The distillation curve has little to do with that. Alert for new Listings. Charles Plueddeman. Copyright© 2017 Dealer Spike All Rights Reserved. It's always the same. Thats all I have run for 30 years. Each service costs $800. 100LL does have a lower specific gravity than typical for pump fuel. Mercury actually quit building all of its traditional two-strokes, from 2.5 hp to 200 hp, following the 2005 model year. I don't really mean it but couldn't resist,I'm not a two stroke racist:busted: Gee, there's a Mobil station 15 miles from my house that sells 110 leaded for $3.50 a gallon, that was when regular was going for $2.75. Moody says that his Evinrude two-stroke outboard costs are at least 50% less to maintain that a four-stroke outboard of similar capacity. Best gasoline 2. But then again the Cam2 dealer 8 miles from my house was selling 105 and 115 leaded $4.50 a gallon. Our premium gas out here in California is only 91 octane. I would not use AV … Two stroke race bikes like leaded fuel. With over 250 store locations, 100,000 products in stock, and knowledgeable Associates, trust West Marine for … Engines & Parts. So, he’s not paying $4,000 a year to maintain his two-stroke outboard. More Buying Choices $14.41 (2 used & new offers) Ogrmar Fuel Line Assembly 3/8" Inner Dia 5/8" Outer Dia Hose Line Marine Outboard Boat Motor RVs Fuel Assembly with Primer Bulb Steel … What I don't understand is what you're seeing in that data that suggests 100LL wouldn't work well in a four stroke. Check out the Westshore Marine & Leisure google plus page! But although it is called low lead it has much more lead than MoGas or auto fuel ever had. But if your bike is pinging a lot, then why not just re-jet? Mercury® TwoStroke Outboards. The fact is that if outboards of the future require such devices as catalytic converters, they would in fact be at an advantage, as even with these devices attached they would be lighter and … Type of oil B. DFI Direct Fuel Injection Two Stroke Outboards: The Outboard Expert. Avgas cheaper than Avgas ?????? You also need to factor in the frequency of use and location. Keep the AVgas in reserve for problems. That one of the main positive properties of race gas. #2. i ran avgas in my 00 rm 80, my 02 yz85, my 03yz125, and my 05yz125 at 40:1 with amsoil dominator with no problems what so ever. I don't know guys. But then it quietly brought back three models: the 50 Classic, the 90 Classic … In this case, you would probably prefer a four-stroke outboard. Pump gas ( MoGas ) , works well. Whether you’re having boat problems or just thinking of upgrading or adding a Four-Stroke or Two-Stroke Outboard Engine to your boat, we hope that this article gives you a better understanding of 2-Stroke and 4-Stroke Engines. The search feature is also faster if you are registered! $4,500 . Avgas in outboards? "With a … Dwight gets the good stuff down South. Using fuels with percentages of ethanol or methanol higher than 10% may cause starting and/or performance … For the test run, while Moody’s boat consumed 34 litres of fuel, the control boat used 36 litres. 9.9 hp - 15 hp - 20 hp - 25 hp - 40 hp - 50 hp - 60 hp - 75 hp - 90 hp - 115 hp - 135 hp - 140 hp - 175 hp - 190 hp - 200 hp - 220 hp - 225 hp - 250 hp - 260 hp - 300 hp - 310 hp - 320 hp - 350 hp - 375 … He says it has no alcohol and is about 105 octane and does not go bad sitting in a gas can like premium auto gas. Check out the Westshore Marine & Leisure Youtube page! no exemptions for small outboards AMEC says in its news release on this matter that exemptions for small outboard engines were never an idea that would carry water. Because one of the things I hated about pump gas is my bike would ping on any gas a week or older. According to Moody, he gets more power and torque from his two-stroke outboard as compared to a four-stroke engine of equivalent rating. Then you can fuel up just about anywhere. AVGas works well in 2-strokes, but shouldn't be used in 4-strokes because the distillation curve is all wrong and will cause a super lean condition. Sorry, I had to go do something so I was in a hurry. Some of the two-stroke outboards today he says, are quieter, less polluting and more fuel efficient even than many four-stroke engines. A lot depends on the specific needs of the user when choosing between two-stroke vs. four-stroke outboards. By However, in a four-stroke outboard, these four stages are distributed in four strokes of the piston, thus making it a four-stroke engine. Most popular racing fuels are leaded. You might even do good with 1 part AV gas to 4 parts premium. About half of what leaded race gas … In the early 70's it was around 2 g/gal. AV Gas is lighter than racing gasoline thus more fuel/larger jetting is required. But let’s first take a quick look at how an internal combustion engine works: There are two categories of internal combustion engines, spark ignition (SI) and compression ignition (CI). He has a two-stroke engine which needs a spark plug change and gear oil change every 300 hours. Sort By. Follow Westshore Marine & Leisure on Twitter! I understand what distillation specs are. In fact when I'd replace the top-end there was very little deposits on the head or piston. The two stroke outboards are lightweight and compact yet deliver high power output. Also … To quote a case in point, Ryan Moody, owner of a thriving fishing charter business has been using advanced two-stroke outboards for his boats for quite some time. Normally I just run Mobil 93 without a problem. My question is should I try it in my Yamaha 2… There are four stages to the functioning of an internal combustion engine – suction, compression, expansion, and exhaust. E85 contains 85% ethanol and must not be used in Honda Marine outboards. These aircraft are predominantly used by private pilots and flying clubs … Here, we bring out the advantages and disadvantages of two-stroke Vs. four-stroke outboards to see what each type has to offer. I was told by Rotax Rick over a year ago, that he had inspected two Rotax 582UL's that had about 400hrs each on them, both … The manufacturer of the outboard that he uses is the first one to receive a Clean Air Technology Excellence Award by the EPA. While the spark of the spark plug burns the fuel in an SI engine, CI engines work on the principle of fuel which burns due to high-pressure compression. However, it is worthwhile to note that advanced technology has eliminated many of the disadvantages of four-stroke outboards. I know this because I run it in all my bikes, 2 stroke and 4 stroke. If you have any questions or would like some help even if its helping you determine if a used boat motor is safe we can help. Extra Maintenance: A four-stroke outboard needs more regular maintenance and checkups than a two-stroke outboard. Westshore Marine is one of bigger marine dealerships in Canada with a vast selection of outboards options available. Secondly, several factors decide which of the two types of outboards will be suitable. My RM250 loved it when I mixed premimum 93 with that 110. I've looked at the distillation curves of 100LL, typical pump gas, and a whole slew of different racing gasolines and I'm not seeing what your talking about. Mix the oil just before use Fueling equipment You will need the right equip… It certainly is. Therefore, add oil slowly and in … Some very high octane fuels will have more than 4 g/gal. Starting Issues: There is a … The fuel 100LL replaced--100/130 avgas--did have a lead content higher then most pump auto gasolines (4 g/gal). Hence a four-stroke outboard should be the preferred choice. You might want to try premium car gas at least once. The fuel's specific gravity and oxygenate content have the largest impacts on jetting. A. 12 Small Fishing Boat Accessories to Buy Today. Fresh Fuel ONLY 5. Copyright© ThumperTalk, Inc. - All rights reserved.ThumperTalk® is a registered trademark. AvGas has a lower specific gravity so it will require a change in air-fuel ratio calibration for the engine to perform at its best. I ran straight Sunoco Avgas mixed 50:1 with Amsoil Interceptor in my '01 YZ125 for 3 years with 0 problems. Sticking piston rings C. Two stroke oils 1. Lenny … May 3, 2012. Two-stroke engines start with a single touch of the key even during winter. Outboard Expert: EPA Delays Decision on E15 Ethanol Fuel. With two-stroke and four-stroke outboards, there is no ‘good’ or ‘bad.’ Each type of outboard has its advantages and disadvantages and which one would be more suitable for you largely depends on your particular requirement. The injection of the fuel and the release of burnt gases is controlled by valves which open and closed through rotating camshafts. He says that the perception that all two-stroke engines guzzle fuel, are smoky and noisy is a myth that he has busted. He also tested the fuel efficiency by running his boat powered by a two-stroke engine alongside one with a four-stroke engine as a control. This week, we helped our neighbor Adventureman Dan aboard S/V Tethys to diagnose and fix his two-stroke Mercury outboard. If you have any questions or would like some help even if its helping you determine if a, choosing between two-stroke vs. four-stroke outboards, 2019’s List of the Best Recreational Pontoon Boats for Sale. Mercury's proven TwoStroke engines deliver easy starting, gutsy performance, and great all-round reliability. AV Gas has a MOR (motor octane rating) of 96, R+M/2 rating of 100, and ROM (Research Octane Rating) of 106. A pilot friend tipped me to using av gas in my lawnmower, chain saw, and weedeater and generator. Premium ethanol-free automobile gasoline - Aviation Gasoline - Automobile gasoline with ethanol 2. And he says, it is smoother and more fuel efficient and quieter than any of the four-stroke outboards. So, let’s get deeper into the pros and cons of each category of outboard. To begin with, this is a misconception as the reverse is true. Disadvantages and advantages of using AVGAS for. 100LL has a ASTM specification for lead content of 2.1 g/gal. You also need to consider the total money you are spending. Two-Stroke Vs. Four-Stroke Outboards: Advantages & Disadvantages, One topic that keeps popping up concerning outboards is the comparison between, A lot depends on the specific needs of the user when, However, to get a clearer idea of which of these two types of outboards would be more suitable, you need to understand the difference between the two. From what I've seen, 4 g/gal would not be atypical for a leaded racing fuel. Unfortunately, Evinrude is phasing them … This, he can do himself. Any Body running straight 100LL in there 2 Stroke? Many factors will decide which type of outboard to use, like budget, the age of the boat and category. The suction, compression, expansion, and exhaust occur in two ‘strokes’ of the piston; thus, the engine gets dubbed as ‘two-stroke.’. Seizures: The most common seizure is a “cold seizure,” which is caused by riding too hard before the engine is up to its normal operating range of 175 to 185 degrees Fahrenheit.Cold-seizure … Moody had his two-stroke engine tested and found that it generates up to 25% more torque than four-strokes of the same capacity. Increasing the oil mix ratio 2. Can you or anyone else elaborate on this? ... a pair of 2… Avgas is not a good idea straight but mix 2 gallons of avgas to 3 gallons of 93oct. “Conventional” motors/engines manufactured before 2006 are exempt from the new … 01-17-2018, 12:17 PM. Category Outboard Motors/2 Stroke … So what is your thoughts of using AVGAS in a 2-stroke? RideRaceLive123, January 16, 2007 in General Dirt Bike Discussion. This process is a repetitive action, and as the crankshaft is attached to the other moving parts of the engine, it causes them to move. Every thing seems to start easier and run fine. It looks like I will be using AVGAS, especially since Rich Ronhich(sp) and moto814 said it is a good gas and better than pump. But I heard AVGAS lasts longer, is that true? When the fuel burns, it creates a high pressure in the cylinder head which pushes the piston and moves the crankshaft. Although we have lineup of four strokes, we also offer an extensive two stroke … About lead content: 100LL and the old leaded fuels of yesteryear contain similar levels of lead. However, depending on how the fuel burns, we classify the engine as a two-stroke outboard or four-stroke outboard. Like Dwight said, mix it with premium gasoline. And if my bike pings, I am thinking of using AVGAS, since it is much cheaper than AVGAS and a small airport is only across town. Moody gives an example as follows: If he ran a four-stroke engine, servicing it every 100 hours, he would service it five times a year. All the above information is based on generalizations about conventional two-stroke and 4-stroke engines. One topic that keeps popping up concerning outboards is the comparison between Two Stroke Vs. Four Stroke Outboards. What Kind of Fuel Does Your Marine Engine Need? 100LL Avgas will work well. Which Navigation Lights Does Your Boat Need? Disadvantages and advantages of using AVGAS for 2-strokes.. Copyright© ThumperTalk, Inc. - All rights reserved. Jetting should always be confirmed when changing fuels. 2013 EVINRUDE E40DPL. is buy a 25 4 stroke or 2 stroke?? A zippy two-stroke engine would fit the bill. That means 100LL will/could cause a lean condition--but only if the engine wasn't rejetted appropriately. Ethanol-laced gasoline is not recommended for small engines. But one more question that I couldn't find, how long can AVGAS be stored in a plastic container until it starts loosing it octane and whatever else it looses? So much is being said about both types of engines, that it is worthwhile to take a closer look at the more delicate points of these two different types of outboards to get a better understanding of each one. Moody has been in the fishing field for over 30 years. While this should give you plenty of octane, it still is not as consistant as race gas. Model E40DPL. The engine structure is relatively simple and maintenance is exceedingly easy. Year 2013 . The lead is what helps bump the octane of Mogas up much higher than you think it would. Five years ago Mercury rolled out a new 2.1-liter outboard in 75, 90, and 115 HP ratings, and these engines have close to the most displacement in their class while keeping … But let’s first take a quick look at, Westshore Marine is one of bigger marine dealerships in Canada with a vast selection of outboards options available. According to the EPA, industry averages in the 50's and 60's were about 2.4 g/gal. If the fuel stabilizer has been used, simply run the engine for 2 … If you have an old boat and trailer, for instance, it may not make sense to throw additional money towards an expensive four-stroke outboard motor. In the same way, the expansion and exhaust strokes also occur. I've been using it for these engines and like the results. For instance, a tournament angler who needs to get to a particular location fast, before the competition gets there. That bike flat out screamed and the response was ultra crisp. You have to register before you can post: click the register link above to proceed. I am going to sell my bike soon and get a 2-stroke. It has two grams of lead per gallon. 2 Stroke Outboard Motors for sale. Most outboards are designed for maximum efficiency with 87-octane gasoline. The first EPA regulation of lead in gas occured in the late 70's and stepped down the max lead levels to .5 g/gal by the early 80's.