Customer Question. New to the site and a first time outboard owner. I'm not sure what you aren't understanding about that. You can see different variations of the colors, but the main colors are Blue, White, and Black. There are mainly only three different colors of smoke that you will see coming out of the engine. Gas Consumption: There are many advantages of running a Honda 4-stroke outboard, and gas consumption is one of them. As I eluded to above, though, you need to further explain what is going on and whether it is excessive/out of the norm. 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.i have seen after a fill up gas coming from my tank vents after a short ride.fuel from under ground is cold and dense and will expand after warms up? Except the 2 stroke burn cycle is interrupted by the exhaust cycle, while the 4 stroke completes the burn cycle before the exhaust cycle. some of that oil will simple not burn but will get pushed into your exhaust system. The world of outboard motors has changed quickly, and suddenly there are three different kinds of engines on the waterfront: four-strokes, fuel-injected two-stokes, and carbureted two-strokes. I am having problems with my 2002 cr80. I started the motor for the first time today and ran it while I made adjustments to the idle and shifting rods. The 2-stroke has 2 cycles burn and exhaust if no burn fuel-oil mix exhausts out of the tailpipe. As conventional two-strokes began to raise emissions red flags at the EPA in the 1990s, companies such as Honda and Yamaha rolled out 100-plus-horsepower four-strokes (1998). yz250 2 stroke oild comming out of exhaust? By fryejs, November 14, 2011 in Yamaha 2 Stroke. i know theyre not ment to idle but i cant seem to idle it down. Jeff G., Marine Mechanic. 2.3 Vessels Producing the Discharge There are approximately 3,300 Navy, 1,560 U.S. Coast Guard (USCG), 209 Army, and 1,454 Marine Corps small boats currently using seawater for cooling engine exhaust. Some of the oil condenses in the crankcase and drains out. If bad they could let oil pool up until it has to go somewhere. Hi, three things can cause excessive oil to run down inside the exhaust housing and out the prop if that is what you are seeing. (This was after 15 or so kicks) So I pulled the carb cover, and could see nothing wrong. Hi everyone, I have a 1987 2 stroke mercury outboard serial # OB111664. mix according to the type of riding you will be doing. Based on what you have written, you seem reluctant to believe that exhaust gases coming out are normal. By comparision in a two stroke outboard motor, the end of the 'Combustion' stroke and and beginning of the Compression stroke happen simultaneously as does the 'Intake' & 'Exhaust' strokes. If it looks dry, well, don't panic yet. Went out this morning to start the scoot, and nothing. Outboard engines generally discharge their wet exhaust underwater through the propeller hub. Submitted: 10 years ago. Ask Your Own Boat Question. My Mercury 5hp 2-stroke makes more noise than a Seagull and exhaust gas hangs about the power head at low revs (it runs in a well). Have a specialty? The question is 1. I've never heard of any, which must mean that at least it was rare. This is a NORMAL polution source from 2-strokes and is a part of why they are no longer available in the US. mix 40:1 if you are MX race practice or MX racing (alot of high rpm or held in the upper range rpm for extended periods) Few things are more frustrating than getting everything ready for a much-anticipated stint of fishing or boating, only to discover that your outboard motor won’t start. It ran great but smoked a little. so the next time you start it you get extra oil to burn on start up. Apply to be an Expert. Even if you have the moyor trimed down. Gas/bubbles comes out of EVERY engine. I found 3 out of the 4 on my … Gas prices are up and fuel efficiency is probably a big factor when going fishing, especially if you fish all the time. Thanks in advance. Marine Mechanic: Jeff G., Marine Mechanic replied 10 years ago. And what that is, is exhaust gases coming past this cylinder wall through a blown head gasket and displacing all that water. For this reason, outboard engines wear out faster, absorb more heat over a longer period and work under a constant load. 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. First the oil/fuel mixture is too rich-50:1 is what you want to use (you do not mention what HP it is and if oil injected, then different reasons can also led to excessive oil usage). fryejs fryejs TT Member; Members; 58 posts; Location: Illinois; Posted November 14, 2011. hi guys sry if this is a stupid question but my bike is a 1998 yz250 its running will well, but idles really high. Some outboard cylinders simply crack from heat and stress. Good luck. That gas will work its way down inside the motor and drip out the exhaust. Gas will drip out when the motor is trimed up. I'm completely out of my element when it comes to outboards having never owned or worked on one. (Weak spark) and a good tune up. Then I notice a strong gas smell. The reason why it is black and gooy is because it has just run down the inside of the exhaust trumpet and or leg. iow, the fuel gases explode out of the chamger into the exhaust system. I've seen this on many of my/family's 2-strokes. I picked up a 2000 Mercury 20 HP 2 stroke and seem to be having a similar issue. K-Sports Marine is a Marine dealership located in Kenora, ON. Recommended Posts. Please get a manual on 2-strokes and read it. We serve the areas of Winnipeg, Dryden, Thunder Bay, and Brandon Exhaust smoke is the leftover burned fuel and air mixture that comes from a combustion engine. How 2 Stroke Outboards Work. Mercury introduced its Verado platform in 2004 with a complete line of ­higher-horsepower, supercharged four-stroke outboards designed to target the two-stroke market with ­equivalent power and torque features. White smoke may mean that water has entered one or more of the outboard's cylinders -- which can cause the engine to suffer irreparable damage -- but it also may mean that the water jacket on the exhaust manifold is leaking. Look in front the carbs and below them to see if there is any fuel there. And along with them comes a crop of questions, rumors and suspicions about the best gas to use in each and the best way to assure durability and performance. outboard Thanks Vics the fumes are,as you say causing a problem mostly with me breathing them in.Will try a proper oil as you mention,only using normal 2 stroke it clears when revs are high but yesterday when we got in a little rough water in the wash it started smoking again something to do with it working harder and coming out of the water due to waves maybe. what to do when gas is coming out of the choke. It is due to not being burned. Answered in 14 minutes by: 2/20/2010. Yes, there should be a slight haze and a characteristic odour from the exhaust, but if you can see spots of oil coming out, or oil dribbling out, then you are over oiling. Since it's a 2-stroke, especially an older one, I would think this is pretty normal, no? 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. Of the total number of small boats in the … Fuel was actually draining out of the exhaust pipe and onto the ground. Two of the most common problems when it comes to fuel supply in your outboard motor are bad fuel and a … For the purpose of 2 stroke engine troubleshooting, we are going to keep the plug inspection simple. after it sits for a while the gas evaporates and there is oil left. 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. In an outboard, though, it may mean something other than a tow to shore and an expensive repair. I checked my float bowl and the gas seems to be cutting off so it’s not flooding. Check for spark. Category : Boat. There is black gooy oil coming from the exhaust --it is 2 stroke and is lubricated by mixing oil with fuel. Were there any 2-stroke diesels that were valveless? I was hoping for some feedback on what this issue would cost (on average) if I took it to a mechanic. This means you get one combustion stroke or 'power cycle' for every 2 strokes of the piston in the crankcase, i.e. I think it would also be normal to be in an overly rich condition when first starting a 2-stroke, too. 2 Stroke Outboard Motor Won't Start. With that said, if the plug looks wet, you are getting fuel. Close examination shows that there is exhaust gas coming out of the hole in the leg where a stainless rod pokes through to release the anti-kick-up feature . After all, having the freedom to get out on the water whenever the mood strikes is one of the main reasons most people purchase a boat. what to do when gas is coming out of the choke. We offer new and used boats, ATVs, snowmobiles and outboard motors from Sylvan, Evinrude, Cub Cadet, Mercury & Yamaha, as well as parts, service and financing. You would burn about a gallon of oil every 1,000 miles if you used a two-stroke engine in a car. The oil atomizes with the gas in the carb, is sucked into the crankcase case where it is compressed by te desending piston and pushed into the cyclinder. Two-stroke engines do not use fuel efficiently, so you would get fewer miles per gallon. I may have mixed it a little heavier than 50;1 just in case because I bought it used and wanted to be safe. I am having oil and gas coming out of my exhaust and I don’t know why. They're not exactly known for being "clean burning", after all. With the Honda 4-stroke engine you are able to run much longer than 2-stroke motors going on the same course. Step 1. Share this conversation. What happens when you shut it off there is gas and oil in the bottom of the crankshaft this is normal. If the oil is clean or milky amber color then you have a seal problem that needs attention before you run it again. Could it be the jets because I have replaced them before … Blue Smoke is an indication that the engine is burning a lot of oil. Your outboard motor is the heart of your marine vessel and if it is having trouble with the fuel supply, it can put a damper on your day on the lake, river or ocean. Ok, so you have the spark plug out of the motor, if the business end of the spark plug is completely caked with black crud, do yourself a favor and get a new spark plug right away. It will eventually come out of the bottom of the engine by the water pump. Weedeater need a complete carburetor rebuild (excessive flooding) along with new spark plug. In a 2 stroke engine oil and gas are mixed you allready know that. The 2 stokes I have seen have re-circulation lines with check valves to pull the pooled oil out of the bottom of each section of crankcase and put it back in to be burned.
Do Rollins And Amaro Get Together, Foreshadowing In Fight Club Book, 1957 Chevy Wagon For Sale Ebay, Titration Curve Of Acetic Acid, How To Play A Scorpio Man At His Own Game, Moxie Mango Dart Pod,