I am 54 150lbs and i will mostly be riding trails and if i feel brave enough maybe to go to the track. If you want a bike that makes the kind of power a yz125 makes and has less maintenance and doesnt go thru top end rebuilds consider a 250 4 stroke all you have to do to them is keep the chain lubed,air filter cleaned and change the oil regularlythe 2 strokes are great fun and lighter than the 4 strokes but you will need to become acquainted with your tool box and the yamaha parts guy. Fortunately, two stroke dirt bikes, like the little yz, require very little maintenance and can provide years of enjoyment as long as you follow a basic maintenance schedule. Okay so i have changed just about everything and still seems to be losing fuel pressure. We use our own and third party cookies in order to improve your experience and our service. Page 3 foreword the suzuki en1252a was designed to offer superior performance through light weight design and four stroke power.
Jun 14, 2009 im in the market for a crf450r or x, and i know from experience that a two stroke needs to be maintained more frequently than a four stroke. Dirt bike maintenance for beginners 3 most important. The 4 stroke makes more power through out the whole powerband unlike the 2 strokes that need to be ridden high in the rpms. Top 5 intimidating dirt bike maintenance jobs duration. Aussie twostroke engine invention motorbike writer. Which is the most reliable, easiest and cheapest or. Ive never owned my own bike but have been in love since i was very young dad thought they were too dangerous. I used to own a ktm 125 and i was always fouling plugs and i had friends who blew some rings on two strokes. The one time i got on his 250 2 stroke i damn near shit myself with all the power. There is no 2 stroke displacement limit for our software, for example you can have a 125, 250, 500, 700 singlecylinder and our modules will work flawlessly. It is because of the difference in the fuel used that may clog the carburetor. Which is the most reliable, easiest and cheapest or purchase and maintain. Will idle and start out strong but after a short distance will slow down.
I am looking at buying either a 125 2 stroke or a 250 4 stroke but i arent sure which to buy so need pros and cons for each please. Repair manuals for husqvarna motorcycles with technical information on repair and. I have been running about 32 ounces for 10 gallons. The new en1252a represents another major advance by suzuki in four stroke motorcycles. Bigger carburetors, higher compression ratios, altered port timings and expansion. From a 49cc racing engine, to a gp 125 engine, or a 1500 mercurial triple engine, or a 250 kart engine, racingsm software suits all. With the aid of cookies we analyze the typical use pattern of visitors to the website.
While twostroke engines run more simplistically, their need for maintenance is usually. Page 6 107c periodic maintenance schedule 2003 125 200 sxmxcexc 1st service after after after 10 hours. Let me know what comparison you guys want to see next. Hey reddit im looking to buy a mx bike myself and was hoping i could get some feed back from you guys and a little help. This means that a twostroke 125 cc engine is the same as a 4stroke 250 cc. Mercury 2stroke outboard boat motor service manuals pdf.
You also need to replace reeds every so often and clean the pv. Maintenance cost and unexpected failures can be drastically reduced in low speed diesel engines using vibroacoustic condition. By taking the first few miles gentile untill its warmed up you will be saving lots of maintinance people say leave it to idle but i can leave my nsr to idle for 510 minutes an. Paul dempsey, the author, is a master mechanic and has written more than 20 technical books, so you know the information is genuine. However, auction123 disclaims any warranty as to the accuracy or to the. Im in the market for a crf450r or x, and i know from experience that a two stroke needs to be maintained more frequently than a four 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 the track or trail.
Here goes have a 2005 trophy with a 125hp 2 stroke outboard motor. 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. That is why they limit the red line to a very curiously low 5,250rpm. Keep your bikes clean and up to date on maintenance, and they will never. I love working on engines and have no problem doing maintenance. Choosing between a 125 2 stroke or 250 4 stroke motosport. 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. Mercury 2 stroke outboard boat motor service manuals are available for immediate download. This guide covers the routine maintenance needs of the 2stroke dirt bike to help you move quickly and efficiently through the process so you.
Sim yamaha is a usa yamaha outboard motor and outboard motor parts dealer. While 2 strokes can need a little more major work more often, that work is very simple to do compared to a 4 stroke. I have an uncle that has one, and its been a good engine for him. There are some jumps on some tracks that are tough to get over on the 125. Not sure if the cbr uses tappets, but its probably cheaper on the 2 stroke if it doesnt. Average riders should replace their piston and rings every 20 hours on. Mercury outboard service manual free download pdf boat. How to clean your dirtbike and basic maintenance yz125. Why do 2 stroke engines require more maintenance than 4. View and download mercury 125 operation and maintenance manual online.
When you get older and maybe put on a few more pounds, youll have the skills to really work a 250. First, dont misunderstand and think because the 250 is greater in size than 125 that the 250 4 stroke is more powerful than the 125 2 stroke. Two stroke engine repair and maintenance kindle edition by dempsey, paul. A lightweight chassis teams up with the most competitive 125 cc 2stroke engine. I usually dont remove any links, once i put them up.
There is no 2stroke displacement limit for our software, for example you can have a 125, 250, 500, 700 singlecylinder and our modules will work flawlessly. Ive been using cheap 2 stroke oil all my life and finally decided to buy some expensive stuff. Maintenance of yz125 or 2strokes in general the dirt. If you find a web site with parts or shop manuals on it let me know so i can list it here for everyone. Explore 396 listings for 125 2 stroke for sale at best prices. Minor release veranderung einer software, mit dem ziel mehrere fehler zu. This must meet the requirements of the en 228 standard or equivalent, and. 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. That motor scared the bejeepers out of me, too darn many things to go wrong, supercharger, drive by wire solenoids and actuators, ridiculous maintenance schedule, required 600 buck dealer maintenance in the first year, just to maintain the warranty. Tm 2 stroke 100, tm 2 stroke 144, tm 2 stroke 125, tm 2 stroke 250 2012, tm 2 stroke 300 2012, 2012 tm 85 mx, 2012 tm.
Full 2 stroke rebuild time lapse 2007 yamaha yz125 win this dirt bike. Up for sale is a truly rare find a lowhour 2007 cr125r with all the goodies. 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. In fact, 2 stroke bikes with the same engine displacement typically have significantly more power than their 4 stroke counterpart. Twostroke engine repair and maintenance, dempsey, paul. Emmisions, fuel efficiency and cooling requirements will really define its chance of success. Says a 2 stroke engine that has been stationary for the substantial time as this one has may not be mixing the oil and gas properly and could cause severe engine damage if i try to keep testing with wot. Mercury 125 two stroke 2001 walleye message central. Everything2stroke forum since 2004 a forum community dedicated to all 2 stroke engine vehicle owners and enthusiasts. If you see any abnormalities like chips or fraying replace the reed pedals. Hit something in the water took a big chunk out of prop.
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. You will also need to repack your muffler on a more regular basis. Lets say a company is producing a 20hp 125,they build a prototype or 2 and its got 20hp, then go into production they check the bikes coming off the production line and they are producing 19. This engine has power steering and a electrictype starter. A two stroke cylinder head only has two parts, so no big deal to go to a vblock and have two cylinder heads instead of one. Service and maintenance manual 2 stroke 50cc 1e40qmb. Come join the discussion about your favorite engines performance, classifieds, troubleshooting, maintenance, and more. Liquidcooled singlecylinder two stroke engine with intake and exhaust control piston displacement 124. Looking for a digital copy shop manual for 2001 yamaha yz 125. Youll need to inspect the outer corners of the reed petals located inside of the reed cage. Cyclepedia is an officially licensed and authorized distributor of legacy ktm manuals. If you have a repair manual that you dont see on the above list then please donate your manual to help the husqvarna community. This must meet the requirements of the en 228 standard or.
Mercury 2stroke outboard boat motor service manuals pdf download. The recommended fuel is specified in the owners manual. Routine motocross bike maintenance tips 2 stroke motosport. Here are some basics to keep your two stroke alive. How to care for a yamaha yz 125 by chris gilliland. Wanting to make sure proper maintenance would be performed, i took it to the.
The only thing i noticed, which may or may not matter to you, is that when pulling the kids in a tube there is a dead spot right at the point where it transitions from 2 to 4 cylinders. This 125 horsepower mercury outboard, manufactured in 2000, is a saltwater model. If you have a dirty old paper copy of this manual or a pdf copy of this manual on your computer and it crashed we can help. Boat motor repair manuals since 1998, iboats is the most trusted water lifestyle online store for boat parts and accessories, boats for sale, and forums. As found on previous models, filter maintenance is quick and easy and does not require tools a standard, original feature from ktm. These lastgeneration aluminum frame cr 2 smokers and the best and last 2 strokes honda made and the 07s represent the absolute pinnacle of honda 2 stroke performance and reliability. After reading this book twice, i walked away with much more than basic 2 stroke maintenance abilities. I just bought a 1988 bayliner bass with a force 125 on it. Sim yamaha carries yamaha oem discounted engine parts and yamaha maintenance parts and accessories for yamaha outboard motors. I do not host most of these, they are just links to other web sites.
Customer service is available by phone, live chat, and email. The cyclepedia ktm motorcycle repair manual library is. With this howto guide, you can win the battle with the temperamental two stroke engine. Gasoline has a tendency to deteriorate over time, which can clog the carburetors fuel. Mercury 125 operation and maintenance manual pdf download. Twostroke engine repair and maintenance paul dempsey. As i havent ridden my bike in over a week i thought id go out for a ride whilst the weather was good however, the bike decided to play up a little. Ok which dirt bike needs more maintenance, two or four stroke.
After restarting boat to make it to shore which is less than 1 2 mile away noticed had no forward but had reverse. It is very difficult for us to get our hands on repair manuals. This expansion chamber is not the product of simple correlations as for other products that abound on the web, but an automatic design created by mota which is a full wave action 2 stroke engine simulator. Repair manuals for husqvarna motorcycles husqvarna outlet. 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. Use features like bookmarks, note taking and highlighting while reading two stroke engine repair and maintenance. I have never owned a four stroke, but i assume that they require less maintenance, i mean first of all you dont have to mix the gas, and you.
I was just curious what the best fuel to 2 stroke oil ratio is for these motors. Jan 18, 2009 2 stroke maintenance for road bikes like the rs and definitely nsr isnt more expensive than a 4 stroke. The things you learn on the 125 will stick with you forever. Im keeping my nsr for a fair while and by the grace of god it refuses to pull through the power band untill its warmed up a little. Waarrrmmm it uuupppppp before going banana sandwich with it. I have a 1999 robalo with 1999 125 hp mercury outboard. Did valves and springs last season at 125 hrs as maintenance. All of the advantages of a 4stroke with the power of a 2stroke. View online or download tm racing tm 2 stroke 125 user and maintenance manual. Predictive maintenance system for 2 stroke diesel engines.
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