Gas Coming Out Of Exhaust 2 Stroke Outboard

First I noticed that steam would come out of the tailpipe on passenger side but not my driverside. If you were running at low idle for a long time and the oil is black or burned looking it may just be unburned two stroke oil coming out the exhaust after sitting. We wanted a 1/2 ton capable of pulling a 10,000 lb 5th wheel camper with plenty of power on reserve and we found it. is this a big problem? - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. If #1 or #2 are within. 9l engine it before it broke down engine light blinking then would not crank, had to tow it. The engine is leaking oil. Thanks Its the two brass looking tips. However, with the way it comes out of the hole and the mid range punch it has I’m leaving well enough alone. Merc 50hp outboard - carbs leaking gas I'm just getting into small go-fast boats - A friend and I recently bought a 13' DUX hammerhead and an old 1975 merc 50 hp 4-cylinder outboard to go with it. Here is latest boat outboard engine restoration video. 5HP Heavy Duty Outboard Motor Boat Engine w/Air Cooling System CDI Product Description Cylinder Scoring is a serious damage,which caused by improper use and will cost you a lot of money to repair the motor. It's also worth noting that the 155hp 4 stroke is much more reliable than the 300hp model as well if you're shopping for one. and you may even get exhaust gas coming out of the pee hole which is exactly what happened in my case. The motor is not locked and when the cord is pulled it sounds like it wants to start. I started using these motors on one of my boats back in 2004. 006 clearance. I love the smell of two-stroke exhaust in the morning. Mini 4-Stroke Series. At this point they often don't picture what is happening next. More condition of spark plugs. 96 evinrude 35hp White Milky out the Prop Exhaust. Some outboard cylinders simply crack from heat and stress. When it does start it will only run for about 5 seconds and then it dies. 250 kx 250 two stroke blowing too much oil out exhaust? two stroke but this is a little extreme. Exhaust gas does not come out of the engine in one continuous stream. So I pulled the carb off my other 028 that runs fine and put it on the troubled saw. Because the intake and exhaust valves are closed, the combustion of the fuel takes place in a totally enclosed (and nearly constant volume) vessel. Which leads me to believe it's coming out the exhaust. No experience with outboards, but 2-cycle engines overheat when not lubricated enough, i. What could cause unburnt fuel to come out the exhaust?. There's a number of baffles in the exhaust hsg, but I don't think there's any extra water injection. Ive not seen that happen before and was wondering why that would happen here are my theories 1. 3hp single-cylinder 57cc four-stroke portable outboard and tops out with the BF250, a 3. The heck are these and why is this doing? Kinda werid to me exspecially gas coming out. New 2 Stroke 3. Has anyone ever had gas come out of the air filter when the bike is just sitting there? It is a bali 13 250cc, honda clone motor. Waiting until you get home increases the chance that you will forget to add oil. Buckda: posted 10-06-2005 05:37 PM ET (US). Backed by decades of marine power innovation and product leadership, Mercury FourStroke outboards (2. Here is a listing of common color codes for Yamaha outboard motors. 3- If exhaust elbow (riser) is clogged where the exhaust hose connects, it will create a hot spot where there is a lack of water flow which will cause the little bit of water trickeling out to burn and steam on the way out. Ive got a 2 stroke racing motorbike, but recently ive noticed some black goo dripping from my exhaust. 5hp 2 stroke outboard blocked cooling system? Cooling water has stopped coming out of the telltale My Mercury 2. Note that we said "vacuum signal. Pennzoil Marine Premium Plus 2-cycle Synthetic Blend Oil is recommended for pre-mix and injector systems including today's modern direct-injection engines. Re: Why is black oil coming out of exhaust? The black oil is unused excess oil which is normal, especially if the engine was fogged before storage. Keeping a wary eye on raw-water cooled manifolds and risers can prevent the premature death of your engine. Ralph, aka "The Outboard Wizard", owner of Lindenhurst Outboard Service Inc. 1990 yamaha 90 2stroke bogging problems any ideas. Shop securely. Those old outboards were built tough, and plenty of them are still running strong today. The more cylinders you have, the closer together these pulses run. yamaha's standard upper casing exhaust kit for 2004 and newer f200, f225, and f250 models mar-exhkt-04-00. I fully understand that the compression ratio is too low to take advantage of the octane. Where could it be coming from? My reservoir is less than half full. Four-stroke dirt bike oil comes in a variety of weights like 10w-40, 20w-50 and so on. 96 evinrude 35hp White Milky out the Prop Exhaust. Backed by decades of marine power innovation and product leadership, Mercury FourStroke outboards (2. Disconnect the gearshift rod coupling. So most of the dealers will stop selling it as they will be undercut by HK now. It was nice outside, so the BIL and my coworker decided to go out and do yardwork, put up lights and clean gutters and such. I've got this 15 HP Evinrude E15RL4SSE outboard engine on which the oil turns milky white and there is water spitting out of the exhaust hole. Only 87 pounds. GENERAL : 6A1. On a 4-Stroke (usually Honda) the smoke typically blows out of the crankcase vent rather than the exhaust pipe. Look at the back of a 2 stroke motorcycle. How To Fix White Smoke From Exhaust Issue. Didn't want to go Let it sit 2 hours and when I came back fuel was leaking out the exhaust!! Now I'm trying to get the gas out by cranking till I can't feel my arm. They have become the engine design preferred by most marine engine manufacturers to meet government mandated exhaust emission standards. One more thing. Note: I am used to running the 24 yellowfin bay boat with a Mercury 350 Verado or Mercury Racing 400r Verado. Keeping a wary eye on raw-water cooled manifolds and risers can prevent the premature death of your engine. If you buy an aftermarket rebuilding kit, NEVER rely on the generic specification sheets which come in the kits. Most outboard engines are two stroke petrol units using an oil/petrol mix although four stroke outboards are growing in popularity and the use of propane gas for both 4 and 2 stroke engines is also becoming more popular. I have a 78 evenrude 115 outboard and there is oil running out of the exhaust holes and out from behind the prop. Can the FPR be the cause of fuel coming out of the tailpipe? Lots and Lots of fuel I don't mean a drop here and there, I mean where the back of the car (the drive way) has this streak of gas that is about 2 yards and a nice little puddle underneath the tailpipe. I know how to fix a 4 stroke engine and how they work, but know very little about 2 strokes. Serial # 0T809205. The combustion increases the temperature of the exhaust gases, any residual air in the combustion chamber, and the combustion chamber itself. It just does not get blown out of the exhaust outlet because of low pressure connected to low rpm. Synthetic oil and filter recommendations as well as motorcyle (including Harley Davidson) lubricant recommendations. ) Gas mixed with too much premix - although we mix it 40:1 with Maxima 927 or whatever thats called. the 2 stroke. Check your factory shop manual or the carburetor manufacturer’s manual. I am absolutely sure the Yamaha 250 SHO has more in it with a little playing with the prop. Easily find the parts you need using our free online parts catalogs. Time for a oil change if it does. Part of me think I'm paying for crap that is not broke (I tested the thermostat that he took out 50 times and it never stuck with me). Additionally, even though the 7. Traditionally, because of the simplicity and light weight, 2-stroke outboards have dominated the outboard market. winterizing outboard motor with Boat in the Water, then on the trailer for winter storage. This is part of a 2 stroke it's carbon in the exhaust ,Get some outboard decarbon spray an follow the instructions It will make a mess so don't do it in your drive way. Ok, I have an evinrude 6 hp that exhaust comes out of the pee hole at idle, sometimes water, sometimes exhaust, rev it - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. On earlier designs where the keyway in the shaft traps the key, and it is also stuck in the impeller, it is necessary to drill out the brass key to free the impeller. If the oil is clean or milky amber color then you have a seal problem that needs attention before you run it again. It was the 3-cylinder, 814cc 55hp, the first-ever OMC motor to feature a through-prop exhaust and the first motor to adopt the slimline, straight-edged external profile that it (and. What could cause unburnt fuel to come out the exhaust?. Its hard to show what i did here with just pictures. 14hp Briggs and Stratton blows smoke/oil out exhaust I was given a neglected zero turn mower that had been used regularly for the past several years. It blows out gray or white smoke when I hit the gas not sure if I’m at a standstill. On the weekend my Yamaha 9. exhaust on yamaha 2 stroke 15hp My new (to me) 15hp yammy outboard 2 stroke is pretty smokey am i wrong in thinking that exhaust should be coming out under the water? as it seems to be coming out at the back of the engine near the water/cooling exit hard to see as it is in a well and not able to remove (prop to big). I know a lot of folks here are running Yamaha 25 2 strokes or have in the past. i do not know if this is causing the problem or not, but it is dripping black oil out of my exhaust silencer. I just put a new exhaust on my 21" commercial duty lawnboy. took upper & lower intake, fuel rail out, replaced fuel rail pressure sensor. has always seemed to have had this problem. We have a 1999 outboard Johnson - oil is leaking out of the exhaust - boat motor - why? We are new boat owners and know very little about it, just noticed oil leaking out of the exhaust of our 1999 outboard while it is in an idling state. Thanks alot guys and gals. It started out a love/hate thing. Easily find the parts you need using our free online parts catalogs. It is most definately oil being pumped out the exhaust. Outboard Jet Maintenance For those of you who run a outboard jet on your boat, there is some required maintenance to keep it functioning properly, and to assure that you can remove, adjust or replace needed parts if required. The specifications of outboards shown on this website may be changed or production discontinued without notice. What does the "outboard" in outboard motor mean?. Follow the Maintenance Schedule recommendations to ensure that the outboard is in peak operating condition. Two-stroke engines also require the oil to be pre-mixed in with the fuel. 9l engine it before it broke down engine light blinking then would not crank, had to tow it. At today's prices, If you can see a sheen on the water that's about $40 bucks. check the fuel line didn't come off at the tap or at the carb you said you rebuilt the carb, are all your gaskets and washers in order, did you tighten the screw at the fuel intake. Common Causes of Flooded Outboard Motors When an outboard boat motor "floods," it has too much fuel in the cylinder. Achieving the best idle at under 2 turns indicates the need for a smaller idle jet. Outboard engine cylinders also take a beating when it comes to ingesting water from their environment or cracking as a result of improper winterizing procedure. Across the range you'll find an array of features that help keep your boating experiences more enjoyable and trouble-free. We will give you a step by step approach on how to do it and a list of everything you'll need to. Frequently asked questions including how and where to purchase AMSOIL products and switching from petroleum motor oil to synthetic. Lots Of White Smoke Out of Exhaust Pipe. Since the days of Ole Evinrude, almost all outboard motors used a traditional two-stroke powerhead, which was lighter and less expensive to manufacture than a four. Two-stroke engines often have a high power-to-weight ratio, power being available in a narrow range of rotational speeds called the "power. After charging the battery I started it up and let it idle for a few minutes before trying to move. Shouldn’t it be going down? A. I haven't been running it once I realized this is what it was doing. Mercury 50hp 2-stroke outboard is overheating [ 2 Answers ] I have a 2000 Mercury 50horsepower 2-stroke outboard engine. In this case, the catalytic convertor's job is to help clean these up so you can get closer to the perfect ratio described above. One quick check you can do is to pull the fuel line off your carburetor, turn the gas on for a second and see if fuel is flowing out the fuel line. Exhaust; Outboard Engines Outboard, Powerhead, Conversion Parts For Sale No Results for "vans" New 2. As time goes by they take a severer shape and the cost of repair goes up outright. Thanks for checking things out with your Evinrude tech, I do appreciate 2 stroke motors, and I understand they're near impossible to find now. 5hp Heavy Duty Outboard Motor Boat Engine. thats not to say that it should be a lot , but most people that mix , do so with the feeling that a little more oil than necessary is good. As time has gone by the simplicity of these motors has diminished as the technology advanced. If you buy an aftermarket rebuilding kit, NEVER rely on the generic specification sheets which come in the kits. A few aluminum chips will not damage your engine, but a 1/2-in. (fyi - I ran it for a day w/o an exhaust). Reciprocating component, usually in the form of a cylinder closed at one. The amended complaint has added class representatives and causes of action to the class action lawsuit filed in California against Yamaha in regard to alleged defects in the Yamaha First Generation Four Stroke Outboard motor. filter on tank valve. Loopcharged engines will not have removable transfer port covers on the side of the cylinders. It is widely understood that modern 4-stroke outboards are quieter, produce less vibration and create significantly less pollution. If there is a hole or leak in the uptube, uptube seal, or impeller housing gasket, exhaust will get in and displace the cooling water. Can the FPR be the cause of fuel coming out of the tailpipe? Lots and Lots of fuel I don't mean a drop here and there, I mean where the back of the car (the drive way) has this streak of gas that is about 2 yards and a nice little puddle underneath the tailpipe. What does the "outboard" in outboard motor mean?. Gary on July 16, 2015 at 3:25 pm I use Sea Foam in all my gasoline products. that set a precedent and would become an industry standard - for both them and their competitors - for as long as 2-stroke outboards continued to be made. In this post, we're going to outline the symptoms of a gas related problems the causes and some preventative measures you can take to keep your 2 cycle trimmers, chainsaws and blowers safe in the middle of a "gas crisis". Your boat's speed and handling depend directly on the outboard engine used to power it. Let's skip whether it's out of gas because that's too easy. Each of these has a simple fix, and owners may be able to repair their own boats without seeking the advice or skills of a boat mechanic. If your having problems with your outboard engine your in luck Outboard Clinic works on all major lines such as Suzuki , Yamaha , Mercury , Polaris , Honda , Johnson , Evinrude , seadoo. The problem is our state has so much CRAP in our gas that the meter jumps, espically after adding 2 stroke oil. There should be water coming out of the exhaust port on the exhaust housing. Well here's what's happening. 1) Flush out the outboard cooling system if operating in salt or polluted water. The days of two strokes are getting behind us now (with a few exceptions) and the future is Four Stroke outboard motors. I know a lot of folks here are running Yamaha 25 2 strokes or have in the past. However, with the way it comes out of the hole and the mid range punch it has I’m leaving well enough alone. If you want to read similar articles to What does White Smoke from the Car Exhaust Mean?, we recommend you visit our Car Maintenance and Repair category. It started out a love/hate thing. 5 turns out to fix a hesitation i had and now no matter what adjustments I make on the carb richer or. 95 per download! If you have a dirty old paper copy of this manual or a PDF copy of this manual on your computer and it crashed we can help!. If you are a proud two-stroke outboard owner and ever wondered how to winterize your engine for the off season, here's your chance to learn how to do it. 96 evinrude 35hp White Milky out the Prop Exhaust. Re: Oil coming out of two-stroke exhaust Its normal and how a two stroke oils itself ,the oil mixes with the gas and when the cylinder fires the gas is burned off and not all the oil and the residual oil is blown out the exhaust along with carbon,ect and enclosed in a drum it is magnified. 0L Power Stroke Diesel - White smoke pouring out exhaust!! - Hey guys I need some help. (I don't know if it smokes at higher speeds. Some people have jet units to drive their boats, but they have cost, weight and maintenance problems that keep them out of the reach of most village people. Discussion in 'Outboards' started by lenwoodbluz, especially on a 2 stroke. It started not idling well, especially after it was warm. Why would a 2 stroke pour raw fuel out exhaust? It is due to not being burned. 007 (aluminum block), however, during the ENTIRE compression stroke, the intake valve is open a few hundreths and it's blowing the fuel out of the carb. -long piece of sharp stainless steel wire will tattoo the top of your piston and the combustion chamber before it finally gets out. A valve stem seal (like you said) is my only rational guess. Nissan 5hp Outboard - solved strange problem Article By Shorty Really Strange Outboard Problem A freind of mine was given this Nissan (Tohatsu) 5hp, 2 stroke, long shaft outboard motor. Your outboard has been labeled on the cowl with one of the following star labels. Take out the carburetor float and float needle when exposed with the bottom removed. 5 main stock needle and spring Flame arrestors Low screw 2 turns out High screw 0 turns out. 2- Drive is down and bow of boat is higher than the transom. Regular maintenance helps you to trace out such a problem at the soonest and saves you some valuable cash. It will eventually come out of the bottom of the engine by the water pump. 2 stroke white smoke, what does it mean? on the right side and now when I start it a bunch of white smoke is coming out. Understand though, that there are a few engines out there that squirt water out of the back, regardless if the thermostat is operating properly or not. i do not know if this is causing the problem or not, but it is dripping black oil out of my exhaust silencer. I am not a mechanic and thus not good at diagnosing my own problems. on a 2 stroke, see if black fuel is running out of your exhaust, maybe down your motor leg---sure sign of way too. The last time I used it, it had about 4 to 5 ounces of fuel in the tank. Two-Stroke, Four-Stroke and TLDI parts books available as free Adobe PDF catalogs. well, the oil in the fuel ends up as a mist in the crank case. thats not to say that it should be a lot , but most people that mix , do so with the feeling that a little more oil than necessary is good. First, you should know that there are two types of timing in an engine: cam timing and ignition timing. you can tell by the exhaust pipe coming from the motor. I assume I'm burning oil, but I'm not sure what part to troubleshoot first. 5 hp 2-stroke outboard. 5" height clearance for the engine. Emissions are what comes out of the exhaust system in the exhaust gas when the engine is running. This substantially reduces both oil consumption and the emission of unburned oil in the exhaust. idle is fine and smooth, the motor has a TON of power. I have enough marine mechanical experience to ascertain this is unburned oil draining down through the exhaust, and that my boats previous owner obviously was overmixing 2 cycle oil with the gas (my engine calls for a 50:1 ratio). Lots of blow-by that forces oil and lots of crankcase gasses past the PVC valve and into the intake manifold. The only problem - the motor is locked up. Here's some of the things I did to the scooter :. this doesn't make any sense to me has anyone else ever had this happen to them?. My lines all appear dry also. I also wouldn't mind avoiding the $1200 bill for a 9. OptiMax: Mercury Marine’s line of direct fuel injected (DFI) 2-Stroke outboards. Watch this quick video for a further description of how the 2-stroke. I tried to start my 92 500 ex on a cold morning and gas was coming out the front exhaust manifold and I let it sit. 3 years ago I bought a 2008 Bass Tracker 175 TXW with a 50 HP Merc 2-stroke on the back. We have a 1999 outboard Johnson - oil is leaking out of the exhaust - boat motor - why? We are new boat owners and know very little about it, just noticed oil leaking out of the exhaust of our 1999 outboard while it is in an idling state. I wouldn't think that gas is coming out of the exhaust itself but running off from somewhere, like mentioned above. 9 4 stroke yamaha 4 stroke dirt bikes yamaha 60hp 4 stroke yamaha 4 stroke oil yamaha yz 250 4 stroke yamaha 4 stroke 450 yamaha 40 hp 4 stroke yamaha 4 stroke motorcycles yamaha 4 stroke outboard yamaha 4 stroke props yamaha 4 stroke outboard problems yamaha 4 stroke motor yamaha banshee 4 stroke 150. if you think about it when you dyno a out board it is out the water hooked to a machine with no back. Not all of us can afford a new boat/outboard. at first when I tried to start it gas came out of the hose on the pass side of the carb. ) Gas mixed with too much premix - although we mix it 40:1 with Maxima 927 or whatever thats called. 5 and it took me a long time to figure out. If there is a hole or leak in the uptube, uptube seal, or impeller housing gasket, exhaust will get in and displace the cooling water. If #1 or #2 are within. Johnson 115 4 stroke - hole in the exhaust manifold I have a 19' center console with a 2003 115 hp 4 stroke Johnson (Suzuki) that pushes her well and hasn't given me any trouble until the last year. If it's a 4 stroke, check the dipstick for too much oil. fuel from under ground is cold and dense and will expand after warms up?. Water condensation. i will change out the fuel separator filter this weekend to see if ther is any water in it. Certainly the removal of 2-stroke outboards is a myth and a couple of manufacturers are still developing the 2-stroke principle. If this is compromised it will cause the outboard to run rough and unburnt oil/gas discharges out the exhaust. Its hard to show what i did here with just pictures. It weighs 377 pounds, and received a do-over in 2014 when Yamaha went to a new throttle body (60mm), a new exhaust design, and large diameter intake and exhaust valves. There is black gooy oil coming from the exhaust --it is 2 stroke and is lubricated by mixing oil with fuel. Traffic exhaust at residential address increases the risk of stroke - Outstanding news High levels of traffic exhaust at one's residence increases the risk of stroke even in low-pollution environments, according to a study by researchers at Karolinska Institutet and other universities in Sweden. For other non carburated 2-Strokes it can cause a high idle. (I don't know if it smokes at higher speeds. Generally it is due to exhaust restriction or wear on the piston/ring. How to identify a 2-Cycle engine and determine the best oil to gas ratio July 26, 2018 Learn how to determine if you have a 2-cycle engine and what the best engine oil mix is in this Briggs & Stratton FAQ!. Time for a oil change if it does. However, there are a few central locations of all engines that are prone to oil leaks - here's where to look. you can tell by the exhaust pipe coming from the motor. If it’s a 4 stroke, check the dipstick for too much oil. I have a second tank of gas, I'm thinking of mixing it extremely lean and using it to see if the smoking persists. Model number 1025301CD. Yes dont bag me i hated that cr80, took me 2 years to sell and it was unreliable. It turned out that having twice as many power strokes meant the time. " Pressure differentials can be seen in the exhaust of a jet engine. If the top seal is gone you will see a noticable amount of oil at the top of the block under the flywheel. I always run 89 octane gas and mix 2 bottles of Stihl 2 cycle oil with exacttly 2 gallons of gas measured out by the gas station pump. The H screw is set at 1 1/4 turns out. Our 212-cc 8-hp portable outboard features 7. I've removed the cylinder head and dug out all the salt encrustation from the water ways and this cleared the problem for a short while with a good water flow but very soon clogged up. There was a very strong gas odor coming from behind the boat, but none in the engine compartment. Exhaust; Outboard Engines Outboard, Powerhead, Conversion Parts For Sale No Results for "wigs" New 2. Gas leaking out of exhaust pipe I recently bought a used Suzuki Vinson 500 to use on my hunting lease in Alabama. 4 stroke four cycle engines are fairly new to the marine industry. It only happens when the boat sits unused for a week or two. The Honda four-stroke outboard engine range starts with a 2. Decarbing 2 Stroke vs 4 Stroke Motors. The gas only came out when he was *reving* up the engine Yes my car runs rough right now and I am only getting like 10 miles to the gallon (expensive). Your boat's speed and handling depend directly on the outboard engine used to power it. 9hp 4 stroke isn't firing; 2001 Yamaha 40hp stalling at idle but runs fine at high rpm; 2004 Yamaha 150hp sut down while running; 1991 9. Understand though, that there are a few engines out there that squirt water out of the back, regardless if the thermostat is operating properly or not. Outboard Jet Maintenance For those of you who run a outboard jet on your boat, there is some required maintenance to keep it functioning properly, and to assure that you can remove, adjust or replace needed parts if required. I would think that if you run it for an hour and it didn't overheat the pump is working. Most outboard legs fill completely with exhaust when operated above idle. Looks good inside and out but has begun to show its age in the engine performance department. > DFI > 2-strokes could be designed with lube oil systems used on 4-strokes > and scavenged by a blower on the air intake ports, like the DD's And then they would be bigger than a 4 stroke. 138 psi compression on both cylinders. 9hp 4 stroke. Where can I get 4 stroke engine oil for this thing? No local auto place does nor walmart but they all carry marine 2 stroke. After all, it is a device, which must be taken care of and replaced after aspecific time. 5-hp portable outboard is the smallest motor on our roster, yet, it has some of the biggest news. 2L 2-valve V8 gas with lots of low-rpm torque. Exhaust; Outboard Engines Outboard, Powerhead, Conversion Parts For Sale No Results for "vans" New 2. It has previously lived and unknown life, what was known is that it would start and idle, but not rev up to any speed. There are mainly only three different colors of smoke that you will see coming out of the engine. The Honda four-stroke outboard engine range starts with a 2. I took the boat for a run before and it runs mint. Exhaust smoke is the left over burned fuel and air mixture that comes from a combustion engine. The ease of getting extra power for little money out of the turbo 4 stroke is unreal. that set a precedent and would become an industry standard - for both them and their competitors - for as long as 2-stroke outboards continued to be made. Gas coming out of exhaust (help please) One of the things I've noticed with my new boat is that at start up there seems to be a little bit of gas or oil exiting. Thanks alot guys and gals. Why does my 4-stroke outboard oil level keep rising? I never add any. You may possibly need to soak (in a bath cleaner) and recondition the carb with an OEM rebuild kit depending on the condition of it once you have disected it. meters and rpm is R, you get L * R cu. Our 72-cc 2. It smells like gas. How to identify a 2-Cycle engine and determine the best oil to gas ratio July 26, 2018 Learn how to determine if you have a 2-cycle engine and what the best engine oil mix is in this Briggs & Stratton FAQ!. This motor was stronger out of the hole at 300 Hp than either the 350. I've got a bad, bad feeling about this. I have enough marine mechanical experience to ascertain this is unburned oil draining down through the exhaust, and that my boats previous owner obviously was overmixing 2 cycle oil with the gas (my engine calls for a 50:1 ratio). raw gas out the tail pipe would really have to be a lot of gas pouring into engine and out exhaust valves,would probably fill crankcase first by seeping past rings before coming out exhaust. Actually in California some of us are using it simply to pass the meter. It was the 3-cylinder, 814cc 55hp, the first-ever OMC motor to feature a through-prop exhaust and the first motor to adopt the slimline, straight-edged external profile that it (and. Because the intake and exhaust valves are closed, the combustion of the fuel takes place in a totally enclosed (and nearly constant volume) vessel. 6-litre narrow bank V6. This what I was thinking, only because my outboard does the same thing, more so when I don't run it dry. 9 Simple Steps to Properly Mix 2-Stroke Fuel for a Husqvarna Chainsaw; Miler on July 2, 2015 at 5:31 am Im no expert but i believe those engines require a gas/oil mixture for lubrication, and burning pure ethanol might cause them to overheat. A two-stroke engine with gas leaking from the engine is a serious problem. I wouldn't think that gas is coming out of the exhaust itself but running off from somewhere, like mentioned above. Left it in the garage (not heated) with carb off and plugs out hoping the gas will evaporate. It used invariably to start on the second pull. This made me think that the float is stuck but after I checked it, it worked great. Remember – Transient Spark Technology = Hole shot and haul ass acceleration, maximizing the 4 strokes capabilities. On a 4-Stroke (usually Honda) the smoke typically blows out of the crankcase vent rather than the exhaust pipe. Thanks Its the two brass looking tips. It has 165,000 miles on it. The problem is. After all, it is a device, which must be taken care of and replaced after aspecific time. So, I got a gas powered 2-stroke Craftsman leaf blower for free from a co-worker. The two stroke outboard motor series developed mainly for commercial use such as on fishing and passenger vessels but has become outboard of choice for majority of cruisers b/o reliability, weight, availability of parts & repair most anywhere. It started out a love/hate thing. How much White smoke coming out the exhaust for a 2 Stroke is normal? The Backback blower I have seems to be blowing alot of white smoke out and i can't seem to adjust the carb right to lessen it. If the oil is clean or milky amber color then you have a seal problem that needs attention before you run it again. Optimax two-stroke outboards: Remove the prop, attach flush muffs so that the rubber cups fit tightly over the water intakes, then adjust water flow so that some water leaks out around the cups. I think with the excess fuel from running it at home was just that, the richness level being set to emergency level, or that is what I hope. We sell all types of outboard motors ranging from new to old, 1hp-300hp, and 2 or 4 stroke. 90 Hp Mercury Outboard Motor 2 Stroke. If I see the fuel/oil slick, well then now I know where it's coming from and can proceed from there. Look at the back of a 2 stroke motorcycle. Our 212-cc 8-hp portable outboard features 7. Turbo Problems from Exhaust Back Pressure on 7. Then out the thermostat, (which should open at about 145 to 160 degrees F. The amended complaint has added class representatives and causes of action to the class action lawsuit filed in California against Yamaha in regard to alleged defects in the Yamaha First Generation Four Stroke Outboard motor. In addition, future technology may soon allow for four stroke engines to replace the current two stroke engines in use. exhaust on yamaha 2 stroke 15hp My new (to me) 15hp yammy outboard 2 stroke is pretty smokey am i wrong in thinking that exhaust should be coming out under the water? as it seems to be coming out at the back of the engine near the water/cooling exit hard to see as it is in a well and not able to remove (prop to big). 5 main stock needle and spring Flame arrestors Low screw 2 turns out High screw 0 turns out. end, it operates under fluid pressure within a smooth walled cylinder. The pressure in the cylinder drives most of the exhaust gases out of cylinder, as shown here:. At today's prices, If you can see a sheen on the water that's about $40 bucks. It has 165,000 miles on it. When I check the valve clearance at 1/4" past TDC I have the correct clearance. There is black gooy oil coming from the exhaust --it is 2 stroke and is lubricated by mixing oil with fuel. This outboard oil does a great job in boosting engine performance, keeping carbon out of critical areas, reducing smoke, and prolonging engine life. I started it up at home and there is black soot coming out the exhaust by prop. In Asia I would trust HiModel pretty well, i have bought stuff from them before and they worked out really well. It just does not get blown out of the exhaust outlet because of low pressure connected to low rpm. I fixed it but now I have gas coming out of the exhaust pipe when I try to start it. The gas only came out when he was *reving* up the engine Yes my car runs rough right now and I am only getting like 10 miles to the gallon (expensive). I also agree, that if the water tube cracked that injecting cold water into the exhaust hsg shouldn't create steam. It'll smoke the most on start up and when you first start out. However, until recently, due to expense and weight, 4-stroke outboards were not widely accepted. It was not this white before I took it in. The most common entry point is the junction of the header pipes and mufflers. Ive got a 2 stroke racing motorbike, but recently ive noticed some black goo dripping from my exhaust. 2) Wash off all salt deposits and flush out the exhaust outlet of the propeller and gear case with fresh water if operating in salt water. 9 4 stroke yamaha 4 stroke dirt bikes yamaha 60hp 4 stroke yamaha 4 stroke oil yamaha yz 250 4 stroke yamaha 4 stroke 450 yamaha 40 hp 4 stroke yamaha 4 stroke motorcycles yamaha 4 stroke outboard yamaha 4 stroke props yamaha 4 stroke outboard problems yamaha 4 stroke motor yamaha banshee 4 stroke 150.