avgas in 2 stroke outboard

Although we have lineup of four strokes, we also offer an extensive two stroke … 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. 01-17-2018, 12:17 PM. But I heard AVGAS lasts longer, is that true? Many factors will decide which type of outboard to use, like budget, the age of the boat and category. Moody had his two-stroke engine tested and found that it generates up to 25% more torque than four-strokes of the same capacity. Avgas is not a good idea straight but mix 2 gallons of avgas to 3 gallons of 93oct. If it pings move to the mix. West Marine is committed to outfitting your life on the water. Poor quality fuel 3. Sorry, I had to go do something so I was in a hurry. In the early 70's it was around 2 g/gal. A four stroke engine also creates the same four stages, suction, compression, expansion and exhaust. Across the range you’ll find an array of features that … Mix the oil just before use Fueling equipment You will need the right equip… That should give you plenty of octane, but dilute the AVgas enough that you don't get the combustion chamber deposits that you will get if you run 100% AVgas. 2 Stroke Outboard Motors for sale. The fuel's specific gravity and oxygenate content have the largest impacts on jetting. 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 … 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? 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. 1-15 of 47. The fuel 100LL replaced--100/130 avgas--did have a lead content higher then most pump auto gasolines (4 g/gal). Dwight gets the good stuff down South. May 3, 2012. Using fuels with percentages of ethanol or methanol higher than 10% may cause starting and/or performance … Because one of the things I hated about pump gas is my bike would ping on any gas a week or older. Gasoline 1. Type of oil B. Pump gas ( MoGas ) , works well. That one of the main positive properties of race gas. So what is your thoughts of using AVGAS in a 2-stroke? The manufacturer of the outboard that he uses is the first one to receive a Clean Air Technology Excellence Award by the EPA. Lenny … Every thing seems to start easier and run fine. Category Outboard Motors/2 Stroke … Heck, even moto814 uses it on his bike. He says that the perception that all two-stroke engines guzzle fuel, are smoky and noisy is a myth that he has busted. It has two grams of lead per gallon. 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. In this case, you would probably prefer a four-stroke outboard. Jetted correctly you should not experience a lean burn at WOT. 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. 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. It's always the same. A lot depends on the specific needs of the user when choosing between two-stroke vs. four-stroke outboards. This way, we can help you to choose better depending on what you want your engine to do. But although it is called low lead it has much more lead than MoGas or auto fuel ever had. The mixture of 2 gallons AVgas to 3 gallons pump fuel is a good one. Knowing how they work is half the battle to help you get the best outboard engine for you. 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. LL100 is blended with a high percentage of aromatics causing … Mercury actually quit building all of its traditional two-strokes, from 2.5 hp to 200 hp, following the 2005 model year. The suction, compression, expansion, and exhaust occur in two ‘strokes’ of the piston; thus, the engine gets dubbed as ‘two-stroke.’. He has a two-stroke engine which needs a spark plug change and gear oil change every 300 hours. When the fuel burns, it creates a high pressure in the cylinder head which pushes the piston and moves the crankshaft. What Kind of Fuel Does Your Marine Engine Need? With over 250 store locations, 100,000 products in stock, and knowledgeable Associates, trust West Marine for … If the fuel stabilizer has been used, simply run the engine for 2 … 100LL does have a lower specific gravity than typical for pump fuel. With outboard engines, the fundamental principle of the engine remains the same. In the same way, the expansion and exhaust strokes also occur. Follow Westshore Marine & Leisure on Wordpress! lol...ya I meant AVGAS is cheaper than race gas. But if your bike is pinging a lot, then why not just re-jet? One topic that keeps popping up concerning outboards is the comparison between Two Stroke Vs. Four Stroke Outboards. Mercury's proven TwoStroke engines deliver easy starting, gutsy performance, and great all-round reliability. You might want to try premium car gas at least once. The search feature is also faster if you are registered! The lead is what helps bump the octane of Mogas up much higher than you think it would. Some very high octane fuels will have more than 4 g/gal. 12 Small Fishing Boat Accessories to Buy Today. In fact when I'd replace the top-end there was very little deposits on the head or piston. 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 … And he says, it is smoother and more fuel efficient and quieter than any of the four-stroke outboards. Copyright© 2017 Dealer Spike All Rights Reserved. Engines & Parts. 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. 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. Avgas is the type of aviation fuel used in small piston engine powered aircraft within the general aviation community. I really liked the Etec G1 2.6 liter engines, those were officially the lightest outboards on the market in the 135 to 200 HP range. 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 … 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. Some of the two-stroke outboards today he says, are quieter, less polluting and more fuel efficient even than many four-stroke engines. Fuel oil ratio 4. "With a … Check out the Westshore Marine & Leisure Youtube page! My RM250 loved it when I mixed premimum 93 with that 110. Can you or anyone else elaborate on this? 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 … 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. The engine structure is relatively simple and maintenance is exceedingly easy. 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. Here, we bring out the advantages and disadvantages of two-stroke Vs. four-stroke outboards to see what each type has to offer. Extra Maintenance: A four-stroke outboard needs more regular maintenance and checkups than a two-stroke outboard. I would not use AV … A two stroke engine produces the suction and compression strokes of the piston in a single action. I am going to sell my bike soon and get a 2-stroke. 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. 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 … 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). Year 2013 . What I don't understand is what you're seeing in that data that suggests 100LL wouldn't work well in a four stroke. By Most outboards are designed for maximum efficiency with 87-octane gasoline. Also … I have a friend with a Jeaneau 27 with a outboard 8hp at full speed he cruise at 6.5knts. Alert for new Listings. The expansion stroke is the stage which produces the power that drives the engine. According to Moody, he gets more power and torque from his two-stroke outboard as compared to a four-stroke engine of equivalent rating. Disadvantages and advantages of using AVGAS for. Therefore, add oil slowly and in … Normally I just run Mobil 93 without a problem. 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. It certainly is. Quick Reference 1. ... Never had much trouble starting 2 stroke outboards in the cold (70 is a hot day where I am from lol) Snow machines seem to start better when it is … Any Body running straight 100LL in there 2 Stroke? There are four stages to the functioning of an internal combustion engine – suction, compression, expansion, and exhaust. Vapor lock (winter vs. summer gasoline formulas) 4. You also need to consider the total money you are spending. Disadvantages of a Four-Stroke Outboard . So, let’s get deeper into the pros and cons of each category of outboard. Ok the ?? I know many aircraft that sit for many months and after a quick fuel sump they are ready and lgal to fly... You need to be a member in order to leave a comment. Check out the Westshore Marine & Leisure google plus page! 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. A common belief is that a fourstroke outboard has more power than the two-stroke variety. My question is should I try it in my Yamaha 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. While this should give you plenty of octane, it still is not as consistant as race gas. This, he can do himself. Thats all I have run for 30 years. is buy a 25 4 stroke or 2 stroke?? Avgas in outboards? All the newer Yamaha outboards and their components have been designed to withstand the corrosive properties of ethanol fuels, so if you can’t find an ethanol–free gas pump in your area … About half of what leaded race gas … But then it quietly brought back three models: the 50 Classic, the 90 Classic … Any extra does you no good. Avgas is designed for constant rpm at high altitude with relatively low compression , low rpm engines. Most popular racing fuels are leaded. Keep the AVgas in reserve for problems. The distillation curve has little to do with that. Avgas cheaper than Avgas ?????? Jetting should always be confirmed when changing fuels. 100LL Avgas will work well. Starting Issues: There is a … RideRaceLive123, January 16, 2007 in General Dirt Bike Discussion. So, he’s not paying $4,000 a year to maintain his two-stroke outboard. Outboard Expert: EPA Delays Decision on E15 Ethanol Fuel. You have to register before you can post: click the register link above to proceed. Unfortunately, Evinrude is phasing them … Which Navigation Lights Does Your Boat Need? However, depending on how the fuel burns, we classify the engine as a two-stroke outboard or four-stroke 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. DFI Direct Fuel Injection Two Stroke Outboards: The Outboard Expert. ... a pair of 2… First 80/87 then 100LL.. Premix, or injection 2 strokes for snowmachines, outboards pre-mix, chainsaws, weedwhackers, no problems. Make Evinrude. boats.com Senior Editor, Lenny Rudow, joins Norfolk Marine's Chris Breeden to walk us through the 100 hour maintenance interval for your outboard engine. 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 will not only over-capitalize your rig but also put an undue load on an old boat and trailer. The two stroke outboards are lightweight and compact yet deliver high power output. However, it is worthwhile to note that advanced technology has eliminated many of the disadvantages of four-stroke outboards. Model E40DPL. AV Gas is lighter than racing gasoline thus more fuel/larger jetting is required. He also says that his two-stroke outboard is at least 50% quieter than the early generation two-stroke engines. All the above information is based on generalizations about conventional two-stroke and 4-stroke engines. Secondly, several factors decide which of the two types of outboards will be suitable. I think that you meant to say "AVGAS is cheaper than RACE gas." Disadvantages and advantages of using AVGAS for 2-strokes.. Copyright© ThumperTalk, Inc. - All rights reserved. If you use your boat for deep-sea trawling, on the other hand, fuel-efficiency would be a priority. This week, we helped our neighbor Adventureman Dan aboard S/V Tethys to diagnose and fix his two-stroke Mercury outboard. (Low pollution outboards will come as either four-stroke or direct fuel-injection two-stroke engines.) For the test run, while Moody’s boat consumed 34 litres of fuel, the control boat used 36 litres. Like Dwight said, mix it with premium gasoline. Two stroke race bikes like leaded fuel. To keep fuel fresh, either use within 30 days or use a fuel stabilizer drip concentrate cartridge in the fuel. Follow Westshore Marine & Leisure on Twitter! Moody has been in the fishing field for over 30 years. 2013 EVINRUDE E40DPL. You can visit us at www.WestshshoreMarine.ca for more information and access to great free tools like Trade-In Appraisals and Live Interactive Chat. But thank you for all your comments. Moody says that his Evinrude two-stroke outboard costs are at least 50% less to maintain that a four-stroke outboard of similar capacity. Mercury® TwoStroke Outboards. 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. AV Gas has a MOR (motor octane rating) of 96, R+M/2 rating of 100, and ROM (Research Octane Rating) of 106. Hence a four-stroke outboard should be the preferred choice. The injection of the fuel and the release of burnt gases is controlled by valves which open and closed through rotating camshafts. I understand what distillation specs are. For instance, a tournament angler who needs to get to a particular location fast, before the competition gets there. That means 100LL will/could cause a lean condition--but only if the engine wasn't rejetted appropriately. A pilot friend tipped me to using av gas in my lawnmower, chain saw, and weedeater and generator. From what I've seen, 4 g/gal would not be atypical for a leaded racing fuel. Sort By. Yamaha four-stroke outboards have a tapered oil sump design (smaller at the top than the bottom), so the closer the oil level is to full, the faster it fills. #2. 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. Each service costs $800. 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. High-performance outboards extract more power from gasoline by creating higher pressure in … I know this because I run it in all my bikes, 2 stroke and 4 stroke. the disadvantage is running a 2 stroke-J/k. 100LL has a ASTM specification for lead content of 2.1 g/gal. I want 8 minimum. According to the EPA, industry averages in the 50's and 60's were about 2.4 g/gal. 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. I've been using it for these engines and like the results. A. Charles Plueddeman. 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 … However, in a four-stroke outboard, these four stages are distributed in four strokes of the piston, thus making it a four-stroke engine. These aircraft are predominantly used by private pilots and flying clubs … You also need to factor in the frequency of use and location. Fresh Fuel ONLY 5. To begin with, this is a misconception as the reverse is true. 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. Two-stroke engines start with a single touch of the key even during winter. Like Westshore Marine & Leisure on Facebook! People tend to make generalizations about these two types of outboards. That bike flat out screamed and the response was ultra crisp. Then you can fuel up just about anywhere. Premixed racing fuel 3. But then again the Cam2 dealer 8 miles from my house was selling 105 and 115 leaded $4.50 a gallon. E85 contains 85% ethanol and must not be used in Honda Marine outboards. Increasing the oil mix ratio 2. Premium ethanol-free automobile gasoline - Aviation Gasoline - Automobile gasoline with ethanol 2. Sticking piston rings C. Two stroke oils 1. I don't know guys. About lead content: 100LL and the old leaded fuels of yesteryear contain similar levels of lead. To start viewing messages, select the forum that you want to visit from the selection below. Best gasoline 2. You might even do good with 1 part AV gas to 4 parts premium. “Conventional” motors/engines manufactured before 2006 are exempt from the new … 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. Ethanol-laced gasoline is not recommended for small engines. You want just enough octane to prevent pinging. the difference in price is amazing a 4stroke Mercury cost $3,400 and a 2 … Roscoe, Illinois. I ran straight Sunoco Avgas mixed 50:1 with Amsoil Interceptor in my '01 YZ125 for 3 years with 0 problems. 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. Approved brands of full synthetic oils 3. 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.

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