will rev but won't idle, that's where the issue is, that idle circuit. Plumbing, Fresh Water Boat Kits, Boat Trailer Category, View Anybody have insight on that? And Ask Angler is his little corner on the internet to share his stories and experiences. Like engine misfiring when at high speed, engine shutting down frequently, rough rides, and many more. If this was my problem with a 2016 Yamaha, it would be a warranty repair. Pretty sure the air leak is coming from where the throttle shaft goes through the carb housing. Are you interested in knowing about them in detail? Zincs, Generator This part is relatively easy to get; there are some OEM models available on Amazon.com. Boat, Sell A AskAngler.com is compensated for referring traffic and business to these companies. Parts, Sacrificial Anodes & A fuel system failure can be caused by problems in any one of them. Is this a cold start issue or a flat spot issue within some RPM range? Kits, Seadog Stainless Steel Cup Anchor Box Anchors, Fishing Rod & Reel Almost all 2-strokes have been illegal to sell in the USA since then, as they do not meet the new emission requirements implemented that year. I'm in Panama trying to get my boat ready to depart for Honduras/Belize/Guatemala. Trailer Winches, Shop Hardware, Boat Cabin This can also happen due to dirt. But, if youve something broken and it needs to be bonded, try marine tex or jb weld. I have cleaned the carb it was not very dirty I need some help does the enrichment valve work in this range or only on start up? You don't want to break a tiny wire off inside there.). They are among the most low-maintenance brands available. Boat Repair, Boat Paint & Racks, Fish Finders, Sounders This way, its easy to identify whatever the problem is. What's strange is that the float doesn't appear to be adjustable. Bilge Pumps, Shop Other problems like fuel system failure and lubricating failure are also quite common. your float valve is leaking for sure. These would occasionally fail. This is an expensive repair, as the cylinders will need to be rebored and the piston and rings replaced. . Mercruiser Alpha One Lower Unit Oil Type- Fully Explained! Just scroll down and read the article. Blocks, Marine I store on a motor stand inside a shop. yamaha stroke throttle cable 50hp adjust problem airbrush edited last am Do you have high and low mixture adjustments? Problems in any one of them can be identified with a light visual inspection. fuel level in the bowl is too high. Among those problems, there are 5 that stand out. But, if youve something broken and it needs to be bonded, try. It's all plastic. Hardware, Boat Seat Holding the carb float assembly with bowl off in its normal operating position gently push up on the float till it contacts the float valve and the valve closes. Tubes, Shop Acessories, Fish Cleaning outboard motor synchronize carburetors balance carburetor cleaning Transom Boat Gel Coat - Spectrum Color, Pumps and (Be careful with that one. For fixing some of these problems, youll need the help of a professional. Communication, Auto Pilot Because of this complexity, it is best to let your dealer handle any diagnosis and repairs. Protection, Ladders, Steps, & Deals, Electronics Now imagine the float being at a lower level and bend the tang to achieve that. Took carb off engine and disassembled. If these fail, the problem in the electric starter is more complex and will require your dealer to inspect it. Did you find wrong information or was something missing? Hardware, Boat Plumbing, Anchor Holder, Anchor & Dock Covers, Boat Wiring & Yamaha 40 outboards have been built both ways over the years, though most are now fuel-injected. Servicing a 4 stroke outboard motor after 500 hours of use is ideal. In truth, these potential problems can strike almost any motor and are not truly endemic to the brand or the model. Works every time. & Circuit Boat, Boat Buyers In some cases, youll need to replace something or call a professional. In 2-stroke engines, the oil must be mixed with the gasoline; oil changes are not required as the oil is continuously injected. Accessories, Boat Yamahas are known to be a reliable brand, with over 10 million motors sold worldwide. This is the major reason why they shifted to fuel-injected motors later on. 1. If your fuse is okay though, there could be an issue with your battery. Breakers, Power Packs & Jump Video, GPS Chartplotters & Modern fuel systems on outboard engines are complex. the clip/spring is there to pull a stuck needle out of the seat if the fuel gels slightly, but they can also cause your issue if too tight. If we were talking a '67 single, 2-stroke that vibrated terribly and the vibration wore the shaft, that's barely a "Maybe". You can do it by yourself. Marble, Engine Outboard motors, like all engines, are either fuel-injected or use a carburetor. This is because microbial growth in the fuel sitting in the carburetor can gum up the workings, causing the valves to fail and let in an improper amount of fuel or air. If it still doesnt start, then were afraid youll need a professional to get it looked at. Downs, Couplers, Mounts, Remove the electrical cover and remove the fuse holder with pliers. My 15-HP Yamaha Enduro 2002 2-stroke outboard had been running sluggishly and decided to purchase a carb rebuild kit, which I installed before recommissioning the motor. Bilge Pump, Tires, Rims, & Hub The most obvious is damage to the wiring, which you may be able to tell by visual inspection. For instance, My 2-stroke Toro Commercial mower wore the shaft, not the hole. The design of the motor made cleaning them relatively harder. Well, its a part of your motor. If you bought your new engine in 2010 and live in the USA, you almost certainly have a 4-stroke. That is called the high hours of a motor. Disconnect the battery and clean out the terminals. When all think alike, no one is thinking very much; The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. If you cleaned the carb by dipping it and didnt remove your fuel screw to do that there is probably some restriction in there. Before I dropped 370 on a carburetor Id check with your dealer on the availability of a throttle plate kit with a shaft and bushings. Then you could be wondering what sort of problems you can run into with this. Well, this is just about all the yamaha 40 hp 4 stroke problems. It may not display this or other websites correctly. Accessories, Pontoon Bimini In 4-strokes, there is an oil filter and cavity, and it must be changed every 100 hours or so. Copyright 2000 - 2022, Outdoor Network LLC. Savers, Boat Trailer Guides & Vinyl, Floating Boat yup. A failing valve can let in an inappropriate amount of air or fuel into the engine. It's not fully sealed at the shaft. How often should I service my 4 stroke motor? Best to drain each carb with float chamber drain screw..removes any water/debris/etc. This leads to scoring in the cylinders and the pistons getting stuck. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable While this article focused on their potential problems, that is not an indictment on the brand. If there's a plug over the idle mixture screw like on the Mercs, you need to get that out so you can access those passageways. The basic difference here is that 2-strokes are designed to run at higher RPMs faster, but 4-stroke engines are more durable in the long run. Tops, Bimini Top Almost anywhere you find yourself to be, there is an excellent chance you will have access to service, should any problems arise. yamaha hp outboard stroke I hadn't realized that it was missing, so it was an easy fix. Not all of them happen to everyone though. You have a greater chance of getting a speeding ticket than you do of getting a ticket for fixing your carburetor so that it runs well. "Running motor dry" by turning off fuel doesn't really remove all fuel/water/debris.leaves some in bottom of float chamber to dry out/gum up, etc ok, but why? . Deals, Pumps & Plumbing You are using an out of date browser. Manufacturer, Boat Tables & An experienced powerboater may be confident enough to replace it independently, but getting a mechanic to do it may be wiser. Winches, Boat Motor Supports & Parts, Wash Down Boarding, Paddles & I always flush after use and turn gas valve into off position to allow gas in carb to burn out so no gas left in carb. The average speed is however 40 km/h. This can cause problems ranging from simple rough idling, misfiring at higher speeds to the engine cutting out constantly. Visual inspection or working with the priming bulb will reveal any failure here. You can do it by yourself. Combos, Fishing Tools & Accessories, Boat Lift Canopy Some 2-stroke Yamaha 40 outboards, particularly older models from the 1980s and 1990s, had a mechanism that injected oil into the fuel rather than requiring it to be pre-mixed. Carburetors in engines with low horsepower like this one need to run more often than others. Did you remove both high/low speed jets and spray carb cleaner through the passageways? & Rings, Prop Nut Kits & Terminal Now the throttle shaft opens and closes properly, but the engine runs poorly. Question: How often should I service my 4 stroke motor? Glad you got your problem solved. Hardware, Boat Trailer This combustible mix is what allows your engine to run. non-adjustable and that saddle type float needle retainer isn't normally a problem. yamaha outboard 115hp stroke 6n7 starter 4cyl v4 marine The CDI is the most recent Yamaha 40 engine that can store information to be connected to a dealers computer and diagnosed. Systems, Lowrance Hook2-4 GPS You have to remove the alum. Recharge your battery and put it back inside. Parts, Inflatable In the old days, fuel was delivered to the engine in a gravity-feed system, but that is no longer the case. The max record is 55 km/h. Yeah carb had white corrosion build up on the outside of it. JavaScript is disabled. This repair is quite expensive. Telescopes, Covers and cap over adjusting screw and remove adjustment needle. Lighting, Marine Teak This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. GPS Chartplotter and Fish Finder Combo, Find Ventilation, Interior & Cabin But, a Yamaha fuel pump problem is not that hard to fix though. Starters, Marine Solar Power If this is your first visit, be sure to Bullet Skimmer, Paint and & The average speed is however 40 km/h. JavaScript is disabled. Required fields are marked *. Another way to check for air or vacuum leaks is to use an UNLIT propane torch to supply gas to locate the leak while motor's running. Please charge the battery and reconnect it. stroke 15hp 66m outboard f15 Lights, Boat Trailer It can go either way, on some it meters the air, on others it meters the fuel, so I never say anything but turn it either way and see what helps. These 5 problems are mostly faced by people. Almost certain that the float is set wrong. Suzuki 2.5 fires 3rd pull, same gas, same storage, same everything.I have the cheapest Troybilt power washer sitting right beside it gas stays in it for months at the time use it about every 3/4 months cranks 3rd/4th pull. and what's the story with clogged strainer? Seats, Pontoon Boat Seats & fuel should not normally be nearly this high. Trolling Motors, Shop Towers, Tow Ropes & You can face this problem if you have a clogged oil filter. Storage Pumps, Livewell Aerator Pumps Your email address will not be published. Oars, Wakeboard, Wakesurf & Hed been an amateur sailor for over 15 years now. You do not have to search very far online to find how much people like them and why: One of the biggest pros of the Yamaha 40s (or any Yamaha) is the reliability of the motors. Then dealer says running it on flush not good enough, need to run it at high RPM in the river. if there is no sign of water in the gas can but there was in the motor tank then it must be from condensation. For a better experience, please enable JavaScript in your browser before proceeding. These microbes can clog the internal workings which can cause the valves to fail. If youre required to replace the CDI just in case, get the help of a professional. Harware, Marine Nuts, Bolts, & Fuel enrichment occurs only when the motor is cold.