2 stroke vs 4 stroke outboard fuel

With advances in technology the offerings are greater than they have ever been before. this.is_ajax_running = false; Holders, Cabin Accessories & Switches, Shore Power & AC You must log in or register to reply here. Cable, Marine Batteries & } var tdBlockNonce="3ecf9206da"; var tdLocalCache = {}; 2 stroke manufacturers are closing in on that as well. Effect on Performance: The 4-stroke lubrication system needs regular maintenance (oil and filter changes), whereas the 2-stroke system is virtually maintenance-free. Anchor Box Anchors, Fishing Rod & Reel This additional hardware adds weight and physical size to the motor, which can end up being a disadvantage. It isnt legal or tax advice. Sockets, Marine Electrical & Rings, Prop Nut Kits & A 2-stroke engine completes a power cycle in just two strokes instead of 4 strokes. Supplies, Boston Whaler, 1972-1993, This allows for unburned fuel to remain in the chamber and also to escape out of the exhaust without being combusted, reducing fuel efficiency and increasing hydrocarbon emissions. Accessories, Marine Electrical 13,406. this.id = ''; Terminals, Marine Fuse Blocks & The gases escape through the exhaust port as the cylinder moves up again. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable He can be reached through his web site www.HayesStudios. Harware, Marine Nuts, Bolts, & Recently technology has arrived enabling the more intricate and complicated four-strokes to be engineered effectively for the marine environment, producing the results required by the demanding boat owner. However, 4-stroke outboards are becoming increasingly lighter compared to years past. this.td_current_page = 1; // In the following articles we will delve into what new technology is being used by each of the major outboard manufacturers to improve their range of motors and will try to enlighten the new buyers as to which motor would be the best option for their application. The crankshaft makes two rotations for every one cycle of the piston. Try the consumption figures on the 300hp Mercury Verado, below 3000rpm they aren't too bad around 55 lph, go up to 5000 rpm and they go up to 130 lph! What's better for a boat motor 2-stroke or 4-stroke? Bilge Pump, Tires, Rims, & Hub Its best to follow their exact recommendations. Galley, Barbeque //td_block class - each ajax block uses a object of this class for requests var td_user_incorrect="Username incorrect! Boat Gel Coat - Spectrum Color, Pumps and "; 4 stoke outboards are heavier than an equivelent 2 stroke with the same power, often due to their larger relative size. Sealant, & Ventilation, Interior & Cabin Platforms, Slide Deals, Electronics 4 strokes are more mechanically complex around power block and head so consequently to a higher level of skill to maintain and repair. 2-strokes are designed to generally run at a higher RPM and produce more power, but that results in them wearing out faster and requiring more maintenance . Your original statement that 2 strokes are less efficient than 4 strokes is based old 2 stroke technology. Meters, Marine Electrical Panels var tds_theme_color_site_wide="#4db2ec"; Their emissions meet ever-increasing environmental policies and are being welcomed exclusively in certain bodies of water due to their environmental friendliness. if ( -1 !== navigator.userAgent.indexOf('Safari') && -1 === navigator.userAgent.indexOf('Chrome') ) { Four-stroke outboards generally have better fuel economy than 2-strokes. This is where the 2-stroke's power advantage comes from, however they are less eco friendly because they produce higher emissions commensurate with their more simplistic nature. var td_retype_pass_incorrect="Retyped Pass incorrect! Let's take a look at some pros and cons of each type. } --> Login, Boats Seats, Pontoon Boat Seats & All the major manufacturers claim their motors are superior and each brand boasts unique technology that puts its motors above the competition. } Re: 4 vs 2 stroke @ 90 hp Ok, maybe I can help a bit. One of the most common ways is by boat, whether it be with a 2-stroke or 4-stroke motor. Rays123 Senior Member. Many VERY large diesel engines (EG Super-Tankers) are 2-stroke, This is because they are direct drive (propeller shaft attached directly to the crank with no gearing or . Older two-stroke engines are not as fuel-efficient or environmentally friendly as modern engines. These engine types feature one compression stroke, followed by an exhaust stroke. Four-stroke motors are cleaner, smoother, and more economical. JavaScript is disabled. One advantage of a 2-stroke engine is that it weighs less than a comparable 4-stroke outboard motor. Boat, Sell A background: -o-linear-gradient(top, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.6) 100%); var tds_snap_menu=""; Give some examples of a two-stroke engine. Should you go with a single engine, duals or even triples? Continue reading with our How to Buy an Outboard Engine Series. 2-stroke outboards can be adapted or built to run on a wider variety of fuels including gasoline, oil, kerosene, and diesel fuel. var tds_more_articles_on_post_time_to_wait=""; tdLocalCache = { Parts, Boat Tubing & Kits, Boat Trailer Shop Varnish, Marine Adhesives, Deals, Pumps & Plumbing Back in the day, four-strokes could just not output the same power in a comparable physical size of the two-strokes. Honda 5hp Outboard, Boat htmlTag.className += ' td-md-is-iemobile'; Two-stroke and four-stroke motors are based on the same principles of a combustion engine but are engineered very differently. 4 stroke vs 2 stroke outboard. "; Video, GPS Chartplotters & They had no need to claim that 4 strokes, because they have so many parts, are more likely to break, cost. Locks, Boat Deck The 4-stroke will have 8 valves. Kits, Seadog Stainless Steel Cup Both 2-stroke and 4-stroke have cooling jackets - and thermostats and water pumps - so - in theory should be running eqully cool. } Seemingly at the time, two-strokes were the perfect solution. JavaScript is disabled. var tds_more_articles_on_post_enable=""; htmlTag.className += ' td-md-is-firefox'; Jacks, Boat Trailer Brakes & These motors do, however, enjoy a reputation for being extremely reliable, easy to start and they operate smoothly and quietly at idle or low speed. Acessories, Fish Cleaning As a result, the weight comparison of a 2-stroke vs. 4-stroke engine is now less of a concern. Two stroke motors function by completing a power cycle (intake, compression, power and exhaust) with one turn of the crankshaft and a resulting two strokes of the piston. It is for this reason that 2-strokes are smaller, lighter and less complex than 4-strokes, they simply have fewer moving parts. Im looking into buying a new or possibly used boat if its in good condition. Axles, Boat Trailer Tie A 2-stroke engine is known for its fast acceleration, higher power, portability, and smaller size. I'm looking to justify swapping out my 225 2 stroke for a 4 stroke and was told by several converts that they are getting 35-40% better fuel mileage with the 4 stroke over a carbed 2 stroke. After all, this is the mechanism that decides whether or not your boat starts. Wells, Toilet & Waste 2 Stroke Engines vs. 4 Stroke Engines. Probably as much as the boat is worth but will add very little extra value. Trolling Motors, Shop (function(){ If the current engine works, a new one will work as well. This isnt necessarily true. var td_pass_empty="Pass empty! Plus, get the cost of ownership calculator so you know precisely what your cost of ownership will be.https://www.BoatersSecretWeapon.com/ToolkitFirst-Time Boat Buyer's Academy and Magic Money Saving Method for buying the perfect boat at the absolute best price without the confusion, overwhelm and frustration most experience. Boaters throughout Alaska utilize a variety of ways to fish, recreate, and access remote lakes, rivers, and coastline in the summer. The first thing to keep in mind is that both 4-stroke and direct injection 2-stroke outboards on average are more than 35 percent better than traditional carbureted 2-strokes on fuel consumption, according to Tom Mielke, outboard marketing director for Mercury Marine. if ( !!navigator.userAgent.match(/Trident. Manufacturer, Boat Tables & Rollers, Boat Trailer everywhere. Oil containers will be generated by either new 2-stroke oil or new 4-stroke crankcase oil, and these can be recycled. this.ajax_pagination_infinite_stop = ''; //show load more at page x Technology has made significant advancements to improve fuel economy and emissions - while maintaining acceleration and power. COMPLETE NATIONWIDE BOAT INSURANCE COVERAGE. var tdThemeName="Newspaper"; background: rgba(0,0,0,0.5); Fasteners, Boat Windshield if ( /chrom(e|ium)/.test(navigator.userAgent.toLowerCase()) ) { Holder, Anchor & Dock Tables, Minn Kota Bullet Skimmer, Paint and Tackle Boxes, Fishing Bait & 2-Stroke vs 4-Stroke. As the fuel makes its way through the engine, it consumes elements of the oil for lubrication. By comparison, standard 2-strokes blow 1/3 of their oil directly into the air/water. 2-stroke engines produce more torque at higher RPM's than 4-stroke engines. Terminal your boats Gel Coat Match, Shop A tournament angler who wants to get to the middle of the lake ASAP would likely appreciate a zippy throttle and lightweight 2-stroke. 3. Fenders, Boat Trailer var td_please_wait="Please wait"; GPS Chartplotter and Fish Finder Combo, Find That being said, I don't think you can buy a new outboard (two or four stroke), that does not have a complex electrical system. Along with greater power, speed and efficiency came more sophisticated motors with more complex components and systems. Vinyl, Floating Boat Pumps, Marine Pump Replacement You must log in or register to reply here. exist: function (resource_id) { Boat Repair, Boat Paint & "; } What horsepower will allow for the best performance of your vessel? All rights reserved. 1. Some are just as quiet. You cannot compare 2-stroke and 4-stroke fuel consumption at the same rpm because a 2-stroke will almost always be pushing the boat faster than a 4-stroke at the same RPM. } img#wpstats{display:none} .td-menu-background:before, PFDs, Roof Racks, Carriers, Communication, Auto Pilot 2-stroke engines also have few parts and are lightweight. Its a Boston Whaler Outrage, its about 42ft if I remember correctly. Deals, Electrical var tds_general_modal_image="yes"; Learn how your comment data is processed. Towers, Tow Ropes & Accessories, Marine DC Power Plugs Deals, Dealer Since a 2 stroke has twice as many firing strokes per 1000 revs than a 4 stroke but each power stroke is less efficient, the two have quite different power characteristics. As these performance-based advancements continue to improve, many boaters choose a 4-stroke as their go-to motor. All, Anchor & ACCOUNT, Find Whether you have a smaller or larger boat, weight should be a consideration when purchasing an outboard motor. if ( user_agent.indexOf("android") > -1 ) { You are responsible to implementing the information in a safe \u0026 practical manner for your specific situation! "; Distribution, ProMariner ProNautic Modern 2 strokes are just as clean as 4 strokes. From small 2.5hp kickers to whopping 557hp monsters, the choices seem endless. background: -ms-linear-gradient(top, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.6) 100%); var td_animation_stack_general_selectors=".td-animation-stack img, .td-animation-stack .entry-thumb, .post img, .td-animation-stack .td-lazy-img"; Blame gearing and prop requirements for that. So this makes the 15hp heavy, but the 25hp is the lightest one out there. Zincs, Generator However, four-stroke outboards have valves for each cylinder that are held closed by springs and are opened at the appropriate time by a camshaft driven by a crankshaft. var tdBlocksArray = []; //here we store all the items for the current page htmlTag.className += ' td-md-is-os-x'; Marble, Engine [RzA 6 W 'g =i=zI 7U ML-,ml ]\=}|h*0vqEt]\& ]5DgA- T"pi Y|n,6 " gcmeh C->'a.r6 "n \W*x A ` >w+zU `7P Iv 9 "a8vF#E3 . } One thing to consider, many lakes and bodies of water are off limits to all 2-stoke engines. One problem though, I cant decide on 2 stroke or 4 stroke. However, 4-stroke outboards are becoming increasingly lighter compared to years past. As for environmental concerns, 4 stroke outboards produce far less harmful emissions, which can be as much as 90% cleaner than those from a similar sized 2-stroke motor. After reading this article, it seems like advantages in technology have made the decision between two and four stroke very subjective. Caulking, Marine Engine Many people who run in lakes and rivers prefer 4 stroke boat motors because they make great trolling motors and meet the 2006 EPA mandated requirements. var htmlTag = document.getElementsByTagName("html")[0]; All told, the used oil that is burned is combusted very cleanly and recaptures a useful energy source. Acessories, Fishing Outriggers & })(); November 29, 2017 at 2:45 pm #68065. Its important to understand each engines unique characteristics - including fuel economy, reliability, speed, and weight. var td_ad_background_click_link=""; The 2-stroke will have no cam shaft, lifters, pushrods, or timing chain --- the 4-stroke will have all of these. Tubes, Shop Four-Stroke Outboard Motors In a four-stroke engine, the five combustion cycle steps occur in four strokes of the piston. Charts & Protection, Ladders, Steps, & Lighter and fewer moving parts. var td_pass_pattern_incorrect="Invalid Pass Pattern! *rv\:11\./) ) { Now, Shop :https://boaterssecretweapon.com/pages/boater-bootcampFREE Boat Buyer's Toolkit for new or used boat shoppers will give you 28-pages of check-lists, questions to ask and how to demo the boat the right way so you don't miss a thing. this.td_filter_value = ''; //current live filter value for Sale, Buy A Biminis, Paint and As time has gone by the simplicity of these motors has diminished as the technology advanced. Older two-stroke engines rely upon either mixed fuel, which combines a two-cycle oil with gasoline . Accessories, Boat Lift Canopy As for environmental concerns, 4 stroke outboards produce far less harmful emissions, which can be as much as 90% cleaner than those from a similar sized 2 . The family had a 90hp Etec on a center console boat and the economy was simply staggering, in fact it was better than the Honda 4 stoke outboard we currently have. filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='rgba(0,0,0,0.5)', endColorstr='rgba(0,0,0,0.6)', GradientType=0 ); Waxes, Boat Cleaning Cushions, Lexington Should you buy a Two Stroke OR Four Stroke Outboard Engine? Forums, Find Boat Clubs and Fractional Ownership of Boats Thriving, See More Fish, Look Real Sharp in Hobie Monarch Float Sunglasses, Hodges Top Angler, Jolly Hull Top Boat in Virgin Islands Game Fishing Clubs Annual Dolphin Derby, Antilles Power Marine Center in Puerto del Rey Marina Celebrates First Anniversary, Garmin Helps Mariners See The Bahamas Undersea Better, Transat Paprec, Formerly Transat enDouble Concarneau Saint-Barthlemy,Becomes First Mixed Double-HandedTransatlantic Race, Caribbean Multihull Challenge Announces prize for the winner of the CMC Trifecta Caribbean Multihull Challenge, Rum Review: Cane Island Venezuela 8-Year-Old, Captain Morgan vs. var td_email_user_pass_incorrect="User or password incorrect! I think that the boat weights in the graph are for boat only and not including engine and gear, but all the same, it is impressive. But as time moved on, the two-stroke version we know today became the mainstream outboard flooding the market and became the outboard motor of choice. var td_email_incorrect="Email incorrect! Boats, Propeller Parts & 2-stroke outboard motors are typically less expensive. var td_viewport_interval_list=[{"limitBottom":767,"sidebarWidth":228},{"limitBottom":1018,"sidebarWidth":300},{"limitBottom":1140,"sidebarWidth":324}]; Furniture, Boat Seat Pedestals & Hardware, Boat Cabin Covers, Boat Wiring & Yamaha's new 4-stroke range uses the same base engine for their 15, 20, and 25hp models. var td_ad_background_click_target=""; }. } Evinrude and Yamaha makes a very fuel efficient 2 stroke . Good power to weight ratio and high engine rpm plays a vital role to enhance vehicle performance. Trailer Winches, Shop As with any purchase - do your research, read customer reviews, and check ratings. I think a tip that could be helpful for choosing which outboard motor is right for you would be to speak with people that utilize a four or two stroke and ask what they like or dislike about their motor size. Depending on how much fuel you use a year it would take long to justify the difference with gas at $3 a gallon. That percentage is based on how an average boater would use an outboard, he says. A typical 4-stroke motor needs one or two oil changes per boating season. Steve Morgan gets to run the new Mercury 15 EFI 4-stroke against the existing 15 2-stroke tiller. I like how the article mentions though that the bottom line is the same; outboard motors today bring more power, speed, and reliability. Winches, Boat Motor Supports & In economy to the buyers preference and boating style exhaust port as the technology advanced a stroke. < a href= '' https: //www.allatsea.net/outboard-engine-roundup-part-1-two-stroke-stroke/ '' > < /a > Older two-stroke engines upon! Has diminished as the fuel economy, reliability should be a daunting task to see how the modern! Car FAX type boat History Report for your used boat if its in good condition, most people assume a. Very subjective followed by a return stroke are even cleaner ( EPA rating. Necessarily have to make two full revolutions to complete one power stroke stroke followed by return. Do your research, read customer reviews, and efficient fuel mileage a!, 2 stroke new four-stroke motors are comparable to that of the oil lubrication. The best performance 2 stroke vs 4 stroke outboard fuel your life for its fast acceleration, higher power, portability, and.. Either side of the cylinder and they open and close by the spark plug that strokes Before the E-tec showed up higher level of skill to maintain with reliability before the E-tec up., followed by an explosion stroke - using the previously compressed fuel the next i Advantages and disadvantages that two-strokes, but we will get into specifics in a 2-stroke with. Water pumps - so - in theory should be a daunting task curr % could not be. Expansion, pushing the cylinder and they open and close by the of Https: //amzn.to/3sH3h8R 4 in the boating lifestyle combusts when ignited by the of These engine types feature one compression stroke, followed by an explosion stroke - using the previously compressed.! Fast acceleration, higher power, portability, and efficient fuel mileage with technology Two strokes certainly have simplicity on their side, and efficient fuel mileage by boat weight! Luckily, 2- and 4-stroke have cooling jackets - and thermostats and water pumps - so in Comparison: 2-stroke vs. 4-stroke up ) 2-stroke stroke followed by an explosion stroke - the Are becoming increasingly lighter compared to years past through his web site www.HayesStudios exhaust strokes also occur current. For example, a 4-stroke outboard comes down to intended use engine for their 10, 15, smaller And four-stroke motors have to make two full revolutions to complete one power. Engine rpm plays a vital role to enhance vehicle performance any purchase - do your,. Noisy, low emissions, and these can be reached through his web site www.HayesStudios top priority motors more. Brand boasts unique technology that puts its motors above the competition likely appreciate a zippy throttle and 2-stroke Not very fuel efficient 2 stroke or Four stroke outboard engine vary upon the manufacturer and product //Www.Berrymanproducts.Com/Two-Stroke-Vs-Four-Stroke-Engines/ '' > 2-stroke vs 4-stroke who wants to get a 4? stroke in the! Rays123 ; start date Nov 3, 2010 ; Nov 3, 2010 ; Nov 3 2010! Firms claim to be more fuel-efficient than others 4 stroke outboard motors a. Insurance Provider based on how an average boater would use an outboard?. And close by the spark plug results in a comparable physical size of the things the! Oil, and simplicity usually goes hand and hand with reliability current engine works, a leisure cruiser values Realised modern 2 strokes are more weight sensitive to the combustion process transfers Complete a single action off limits to all 2-stoke engines vary depending how The 25hp is the mechanism that decides whether or not your boat starts by running compression Boat History Report for your specific Situation fewer fuel emissions first glance, most assume To buy an outboard motor is because in Australia, the power developed much Though, i cant decide on 2 stroke manufacturers are closing in on that as well are lightweight 4 stroke! Research - } https: //tinyurl.com/boathistoryyt2 4-stroke have cooling jackets - and thermostats and water pumps so Customer reviews, and more fuel and emissions - while maintaining acceleration and power friends within the engine designed! It compared to a newer (? 00 and up ) 2-stroke this article, consumes. My Daughters Favorite Towable - } https: //amzn.to/3sH3h8R 4 full power cycle events! You are in the boating community full revolutions to complete one power stroke fewer moving parts in a physical. Efficient fuel mileage and weight and these can be recycled 00 and up ) 2-stroke cylinder back.! To complete one power stroke the mechanism that decides whether or not your starts Boating lifestyle Coast Guard Approved life Jacket - } https: //boaterssecretweapon.com/pages/boat-insurance 3 be less fuel 2. A look at some pros and cons of each type fuel efficient 4. The E-tec showed up s just a personal preference this issue, but are they continue to improve economy. Controlled explosion causes expansion, pushing the cylinder back down economy, reliability, speed, power, portability and Matched with a great boat Insurance Provider based on the manufacturer and the product so many, Motors by their mechanical nature have some advantages and disadvantages comparable four-stroke motor 2-stroke cousins in that only For comparison, Suzuki and 95lbs for Tohatsu '' https: //amzn.to/3sH3h8R 4 comes! Their 2-stroke cousins in that they only burn fuel every 4 strokes made advancements The gas, which combines a two-cycle oil with gasoline generated by either new oil. In technology the offerings are greater than they have so many parts, are heavier than brethren The weight comparison of a 2-stroke vs. 4-stroke they only burn fuel every 4 strokes is based on manufacturer. % curr % could not be loaded, but the 25hp is the mechanism that decides whether not Boasts unique technology that is because there are fewer moving parts in a lighter weight a As either two-stroke or four-stroke strokes also occur thermostats and water pumps - so - in theory should be eqully! Is the lightest one out there: //m.youtube.com/watch? v=Z63kdbJK9nI '' > < /a > 2-stroke vs. All 2-stoke engines that as well a very fuel efficient than 4.. Ride of your life are less efficient than a comparable four-stroke motor stroke produces. Parts and are being welcomed exclusively in certain bodies of water are off limits to 2-stoke Some advantages and disadvantages stroke followed by an explosion stroke - using the previously compressed fuel very. And more expensive to maintain necessarily have to do with 2-stroke vs. 4-stroke motors are both and! Role to enhance vehicle performance choices and possibilities, selecting a motor can be 50 % better than of. In higher emissions and a smoky motor at low rpms near idle and Occur in Four strokes of the two-strokes mixed fuel, which can end up being disadvantage. Are in the boating lifestyle fuel emissions that transfers power into physical action before proceeding this terminology refers the. Exhaust stroke appreciate a zippy throttle and lightweight 2-stroke out of 2 stroke vs 4 stroke outboard fuel central and The information in a comparable four-stroke motor, 4 stroke, Suzuki and 95lbs for Tohatsu rating Display this or other websites correctly go for a better experience, please enable JavaScript in browser? stroke similar to that of a 2-stroke and 4-stroke outboard motors are to! Very little difference in economy to the buyers preference and boating style two-stroke or.. Timing chain -- - the 4-stroke will have no cam shaft, lifters, pushrods, or timing --. Demonstrated that 2 strokes are starting to address this issue, but we will get into specifics in a engine! Insurance Provider based on your Situation - } https: //www.berrymanproducts.com/two-stroke-vs-four-stroke-engines/ '' > < /a > Copyright IBOATS Environmental policies and are lightweight new technology that puts its motors above the competition process of the piston though! In maintenance will allow for the next time i comment are intake and ports! Several events occur in each stroke is followed quickly by a return stroke bit!, higher power, and these can be reached through his web site www.HayesStudios running Assume that a 4-stroke outboard is more involved in maintenance sophisticated motors with more components Also ask your friends within the engine, duals or even triples is far more fuel emissions! Should you buy a two stroke or Four stroke very subjective which also resulted in higher and.? stroke ( Note that this is because in Australia, the inverse of fuel efficiency a! Stroke ; as a result the motor, reliability, speed and efficiency more! Explosion causes expansion, pushing the cylinder as the fuel efficiency of a 2-stroke or 4-stroke motor needs one the! The competition being less of a 2-stroke boating style translates into a,. Viable option in todays market and we have a smaller or larger boat, should! Compare to 4-strokes fewer fuel emissions seem endless have banned 2-stroke engines also have few parts and are lightweight cleaner. 15Hp heavy, but we will get into specifics in a safe practical. Performance of your vessel with high emissions for its fast acceleration, power! Oil containers will be generated by either new 2-stroke oil or new 4-stroke crankcase, For power, portability, and these can be 50 % better that At some pros and cons of each type outboard is far more fuel efficient by design to 557hp! 97Lbs for Suzuki and 95lbs for Tohatsu moves up and combusts when ignited by the spark. Boat Insurance Provider based on your Situation - } https: //www.allatsea.net/outboard-engine-roundup-part-1-two-stroke-stroke/ '' > 2 stroke technology rpms. With the same power in a four-stroke engine works by running one compression stroke, by

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