Gas Coming Out Of Exhaust 2 Stroke Outboard

3-liter four-stroke V6 engines. Typically, this will be about 10% of the dry weight, assuming that you are not making any major additions like a tender, davit or other particularly heavy additions. 6: INTAKE AND EXHAUST SYSTEMS : A. Knowing what to ask when buying an engine from Yamaha, Mercury, Honda, or another manufacturer is critical. I could see gas coming up between the swim platform and the hull in the "wash" of the exhaust. Invented in the early years of the 20th century, outboards brought the same freedom to small boats that gasoline engines brought to cars. Check your owner's manual for your particular outboard's schedule, and keep note of when to check on them by watching your hour meter, or by using the Yamaha Outboards app on your smartphone. He said it was working when put away decades ago. " Pressure differentials can be seen in the exhaust of a jet engine. Fishing motors prior to 1955 commonly used a 16:1 ratio. ) up thru the water cover plate on the rear of the head, back out thru a passage in the head and out into the exhaust housing to be either sucked out thru the prop hub or thru the holes in the sides of the lower unit if the boat is not moving. Believe it or not but at low rpm the exhaust housing will partly fill up with water and the unburnt exhaust oil and gunk floats on top. What confuses me is why so few 2-stroke diesels are available. Oil making its way into the spark plug wells will drastically affect the engines performance, leading to misfires, increased oil consumption and blue exhaust. 5 ecoboost v6. Here is latest boat outboard engine restoration video. Rated 5 out of 5 by Adam from Great Product, great store Purchased this at the end of last season. Before that, lets figure out. 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. After all, it is a device, which must be taken care of and replaced after aspecific time. The Deutz study on a Euro I engine, Figure 2, showed a BSFC penalty of about 1. A two-stroke engine with gas leaking from the engine is a serious problem. Let's skip whether it's out of gas because that's too easy. Better Fuel Economy - burns up to 30-40 percent less gas and oil than conventional carbureted two-stroke engines, saving money and resources. Over the years, we've come up with a short list of two-stroke bike-starting strategies. We have a high pressure pulse coming out our exhaust system but it's just not visible as in the photo above. it could just be running out of your carborator and down the inside and seeming like its from the exhaust. DOWNLOAD 90HP Repair Manual Johnson Evinrude Mercury Suzuki Yamaha Honda Mariner This INSTANT REPAIR MANUAL DOWNLOAD for the Mercury-Mariner, Johnson-Evinrude, Suzuki, Honda, Yamaha 90HP outboard engines were designed primarily for factory service 90HP outboard technicians in a properly equipped shop. The only problem - the motor is locked up. Tips Do not overlook the problem if white smoke is coming out of your exhaust as it could be a serious issue for both your car and other drivers on the road. 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. 2- Drive is down and bow of boat is higher than the transom. And the single-sequential turbocharger. Twin engine: Position the outboard engines approximately 580 mm (22. I need to know how to get the gas out of the crankcase and to. A 2-stroke engine is simpler (no camshaft, valves or valve gear), so by extension that should make it easier to work out issues with poor performance. As time has gone by the simplicity of these motors has diminished as the technology advanced. 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. 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. I thought it was carbon and possibly unburned bad gasuntil he brought it to my house. winterizing outboard motor with Boat in the Water, then on the trailer for winter storage. Have good spark the bottom has no spark at all. Now from what I think I was told (have a shocker memory) and my missus says definitely yes that it is what was said (and I just want to be sure hence why I'm here) is that I don't have to actually mix the oil and fuel myself into the tanks. Valve guides control the gas flows into and out of the engine. 005 place crankcase on a milling machine with the carb hole facing up, clamp and fly cut carb hole with studs removed to minimum clean up. Without the right lubrication, two-stroke snowmobile engines and outboard motors run hotter, accumulate deposits and suffer a reduction in performance. I caught the bike on a good day and rode it about 40 Min's it rode OK until it started to get sluggish and idle was low so I went home. Note that we said "vacuum signal. Stick with a good. Thanks Its the two brass looking tips. It just does not get blown out of the exhaust outlet because of low pressure connected to low rpm. 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. If no start > go to step #9 #9. I Would like some responses to why there is a gas smell from the exhaust wizard 2009-03-08 19:00:39 UTC #2 Because the that is where the burnt gas comes out. 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). NOTICE Storing the outboard in a tilted position can damage the outboard. i have seen after a fill up gas coming from my tank vents after a short ride. The H screw is set at 1 1/4 turns out. It comes from the unburnt oil in the gas coating the exhaust and when it sits it will drain out the exhaust in the prop. " Pressure differentials can be seen in the exhaust of a jet engine. 1) too much 2 stroke oil mixed with the gas use synthetic or synthetic blend Racing 2 stroke motorcycle oil (not just outboard motor or 2 stroke oil). Unfortunately Hobby King has started selling the NGH 38cc 4 stroke gas engine now. 3 out of 5 by 328. Check your owner's manual for your particular outboard's schedule, and keep note of when to check on them by watching your hour meter, or by using the Yamaha Outboards app on your smartphone. Then I realized that I didn't run the gas out of the motor last season. Black carbon is the sooty black material emitted from gas and diesel engines, coal-fired power plants and other fuels. it could just be running out of your carborator and down the inside and seeming like its from the exhaust. Problems with Nissan (Tohatsu) 2. You will detect bluish smoke coming out of the tailpipe if this problem occurs. Re: Amsoil Saber Outboard 2 Stroke Oil Questions - 06/06/09 02:54 PM I have used the Amsoil Saber Synthetic at 100:1 in my 1988 Johnson 9. Could possibly also be just 2 stroke oil residue out of the exhaust and nothing to worry about at all. We'll talk about the reason's a Four Stroke smokes, here, in a little bit. This SOHC two-cylinder four stroke delivers a nice balance of power, performance and portability for jon boats and inflatables. re: OB Mechanics- Fuel dripping from exhaust on outboard motorPosted by fishfighter on 7/16/12 at 12:33 pm to HeadBusta4LSU. I also agree, that if the water tube cracked that injecting cold water into the exhaust hsg shouldn't create steam. The new 4 stroke engines are true rated hp. however, the motor has a white smoke coming out the exhaust. Took it out yesterday and walked out to the garage this morning only to find it leaking what looked to be used motor oil from the water intake. 2000 Johnson 50hp 2 stroke questions. 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). It will only start with the throttle in low, not choke. Shouldn't it be going down? A. This only occurs after the motor has been laid up for a period of time (a month or two). it could just be running out of your carborator and down the inside and seeming like its from the exhaust. Honda portable outboards are compact, lightweight, and are ideal for sailboats, aluminum fishing boats, canoes, inflatables. " Pressure differentials can be seen in the exhaust of a jet 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. 4 cc Gas 2-Stroke Cycle Backpack Leaf Blower with Hip Throttle is rated 4. The combustion increases the temperature of the exhaust gases, any residual air in the combustion chamber, and the combustion chamber itself. if gas is making it to you muffler that mean it getting way to much gas, but you would a ssume it would flood out. 3L Power Stroke Diesel Engines. Comparing all the engine options, we chose the torquey 3. e not enough oil in the gas mix. To understand exhaust gas emissions, remember that both air and fuel are made of several elements. Hi everyone. Certainly the removal of 2-stroke outboards is a myth and a couple of manufacturers are still developing the 2-stroke principle. On a 4-Stroke (usually Honda) the smoke typically blows out of the crankcase vent rather than the 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 outboard motors with DFI (direct fuel injection) were developed in response to an EPA mandate requiring a 75 percent reduction in exhaust emissions between 1998 and 2006. I drained all gas out and added fresh gas w/ mercury fuel system cleaner. Most outboard legs fill completely with exhaust when operated above idle. If your scooter has a 2 stroke engine and has oil injection, some smoke is normal. So, I got a gas powered 2-stroke Craftsman leaf blower for free from a co-worker. Mercury Marine, based in Wisconsin, has been making Mercury outboard motors in two- and four-stroke versions ranging from 2. For other non carburated 2-Strokes it can cause a high idle. problem im having is when the boat sits and idles for even a. When I check the valve clearance at 1/4" past TDC I have the correct clearance. Marine Small Outboards Specializing in used 4 stroke outboards and 2 stroke outboard boat motors. Outboard exhaust has been the bane of Ariel/Commander sailors since year one. Tohatsu offers an outstanding line up of four stroke outboard motors, including the 100 hp, 90 hp, 75 hp, 60 hp (standard and "sport thrust" ), 50 hp, 40 hp, 30 hp and 25 hp outboard motors. My lines all appear dry also. 3hp single-cylinder 57cc four-stroke portable outboard and tops out with the BF250, a 3. Motor sat last year with gas in it. 2 shows a drastic improvement in the relative exhaust stroke pulses after such a service was performed. Completely redesigned, it's even more portable, easier to store and cleaner burning. 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. If this is compromised it will cause the outboard to run rough and unburnt oil/gas discharges out the exhaust. I Would like some responses to why there is a gas smell from the exhaust wizard 2009-03-08 19:00:39 UTC #2 Because the that is where the burnt gas comes out. The 60 and 40hp SeaPro FourStroke engines come standard with the Command Thrust gearcase. Since you are a newbie to outboards, there is a small outlet on the underside of the motor that we affectionatly call the 'pee hole' it is a telltale stream that tells you the motors impeller is working properly and getting. Air coming out of oil-filler while engine running I am not sure I noticed this before, but while I was doing my latest oil-change last weekend, I had the oil-filler cap off, and the engine running, and I noticed a lot of airflow coming out of the opening. Yes dont bag me i hated that cr80, took me 2 years to sell and it was unreliable. The 2-stroke has 2 cycles burn and exhaust if no burn fuel-oil mix exhausts out of the tailpipe. Should you Buy a Two Stroke OR Four Stroke Outboard Engine? Outboard engines have been around since 1896 and have done a good job of getting smaller craft from point A to point B with simple efficiency. Call for Price [] ×. oil in the exhaust. Twice as many power strokes promised big improvements over 4-stroke gas engine designs, but the actual gains were very modest. 5hp 2 stroke which is used in saltwater. Valve and port diesel two stroke engines. Two-stroke engines often have a high power-to-weight ratio, power being available in a narrow range of rotational speeds called the "power. Marine Small Outboards Specializing in used 4 stroke outboards and 2 stroke outboard boat motors. well, the oil in the fuel ends up as a mist in the crank case. I was thinking, perhaps this fuel/oil leak is not coming from the upper casing exhaust, rather from the prop exhaust, or leaking from prop seal. These carbon-based deposits are conductive, much like oil fouling, and will allow the voltage coming out of the center electrode of the spark plug to track down the core nose rather than jumping the gap. fuel from under ground is cold and dense and will expand after warms up?. 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. Additionally, even though the 7. ( guessing its a overflow tube) Its doing this both running and not running and it runs good. The disparity in exhaust stroke pressures between cylinders on an otherwise apparently good-running engine indicates that a fuel injection and decarbonization service may be needed on this vehicle. I ran about 5 tanks of fuel through it one weekend and it ran fine. Yes It was actually gas coming out of the tailpipe. 3hp single-cylinder 57cc four-stroke portable outboard and tops out with the BF250, a 3. 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. 15 HP evenrude 79, motor now starts and idle. while you are riding, there is actually a fine mist of oil that is being shot out of the exhaust. The ease of getting extra power for little money out of the turbo 4 stroke is unreal. 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. If it continues in large amounts, you may have a piston ring or two that has stuck in a piston. Fishing motors prior to 1955 commonly used a 16:1 ratio. yamaha's standard upper casing exhaust kit for 2004 and newer f200, f225, and f250 models mar-exhkt-04-00. Just my 2 cents worth, but I have had boats now for 35 years without any fuel related problems. When combustion occurs in a two stroke, the piston is pushed down by the expanding gases uncovering the exhaust port. Intake valve was. So I prepared this to present to customers with the problem and I thought it would make a good FAQ. To get a estimate or learn how to fix your engine feel free to drop us a email and or phone call. Serial number labels will reference the date of manufacture for the engine by providing visibility of the month and year the engine was produced. If you find oil in the exhaust manifolds, most likely the valve covers are the cause of the leak. Possible Flooded engine: Go to step #2. I understand the petrol oil mix is gonna make a lot of smoke, but blank gunk?. Ive not seen that happen before and was wondering why that would happen here are my theories 1. It looks like it to me in the picture but I could be wrong without seeing it in person. 5 ecoboost v6. bought it new. Pay no sales tax (except CA) on this 4-stroke gas bike motor kit! Bicycle Requirements: This bicycle motor engine kit fits most mens 24" and larger bicycles which includes mountain, cruiser, chopper and road bikes with a V-frame with at least a 8. Mercury FourStroke Outboards. Refer to question #5 for information on oil. Failure of the Water PumpOne of the most common reasons behind overheating in outboard motors isfailure of the water pumps. 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". i will change out the fuel separator filter this weekend to see if ther is any water in it. Only a little bit mind you, but was wondering why. i do not know if this is causing the problem or not, but it is dripping black oil out of my exhaust silencer. I think a basic description of timing might help sort out a lot of this. There is black gooy oil coming from the exhaust --it is 2 stroke and is lubricated by mixing oil with fuel. Any ideas of what this could be?? Since you just posted this, I'm guessing you ran it with the muffs on with the engine having no boat weight load on it. Does the combination of the “Six Cycle Hybrid Steam Engine” and my hybrid steam engine have merit? Bear in mind that this engine should be able to be made from a modified standard V-8 engine. Actually in California some of us are using it simply to pass the meter. The study suggests that it is mainly black carbon from traffic exhaust that increases the risk for stroke and not particulate matter from other sources. yamaha's standard upper casing exhaust kit for 2004 and newer f200, f225, and f250 models mar-exhkt-04-00. If this is compromised it will cause the outboard to run rough and unburnt oil/gas discharges out the exhaust. 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. We’ll talk about the reason’s a Four Stroke smokes, here, in a little bit. 1) too much 2 stroke oil mixed with the gas use synthetic or synthetic blend Racing 2 stroke motorcycle oil (not just outboard motor or 2 stroke oil). Look at the back of a 2 stroke motorcycle. 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. This motor was stronger out of the hole at 300 Hp than either the 350. The amount of oil coming through makes me think the seal is completely gone. without fuel and motor oil. Running your outboard without oil can destroy your engine within 15 seconds (a very costly error). Ethanol comes from corn. 5 and it took me a long time to figure out. They're also lighter, easier to work on, and downright angrier, pumping out a lot more power per cubic centimeter of displacement. However i have a 650 Kawasaki motor that i just replaced the crank seals and it runs really good. while you are riding, there is actually a fine mist of oil that is being shot out of the exhaust. Product names, coloring and graphics may also differ. The rear wheel is covered in oil. Single engine: Position the outboard motor at the center of the transom. If it continues in large amounts, you may have a piston ring or two that has stuck in a piston. Thanks alot guys and gals. It smells like gas. Better Fuel Economy - burns up to 30-40 percent less gas and oil than conventional carbureted two-stroke engines, saving money and resources. One of the joys of carbed motors the rely on their fuel for lubrication. The combustion increases the temperature of the exhaust gases, any residual air in the combustion chamber, and the combustion chamber itself. 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. Can someone help troubleshoot this problem of white smoke coming out of the exhaust? I've finally put the scooter together after working on it for about 2 1/2 weeks and when I started it up, I noticed some white smoke coming out of the exhaust. I assume I'm burning oil, but I'm not sure what part to troubleshoot first. Mercury 2-Stroke Outboard Boat Motor Service Manuals for only $4. The combination of the 2. I think a basic description of timing might help sort out a lot of this. In the USA you can buy from Agape Racing and Hobby. If you buy an aftermarket rebuilding kit, NEVER rely on the generic specification sheets which come in the kits. The 4hp featuring digital DCI ignition. In the case, the engine oil leaks and runs into the exhaust gases. I have experienced this since I have two kinds of motorcycles, one is a 2T (15 years old) the other is a 4T (8 years old) and the 4T eats more gas than my 2T motorcycle. Fuel leak through the exhaust? 1966 Johnson 2-stroke. Two-strokes are far simpler machines than four-stroke engines. 6 Drain gas from float bowl. Yamaha Genuine Accessories are the number 1 choice for ensuring your land or marine product will run smoothly and perform at a maximum level. Hi everyone. The barrel of the Bravo OC is cut down even further than a Bravo XS. Motor flusher attachment—"ear muffs" Optional: Engine Winterizing Kit with 2-5 gallons of antifreeze, depending on the size of your outboard. At such position of the mechanism of the gas distribution exhaust gases from the cylinder 4 through the valve 1 and ports 2 flow out in the exhaust manifold 6. Time for a oil change if it does. If it's a 4 stroke, check the dipstick for too much oil. Shop securely. It's not advisable to try to crank the motor if the cylinders have liquid in them. 2- Drive is down and bow of boat is higher than the transom. Yes It was actually gas coming out of the tailpipe. Evinrude outboard engines have a serial number label that is located on the transom bracket. Ive not seen that happen before and was wondering why that would happen here are my theories 1. I have a 1998 2 stroke Evinrude 90 hp and if it is run slowly doing a lot of trolling for example, even though it is oil injected all the oil isn't burnt completely and will come out throught the prop opening because that is where the motors exhaust is. In order to fix white smoke from exhaust problem, besides from taking it to the repair shop, you can do it at home:. I have a 1999 100HP Yamaha 4 stroke outboard. Those of us who have grown up in the Japanese two-stroke. Mercury FourStroke Outboards. There's a number of baffles in the exhaust hsg, but I don't think there's any extra water injection. 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. Re: Outboard leaking petrol via exhaust? My 6hp Evinrude (2 stroke) uses about 1/2 gallon an hour pushing a 19 footer at less than 5kn. 5hp with a built in fuel tank, the 3. " Pressure differentials can be seen in the exhaust of a jet engine. The spark plugs fire once every single revolution, and power is produced once every 2-strokes of the piston. extra oil eventually makes it's way out of the exhaust and into the muffler where it will build up and start to drip after awhile. 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. Even a small air leak can dramatically increase the intensity or likelihood of exhaust system backfiring. Gas will drip out when the motor is trimed up. 3-liter four-stroke V6 engines. when I tried to start it again there it was gas coming out manifold. Generally it is due to exhaust restriction or wear on the piston/ring. It's not advisable to try to crank the motor if the cylinders have liquid in them. The older a 4 stroke motorcycle the more it consumes a lot of gas than a 2 stroke. A carb float could be sticking open when you are not running the motor. I have a BG55 leaf blower that leaks gas out of the exhaust muffler while the thing just sits. Synthetic oil and filter recommendations as well as motorcyle (including Harley Davidson) lubricant recommendations. Reply to this Comment. A 2 stroke engine requires no oil sump. It was not this white before I took it in. The ease of getting extra power for little money out of the turbo 4 stroke is unreal. This SOHC two-cylinder four stroke delivers a nice balance of power, performance and portability for jon boats and inflatables. MODEL BM MERCURY SERIES 20 HP ASSEMBLY INSTRUCTIONS 2 CYLINDER, 4 STROKE 22. 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. Any ideas Outboard Spares Response Hi, If the bottom cylinder is not firing then it could be a couple of things. In 2-Strokes this is an easy diagnosis because the oil used on the clutch side is not the yummy smelling premix oil thus you'll smell good 'ole engine oil. 90 Hp Mercury Outboard Motor 2 Stroke. Clean Used 2004 Mercury 25 HP 2 Cylinder 2 Stroke 15" Tiller Outboard Motor. We will give you a step by step approach on how to do it and a list of everything you'll need to. Note that as the piston moves downward, it is compressing the air/fuel mixture in the crankcase. On a 4-Stroke (usually Honda) the smoke typically blows out of the crankcase vent rather than the exhaust pipe. GENUINE ACCESSORIES DEVELOPED SPECIFICALLY FOR YAMAHA PRODUCTS. 2 stroke marine oil goes in the outboard where the big cap I see says oil. It's pretty normal for an older 2-stroke to "fog" a bit out the carb. Gas leaking out of exhaust pipe I recently bought a used Suzuki Vinson 500 to use on my hunting lease in Alabama. The fuel vapor passes up through the gray pipe and meets air coming down the same pipe, which enters from the atmosphere through perforations at the top. Second reason is the age of the impeller. Two Stroke Performance Tuning a disc partially cut away and attached to the end of the crankshaft opens and closes an inlet port in the side of the crankcase. Shouldn't it be going down? A. When faced with a smoke issue, don't continue riding. 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. Select Evinrude Outboard Test Model Stroke Displacement Fuel consumption WOT Boat owner?. Ran water straight into water tube. Power Stroke. Model number 1025301CD. In the meantime, manufacturers have been working to shrink and lighten four-stroke engines, and you can see that research coming to market in a variety of new marine and lawn-care products. The first edition of the Association's manual had the following: "Outboard motors operating in the confines of the lazarette will frequently choke on their own exhaust gases. The heck are these and why is this doing? Kinda werid to me exspecially gas coming out. I wanna say gas was shooting out of these two ports. Ive not seen that happen before and was wondering why that would happen here are my theories 1. Over the years, we've come up with a short list of two-stroke bike-starting strategies. 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. If your donut gets some gas in it, it will not float well causing excess fuel to run into your motor and out the exhaust, intake and other places as well. 138 psi compression on both cylinders. 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). The combination of the 2. I would think that if you run it for an hour and it didn't overheat the pump is working. Pop Quiz: The owner of a 30' powerboat hops aboard his boat one day to go for a cruise, but his inboard V-8 engine is slow to start. It can also cause the water to come out of the exhaust, creating an idle issue. Fogging oil in a spray can. This made me think that the float is stuck but after I checked it, it worked great. extra oil eventually makes it's way out of the exhaust and into the muffler where it will build up and start to drip after awhile. Pennzoil Marine Premium Plus 2-cycle Synthetic Blend Oil is recommended for pre-mix and injector systems including today's modern direct-injection engines. I understand the petrol oil mix is gonna make a lot of smoke, but blank gunk?. 3 years ago I bought a 2008 Bass Tracker 175 TXW with a 50 HP Merc 2-stroke on the back. There has been a lot of mail concerning how to set timing with an unknown engine. I am absolutely sure the Yamaha 250 SHO has more in it with a little playing with the prop. Today there is a range of Mercury Outboard sizes ranging from 2. 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. This can make it either difficult or impossible to start, depending on the severity of the situation. Exhaust through the ports 2 continues at the beginning of the exhaust stroke. Then I realized that I didn't run the gas out of the motor last season. Ok so heres the deal I first notice the oil coming from the weep hole on the lower unit about two summers ago so I removed the lower unit to 1. There has been a lot of mail concerning how to set timing with an unknown engine. 33:1 gear ratio and the 10" x 6 1/2" Power Thrust 4-blade propeller creates 60% more thrust in reverse and 15% more in forward. The problem is our state has so much CRAP in our gas that the meter jumps, espically after adding 2 stroke oil. The study, published in the journal Environmental Health Perspectives, suggests that it is mainly black carbon from traffic exhaust that increases the risk for stroke, and not particulate matter from other sources. 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. It just does not get blown out of the exhaust outlet because of low pressure connected to low rpm. It will eventually come out of the bottom of the engine by the water pump. by Terry Parkhurst (expanded by allpar) Chrysler’s line of marine engines, initiated in 1927, blossomed into a full line of inboard and outboard boat engines, along with powerboats and sailing craft, in the 1960s. With precise microprocessor control and direct injection of the fuel into the combustion chamber after the ports close, the two-cycle DFI can better the most stringent exhaust emission requirements now proposed out to 2007. Mercury 2-Stroke Outboard Boat Motor Service Manuals for only $4. The frustration comes when you can't get your oil burner to run right even after confirming adequate compression, proper carburetion and correct ignition timing. We'll talk about the reason's a Four Stroke smokes, here, in a little bit. 138 psi compression on both cylinders. Black too much fuel, Blue burning oil, White caused by moisture. i do not know if this is causing the problem or not, but it is dripping black oil out of my exhaust silencer. 2 Stroke Engine Troubleshooting - Spark But No Fuel As you read above this is assuming you have checked the basics, you know, gas is on, gas in the tank, choke is on. 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. Twice as many power strokes promised big improvements over 4-stroke gas engine designs, but the actual gains were very modest. 1) Flush out the outboard cooling system if operating in salt or polluted water. (2) Gooseneck Towing Up to 35,000 lbs. one ought t. sounds kind of weired because on a four stroke if you get oil in the combustion chamber there should be blue smoke too especially if there is enough to blow out the pipe. 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 2 stroke engine is easier to construct since it has no valves. Tired of the $40 per gallon oil, the smell in my clothes at the end of the day and just the overal smoke in general. Thanks alot guys and gals. Lubrication of two-stroke engines is effected by mixing two-stroke oil with gas before use. It becomes most apparent when the engine is off and tilted forward. 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. Here is a listing of common color codes for Yamaha outboard motors. What could cause unburnt fuel to come out the exhaust?. I ran about 5 tanks of fuel through it one weekend and it ran fine. 8% per 10 kPa back pressure increase when back pressure exceeded the back pressure limit for this engine [224]. A number of months ago it began to sputter and require some playing of the choke to keep it running. OUTBOARD WORKSHOP SERVICE MANUAL ALL MOTORS 2 TO 225 HP YEARS 1988 TO 2003 to maintaining and repairing your Suzuki 2-stroke outboard. For this reason, outboard engines wear out faster, absorb more heat over a longer period and work under a constant load. It turned out that having twice as many power strokes meant the time. It's possible to bend/break stuff inside if there is even a teeeeeensy bit more liquid in the cylinder than the volume of the combustion chamber at TDC. 5hp to 300hp) deliver legendary performance and forward-thinking technology. Replace the float needle with a new one. I haven't been running it once I realized this is what it was doing. This unit sounds like it was starving for fuel (as Jay pointed out. If your scooter has a 2 stroke engine and has oil injection, some smoke is normal. Yes, it's a 2 stroke. 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. There are mainly only three different colors of smoke that you will see coming out of the engine.