While im only a software engineer, i am also relatively mechanically inclined and wanted to wrap my mind around basic maintenance for my 2 stroke equipment. A forum community dedicated to ford fseries owners and enthusiasts with a power stroke diesel engine. Nov 16, 2009 while im only a software engineer, i am also relatively mechanically inclined and wanted to wrap my mind around basic maintenance for my 2 stroke equipment i. Basic small engine repair introduction to 2cycle engine.
Learn the theory and demonstrate the practice of servicing small engines activity service a 2 stroke. This guide covers the routine maintenance needs of the 2stroke dirt bike to help you move quickly and efficiently through the process so you can get out of the garage and back on. Basic engine reporting automatic software and flash updates for 1 year. Its an introduction to small engines and covers many of the things that apply to 2 stroke engines which will be covered on this page. Basic mechanics maintenance training course tpc training. Looking at a 2002 150 hp yamaha 2stroke w488 hours i think that means it has lots of life left but got me to wondering what expected max hours would be. Since the valves on a two stroke are static, meaning that they do not move. Two stroke engine and exhaust design software north. A myriad of different aftermarket accessories is available for you to custom tune your bike to better suit your needs.
To get the most from your equipment, its important to understand the fundamental design elements of both 2cycle and 4cycle engines. View this video of rod mckenzie demonstrating how to service a 2 stroke motor 2. This fueloil mixture can be purchased as such, or you can mix it yourself. Basic maintenance for 2 strokes pick up an inductivetriggered engine hour meter for it, which you can use to track maintenance, top end life, and things like that. This page is, for now, not much more than a collection of notes. However, when sprayed as a mist and mixed with air, it is quite explosive. Enthusiasts, tuners, mechanics, gp, drag racing, mx, enduro. Numbers of cylinders and spark plugs is irrelevant. With a get ecu, it is adjustable with the software, not the phone app. At the top of this stroke the exhaust valve is closed.
The 2 stroke maintenance course is designed for technicians. Sim yamaha carries yamaha oem discounted engine parts and yamaha maintenance parts and accessories for yamaha outboard motors. In the advent of the internal combustion engine, two stroke engines are one of the most simple. Mota software, 2 stroke engine simulation software, 2 stroke exhaust design. Learning to maintain outboards at yamaha marine service school rich chenet in other labs, we changed gearcase lube and pressuretested the case, checked valve clearance, changed the fuel filter, checked powertrim fluid level, set the float level in a. Mota for windows slide show of features millions of tuning variations possible. Purchase the porting tools you need at our online store. If you havent done so, you should read the basic small engine repair page. Find out more about mercurys distribution partners, sponsorship applications, and our global locations. As defined in the engmod 2t software suite, sta provides an indication of the effective. Sim yamaha is a usa yamaha outboard motor and outboard motor parts dealer. And with only three basic moving parts, twostrokes are the simplest and least expensive. Calculates port heights from durations, or durations from port heights. Minor port modifications would include basic tasks such as removing casting flash, slightly.
Their basic programs developed for the fourstroke engines became a best practice. They power lawn mowers, tillers, cultivators, trimmers, edgers, snowblowers, chain saws, pumps, generators, air compressors. Nov 05, 2015 this stepbystep guide takes you through a service of a small 2 stroke outboard. Everything you need to know about the twostroke cylinder. Read my expansion chamber theory page to get a full understanding of how expansion chambers work and click here to read more of the details of this spreadsheet calculator. This stepbystep guide takes you through a service of a small 2 stroke outboard. Check the manufacturers recommendations for the specific ratio and grade of oil and fuel to be mixed. Storage and winterization learn how to take care of your engine during the offseason.
Students will learn 4stroke2stroke engine operation, maintenance procedures, diagnostics and repair. May 25, 2012 seems like this has already been answered for you. The worlds leading 2stroke engine simulation software for 3. Contains links to relevant man diesel and turbo twostroke technical papers. Routine motocross bike maintenance tips 2 stroke motosport. This guide covers the routine maintenance needs of the 2stroke dirt. Topics include the fueloil mixture for twostroke engines and performing other lubrication services. But as stated above if you keep the 4 strokes in good maitnence with fresh oiloil filter and air filter it will. Neglecting the spark plug maintenance eventually leads to difficult starting and poor performance. Since the valves on a two stroke are static, meaning that they do not move, the inlet and the exhaust are timed by the position. Basic 2 stroke tuning a myriad ofdifferent aftermarket accessories is available for you to custom tune your biketo better suit your needs. How to service a 2stroke outboard engine practical boat owner. The most common mistake is to choose the wrong combination of engine components, making the engine run worse than stock.
The information used in the programs calculations was taken from the books the basic design of the two stroke engine and the book design and simulation of two stroke engines. The brp utility and diagnostic software for rotax fuelinjected aircraft. The fuel tank stores fuel in preparation for mixing by the carburetor and use by the engine. Fork and shock oil is not a regular interval maintenance type of thing like air filters and trans fluid. Blair of queens university belfast, and published by the society of automotive engineers. Learning to maintain outboards at yamaha marine service school rich chenet in other labs, we changed gearcase lube and pressuretested the case, checked valve clearance, changed the fuel filter, checked powertrim fluid level, set the float level in a carburetor, and changed a waterpump impeller. The software in question the inexpensive stuff is great for someone who just does not have the math skills to wade through what seem to be a text book of complex formulas. My professional 2 stroke expansion chamber design software is more sophisticated than other programs that only use a few basic formulas. A two stroke engine should use a mix of gasoline and two stroke engine oil in the fuel tank, so if kept unused the mix would get stalesolid whe. Learn the importance of oils and lubricants in basic engine maintenance. Twostroke waveaction engine simulation motion software.
Service and maintenance manual 2 stroke 50cc 1e40qmb mortch international ltd 2. This must meet the requirements of the en 228 standard or. But because of the limited worldwide activity in twostroke engine development, program sales were limited and further development was curtailed. Customer service is available by phone, live chat, and email. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more. The basic level applies to 2stroke carbureted seadoos and sportboats. How do we determine how to break in and maintain that very significant investment.
Hvac hydraulic inventor math and physics matlab mechatronics piping plumbing power plants pumps and compressors safety small engine software. Its an introduction to small engines and covers many of the things that apply to 2stroke engines which will be covered on this page. Software maintenance in software engineering is the modification of a software product after. Jun 14, 2009 true a 2 stroke does require more maintenance and true a 4 stroke does have more moving parts but as stated previously a 2 stroke is working twice as hard, as well as head rebuilds quite often you will also be looking at engine rebuilds every 2 years or so if you wax it hard, you also need to get the two stroke oil mix right or your liable to seizure whereas my four stroke hasnt had a service. In the first year, students will learn the components and systems that make up a small engine. After reading this book twice, i walked away with much more than basic 2 stroke maintenance abilities. Two stroke tuners handbook 2 another mistake commonly made, sometimes even by those who have enjoyed some success in modifying two stroke engines, is to believe in a kind of mechanistic magic. Fourcycle engines have nine basic moving parts, including the crankshaft, camshaft, a connecting rod, valves, lifters and the piston itself. Determine the level of porting you wish to achieve before you start cutting or grinding. Youll need to inspect the outer corners of the reed petals located inside of the reed cage. Taking care of the clutch cable see above is the first place to start.
The recommended fuel is specified in the owners manual. Interpreting the service manual can be overwhelming if youre new to wrenching. Ok, you have just purchased a brand new or maybe its brand new to you 2 cycle outboard. The clutch in a 4 stroke does not wear out as fast as the 2 stroke clutch however that doesnt mean you can let. There was a triple rd running in wera back in the late 90s, but unfortunately, i dont know whose it was. The following article will provide some general guidelines on the care and maintenance of your new or almost new baby. Basic small engine repair introduction to 2cycle engine repair. To get the most from your equipment, its important to understand the fundamental design elements of both 2 cycle and 4cycle engines. Developed by pedro, with more than 20 000 lines of code, all the knowhow applied to software comes from us and also a lot from the legendary portuguese 2 stroke tuner lufo racing, this software is directed for all 2 stroke.
Two stroke motorcycles arent going anywhere and to help keep them around a little longer we want to show you our top 5 two stroke motorcycle tools we think every 2 stroker should have in. Explains the basic elements of industrial machines, as well as common measurement tools used to monitor and. The most common mistake is to choose the wrongcombination of engine components, making the engine run worse than stock. Heres how to make a two stroke engine fueloil mixture. Regular routine maintenance is an important part of caring for your lawnmower. If you see any abnormalities like chips or fraying replace the reed pedals.
Check and service 2 and 4 stroke small engines wikieducator. Aug 04, 2012 basic outboard motor maintenance 2 stroke part 2 3. By regularly inspecting for and repairing wear and damage, you will improve your lawn mowers performance and extend its life. Explains principles of operation for simple machines, such as the lever, inclined plane, wheel and axle, pulley, and screw. It is because of the difference in the fuel used that may clog the carburetor. Why do 2 stroke engines require more maintenance than 4. If you have questions or suggestions for this page, feel free to email me. Bigger carburetors, higher compression ratios, altered port timings and expansion. Basic 2 stroke tuning changing the power band of your dirt bike engine is simple when you know the basics. Specific to 2 stroke bikes, reed maintenance becomes evident when the bike is hard to start or the exhaust opening cakes up with carbon deposits. Basic outboard motor service 2 stroke engines part 33. Invest in a factory owners manual so you have a basic understanding of how your engine works.
Maintenance needs to be performed regularly to keep your bike operating safely and in top condition. The only necessary moving parts are the crank shaft, the piston, and a few other odds and ends. Two stroke engines require that oil be mixed with the gasoline to lubricate internal parts. Dec 24, 2010 my parents are trying to talk me out of a 2 stroke because someone told them youre always fixing them. After reading this book twice, i walked away with much more than basic 2. The clutch in a 4stroke does not wear out as fast as the 2stroke clutch however that doesnt mean you can let this one slip by as some riders, inclduing you, may ride the clutch hard. In a vented gas can used only for mixing, pour a specified amount and type of gasoline. True a 2 stroke does require more maintenance and true a 4 stroke does have more moving parts but as stated previously a 2 stroke is working twice as hard, as well as head rebuilds quite often you will also be looking at engine rebuilds every 2 years or so if you wax it hard, you also need to get the two stroke oil mix right or your liable to seizure whereas my four stroke hasnt had a service. Learning to maintain outboards at yamaha marine service. Storage and winterization learn how to take care of your engine during the.
Small engine repair courses typically cover the tools and maintenance strategies required for 2stroke and 4stroke engines. Fork and shock oil is not a regular interval maintenance type of. Two stroke tuners handbook 2 another mistake commonly made, sometimes even by those who have enjoyed some success in modifying twostroke engines, is to believe in a kind of mechanistic magic. The idea is to get an education in cause and effect. But as stated above if you keep the 4 strokes in good maitnence with fresh oiloil filter and air filter it will last you quite awhile. If anyone on this board knows and has contact info, it might speed up. There are quite a few differences in the operation of 2 stroke engines compared to 4 stroke engines which were covered on the basic small engine repair page. Mar 27, 2017 learning to maintain outboards at yamaha marine service school rich chenet in other labs, we changed gearcase lube and pressuretested the case, checked valve clearance, changed the fuel filter, checked powertrim fluid level, set the float level in a carburetor, and changed a waterpump impeller. Twostroke engine repair and maintenance, dempsey, paul. The above is the cycle of operation of one cylinder of a 4stroke engine.
North american twostrokes general two stroke discussion two stroke engine and exhaust design software this is the place to talk about anything related to two stroke road race bikes. This stepbystep guide takes you through a service of a small 2stroke outboard. We now have a simple 2 stroke expansion chamber design program. How to service a 2stroke outboard engine practical boat. Ok which dirt bike needs more maintenance, two or four stroke.
Create our own video starring you that demonstrates how to service. Includes candoopro diagnostic box yamaha diagnostic cable usb cable software download software updates automatic software and flash updates license unlimited number of vehicles annual maintenance first year. Basic maintenance for 2strokes pick up an inductivetriggered engine hour meter for it, which you can use to track maintenance, top end life, and things like that. Assign fixed relationships between transfers and exhaust port. Developed by pedro, with more than 20 000 lines of code, all the knowhow applied to software comes from us and also a lot from the legendary portuguese 2stroke tuner lufo racing, this software is directed for all 2stroke. North american twostrokes general twostroke discussion. This basic mechanics, mechanical maintenance, training course covers force and motion, work and energy, and fluid mechanics as applied in industrial maintenance. While im only a software engineer, i am also relatively mechanically inclined and wanted to wrap my mind around basic maintenance for my 2 stroke equipment i.