With a spark plug wrench, remove the plug and visually check for a thick, sooty layer or chunks of carbon material anywhere on the electrode. The late spring morning is calm and cool as I crank start my small, two-stroke motor. Move the compression gauge to the next cylinder. The white smoke that comes out of the outboard motor is produced by this water vapor. We and our partners share information on your use of this website to help improve your experience. That means if there is a clog in the cooling system, the engine heats up and turns water into vapor hence producing a cloud of white smoke.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'takeocean_com-large-mobile-banner-2','ezslot_6',109,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-large-mobile-banner-2-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'takeocean_com-large-mobile-banner-2','ezslot_7',109,'0','1'])};__ez_fad_position('div-gpt-ad-takeocean_com-large-mobile-banner-2-0_1');.large-mobile-banner-2-multi-109{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}https://youtube.com/watch?v=Cl1HculPqCwVideo cant be loaded because JavaScript is disabled: Why Outboards OVERHEAT! Join the Duo to stay informed with trusted fishing advice! Using quality oil will go a long way to drastically reduce the amount of smoke your motor pumps out. On the other hand, four-stroke engines have an oil pump that pumps the oil to the outboard power-head. Not all smoke is created equal. What causes EXCESSIVE smoking of a 2 stroke? Turn on the water and start the engine. But if it's excessive then you've got a burning oil problem, a rich fuel condition like noted above, a bad spark plug or a malfunctioning power valve. The design limitations of a mechanical fuel injection system limit this optimization somewhat, although do offer some other advantages. Block and oil pad heaters are an inexpensive and sure solution to this reoccurring problem. What causes EXCESSIVE smoking of a 2 stroke? - ThumperTalk You may also like: 10 Crucial Things To Know Before Buying Your First Speargun. https://www.youtube.com/c/WayneTheBoatGuy Support me by becoming a Patreon! By heating, the marine engine converts the water in this circuit into white smoke. These piston cooling nozzles have many advantages such as significant fuel economy, much longer engine life (thanks to more efficient temperature control), and much lower NOx emissions ( therefore a much less polluting boat engine). You may have just done an engine oil change. 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What Causes a Smoking 2-Stroke Boat Engine? Every combustion cycle has a bit of oil injected and this keeps everything running smooth. With two-stroke engines, they burn oil, and there is no way you can change that fact. Hoping that this defect will be erased on the new generation of boat motors. If there is a fuel overflow, the boat engine will produce black smoke.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,100],'takeocean_com-leader-3','ezslot_9',113,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-leader-3-0');https://youtube.com/watch?v=Cnvspzx9DmsVideo cant be loaded because JavaScript is disabled: How To Clean Your Outboard Fuel Injectors At Home (Easy Way) (https://youtube.com/watch?v=Cnvspzx9Dms). The color, in addition to the quantity, of the smoke emitted by your boat motor can tell you a lot about what is going on. "Usually, white smoke is a sign that the engine is running hot," says Kevin Dault, of Maple Leaf Marinas. Once the motor gets warmed up, less smoke will be made. Some outboards are just more finicky and will reward you with rough starts and more smoke when stored or shut down improperly. For those problems that you cannot resolve on your own, ensure that you contact a professional for help.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[120,600],'takeocean_com-banner-1','ezslot_15',104,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-banner-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[120,600],'takeocean_com-banner-1','ezslot_16',104,'0','1'])};__ez_fad_position('div-gpt-ad-takeocean_com-banner-1-0_1');.banner-1-multi-104{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:15px!important;margin-left:auto!important;margin-right:auto!important;margin-top:15px!important;max-width:100%!important;min-height:600px;padding:0;text-align:center!important}. Run it until it reaches its normal temperature. When burning, this water will create white smoke. (Ultimate Buyers Guide). I've tried to adjust the oil linkage rod (I have the Mikuni oil pump). Why is it normal to have a boat engine that smokes white? If the drops do not evaporate, touch the riser with your hand. Why Does an Outboard Motor Smoke? - Anchor Travel If your fuel injected 2-stroke outboard is new, then it may be smoking. Finally, the problem may come from a leak in the cooling circuit. Daniel Defense firearms, parts and accessories. Evinrude - white smoke - Moderated Discussion Areas - ContinuousWave 5. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,600],'takeocean_com-narrow-sky-1','ezslot_19',126,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-narrow-sky-1-0');So much smoke in the extreme can be dangerous, and that is why you need to fix them immediately. In none of these cases have I been able to ascertain exactly what has been causing the white smoke. The CAV pump that was used on the 210, which could last 10,000 hours or so, was now only lasting a hundred to 500 hours before excessive wear on the cam plate was sending metal particles throughout the injection system causing very poor injection properties which led to incomplete fuel burn. Why Does My Outboard Motor Smoke? - Born Again Boating Often, black smoke is simply from poor gasoline that is too rich for your marine engine. If the boat motor is idle most of the time, it will not get hot enough to burn off exhaust/carbon. The engine actually appears to be running smoothly at all RPM's, cruises w/o effort at 4000-42000 RPM. It comes in a wide range of different sizes and works well in a number of different 2-stroke . Just enter your email to subscribe to our blog and receive notifications of new posts. What is white smoke? - Seaboard Marine 8 Reasons For Smoking Boat Motor: Main Causes And Fixes - Take The Ocean How to fix a boat engine that smokes white? Come join the discussion about engines, modifications, classifieds, troubleshooting, fishing, boating, poles, maintenance, and more! Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. GUIDE: How to fix a stalling boat engine? Engine Burning Oil If your boat engine starts to produce blue smoke, then it is burning oil. Affiliate disclosure: Any/all of the links on captain-ocean.com are affiliate links from with we receive a small commission from sales of certain items. Finally, although more rare, it should be noted that white smoke can also appear at the outlet of an outboard motor if the coolant is too cold, if there is a problem with the blowing of the piston rings which causes the compression ratio to be too low, or if the fuel injection system is incorrectly adjusted. The other reason is that there could be a water leak inside the gasket or the cylinder head, which is allowing water into the cylinder.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'takeocean_com-narrow-sky-2','ezslot_22',112,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-narrow-sky-2-0'); So, you might want to pay some close attention to your specific situation. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. If that is the problem, when you stop, the bag or grass will fall off, and the engine will cool off immediately, and you will be good to go.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'takeocean_com-leader-4','ezslot_10',110,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-leader-4-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'takeocean_com-leader-4','ezslot_11',110,'0','1'])};__ez_fad_position('div-gpt-ad-takeocean_com-leader-4-0_1');.leader-4-multi-110{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}. If the lack of temperature comes from an external element such as the air temperature, then you can heat the engine artificially. An example of data being processed may be a unique identifier stored in a cookie. I'm outboard is smoking alot what might be the issue my oil ratio is 50/1 it's ran like this for 3 days and she's burned around 100l of fuel In most cases, the problem comes from an obstruction of the water inlet by algae or plastic waste. How much White smoke coming out the exhaust for a 2 Stroke is normal? If you have a two-stroke outboard, then you dont have to worry that much. If the leaking stops when you stop the engine and you are on salty water, you should warm the boat motor and then shut it down.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,600],'takeocean_com-mobile-leaderboard-1','ezslot_12',111,'0','0'])};__ez_fad_position('div-gpt-ad-takeocean_com-mobile-leaderboard-1-0'); The leaking water will evaporate, and the salt will give you a clue as to where there is a leakage. Indeed, during the first outings at sea, the electronic control system will inject more grease than expected into the boat's engine. All rights reserved. Solutions to repair a boat engine that smokes white, Conclusion on White Smoking Outboard Motors, your gasoline or diesel is of poor quality. They operate by mixing oil with the fuel using carburetors or reed plates. Have it inspected promptly before starting or using it again. We also participate in programs from eBay, CJ, Clickbank, ShareASale, and other sites. Thank you! Obviously, the above scenario starts with item 6, failed components. But, as you can see, temperature comes into this as a fix-all. But these are the very reasons that, before the temperature comes up to a certain level, can cause an unacceptable level of white smoke. Check that your gas tank is not leaking. FishingDuo.com 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. Sometimes it is not your mix ratio that is causing a problem. If it runs poorly -- as if it's starved for fuel -- there may be a small leak around a seal or gasket. I havent found a single engine yet that couldnt benefit from a couple of hundred watts from Mr. Edison. Change fuel if the problem started after filling your tank. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. An onboard charger will improve the battery performance and life. To understand why your boat is smoking, you have to know the type of engine you have. For ignition to occur, the gas tank requires a lot of ventilation. If its smoke then thats just oil and its normal. There are oil pad heaters and block heaters that are really economical and allow you to raise the temperature on start-up. link to How To Choose And Install a High-Performing Boat Battery Charger? Technically, the white color is caused by the light-scattering characteristics of the re-condensed droplets of fuel (un-burned or partially burned) larger than one micron. These new generation boat engines have an innovative fuel injection system. As you remove the plugs, write the cylinder number -- the top cylinder on the starboard side is "No. Ensure that you get rid of all the old fuel that has ethanol when you keep your motor for a season. When the engine heats up, and there is some clog, it will give an overheat alarm in white smoke. When determining the proper oil and fuel mix, always follow the recommendation of the motor manufacturer. Continue with Recommended Cookies. You should also check if there is any blockage to the pumps as that can also cause damage. Boat motors, especially two-strokes, commonly smoke because of an improper fuel to oil ratio or when the motor runs rich on fuel. 07-15-2021, 10:12 AM. While it is expensive, it is a small price to pay for a more pleasant day on the water. During normal use of the marine engine, the exhaust gases should be colorless and painless. An outboard motor mechanic should be your next call. Brands have designed boat engines that smoke to protect them! In most cases, the problem comes from an obstruction of the water inlet by algae or plastic waste. If so, all you have to do is free the propeller from the stuck fishing net or seaweed. We have listed all the 'normal' situations below: If you inherited a 2-stroke boat engine from 1990 or older, then it's normal for it to smoke. Another not-so-funny thing that can cause white smoke from your exhaust pipe is a cracked cylinder head or engine block. What can we do about white smoke? So you don't have to worry. If not, clean the hull, Check that your propeller is suitable for your boat. If it is no longer tight, replace it. As avid anglers, Joshua and Kendle spend their days exploring the waters of the Pacific Northwest and aim to teach others the joy of fishing. A gap gauge can be found at most automotive stores. If they are damaged or no longer work properly, they will need to be replaced. Oct 23, 2014 Asked this in my intro thread but thought maybe its more appropriate here; After raising my mercury 9.9 about 3 inches to make it even with the bottom of my boat I've noticed that my motor is smoking more; I attribute this to 1 verheating? To reduce smoke in a 2 stroke outboard engine, it is important to ensure that the fuel mixture is at the correct ratio. How To Choose And Install a High-Performing Boat Battery Charger? Enjoy banner ad-free browsing with Dedicated To The Smallest Of Skiffs Plus. Will Charpentier is a writer who specializes in boating and maritime subjects. Retarded (incorrect) ignition timing. This could signify that oil spills have occurred on your engine. 1 cylinder. This is why most two stroke outboards require fuel pre-mixed with oil. The most problematic exhaust fumes are blue smoke and black smoke. A marine engine produces soot when it does not burn its fuel properly, lacks combustion air or has excess carbon deposits. Dec 4, 2013. Evinrude Repair Manual -- 2.5- to 250-Horsepower Models, 2002-2007; Seloc Marine, Mercury Outboards Repair Manual -- 2.5- to 250-Horsepower, All Engines 2001 - 2009; Seloc Marine. Within the last few years, Ive seen and been directly involved with white smoke concerns with Yanmar, Cummins, Ford, and Volvo engines. As the fuel lacks cetane, it does not burn properly and atomizes into droplets instead of disappearing as a gas. For example, an injector no longer closes. On the new Cummins engines that I install, like the 350 C, white smoke at start-up can be of concern in many circumstance. Always check to see that all the gas tank vents are not obstructed in any way. Everything is normal. You will have to put the engine in neutral and clean the propeller. The scaling of this circuit produces overheating. Find out if the problem is a clogged injector; if that is the problem, it can quickly be resolved. Have you checked your plugs after running that cleaner through? Indeed, the new diesel boat engines with electronic injection are designed to no longer have this kind of inconvenience. This would reoccur after 24-48 hour shut-down and the sequence of this obnoxious white smoke would slowly get worse over the next few hundred hours. Is it bad to let a 2 stroke idle? Why is it normal to have a boat engine that smokes white? Take note of how the outboard performs when returning to the dock or marina. But not all fumes are cause for concern. He is also a certified marine technician and the author of a popular text on writing local history. It is mainly due to exhaust buildup, which causes fuel to burn and produce smoke. At start-up, the marine engine is cold and it is normal to see white smoke appear. The engine starts up OK and IDLES AND RUNS AT . That in that makes the oil to be sucked into the crankcase lubricating the engine. Finally, the problem may be wear on the scraper rings or carbon buildup on the valves. JavaScript is disabled. Check that nothing is obstructing the propeller. Outboard engines, unlike those of cars, they are designed to run 6000rpms while the car only runs 2200rpms. 2-Stroke: How much smoke is too much? (White Smoke) In this case, the 2-stroke or 4-stroke boat engine will have trouble starting or worse, it won't start. The most common sense is leaving the outboard tilted after running it. Many can cause your boats valves, injectors, and rings to have carbon buildup. Replace the gasoline in your tank if the problem appeared after refueling. Check the oil level in the engine and add oil if needed 10 Crucial Things To Know Before Buying Your First Speargun, How Much Is My Boat Worth? A dirty propeller can also cause black smoke. I mix gas/oil 50:1 accurately. Take The Ocean is the ultimate resource for learning everything about boats, water fun, underwater and ice activities, or information when trying to find the right one. Otherwise you have a problem!if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'captain_ocean_com-large-leaderboard-2','ezslot_6',139,'0','0'])};__ez_fad_position('div-gpt-ad-captain_ocean_com-large-leaderboard-2-0'); You were happy to go out to sea with your brand new injection two-stroke boat engine! Of all the possible causes and, from my experience, the lack of temperature at which the fuel is burning within the engine is the single biggest cause of white smoke. A number of things can go wrong within the workings of a 2-stroke engine. This should not solve the problem 100% but it will allow you to use poor quality fuel without damaging your boat engine. Youll still get improved start-up and oil circulation, less moisture build up in the engine room spaces, and a much nicer environment for the engine to live in (warm and cozy). Two Stroke engines burn oil. And at the first start, the boat engine emits white smoke Don't worry, it's not a manufacturing problem whatever the brand of your boat engine (Yamaha, Mercury, Suzuki, Johnson, Zodiac, Hondas, etc.). If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Repairing an outboard motor that stalls on acceleration. Excessive engine smoke on startup - Yamaha Outboard Parts Forum There are several possible causes: A 2-stroke boat engine that smokes black is a sign of poor adjustment. Heres Why Trolling With Spinning Reels Isnt Crazy, How To Land Big Fish From A Pier Like A Boss, The Right Size Bass Fishing Rod For Every Situation, Here Are The Only Situations When You Need A Fishing Swivel, 9 Best Smallmouth Bass Lures That Wont Let You Down, Are 1 Piece Or 2 Piece Fishing Rods Better: An Honest Answer, Simple Tricks to Get Fish Smell off Your Hands. Items you will need Outboard test tub Garden hose Spark plug wrench If it is no longer tight, replace it. The simplest and most effective way to control this is by using heat to solve the problem. Of course, during the first few minutes of running, the operator wished it wasnt running, as clouds of white smoke would billow from the exhaust. 5 Jul 25, 2014 #1 I have a 2006 150 mercury optimax. If there is no oil, then the engine will not run as there will be no lubrication type. - https://amzn.to/3cadrYUHose removal tool - https://amzn.to/36wZ12GKill switch lanyard - https://amzn.to/3omhYxfMarine grease - https://amzn.to/2RvrMFVSocket set - https://amzn.to/2HzAi4OVHF handheld - https://amzn.to/3jeaER9VHF radio - https://amzn.to/2SyeysiVoltmeter - https://amzn.to/32L8e6FWheel Chock - https://amzn.to/3ii1MbR(*Check compatibility with your particular engine)As an Amazon Associate I earn a small commission from qualifying purchases Follow me on instagram! It is not necessarily bad because some oil is expected to be consumed this way in a two stroke. And yet this engine is a beauty in all other modes of operation. 3. I used alot of OMC carbon guard and Seafoam at the same time and the gas in the tank is over 1 year old.