how to make a 4 stroke scooter faster

On the other hand when derestricting the engine it should always be ensured to setup the carburetor accordingly. Kymco Super 8 - 4 stroke - more speed | 49ccScoot.com Scooter Forums The problem Im having when I crank it up and rev it up fast it cuts off and I idle it and it still doing it. Unscrew the fastening bolts located near the connect point between the exhaust pipe and the muffler. At least YOU have an understanding of the operation & function of the parts you talk about, and describe them in a manner that is easy to comprehend. Its normally more expensive to use more packages, even if the total cost of the chips is more. I have had a problem with the auto choke as the bike is hard to start and does not rev slightly higher when first started but seems ok when it warms up. Make A 50cc Scooter Go Faster - YouTube Youre right it is difficult! ROLLERS (weight: TBA) My bro the mechanic, so to speak, who grew up fixin scooters is my only source of experience in this field and i ask him bout anythin first, but when i asked him bout the rollers bein too small an affectin the gs on the plates resulting in not fully closin, he looked at me with a look as to say what $h|t is he chattin and replied with an answer that suggests that any weight rollers should automatically fully close the plates And when it was in the garage for its MOT last week I asked the mech the same Q and got the opposite answer! might have gotten ahead of myself here but just picked up a suzuki ts125x as a first geared project, as never ridden one b4, and am having trouble finding the relevant service manuals and was wondering if you could point me in the right direction? In some states, 50cc scooters that can travel over 30mph must be registered as larger class motorcycles. ;). The fastest it will go is about 58km/h and if im lucky 60km/h. Thanks for the quick reply.No other changes made other than the cdi.The air filter is stock and the main jet is 90,we tried an 80 and it made it worse. It is true that, in terms of performance, a 4-stroke scooter will gain between 1hp or 2hp. No, usually not. Samuel Hamilton has been writing since 2002. Along with that I will also explain which parts should be installed first when starting tuning a scooter and which ones need to be replaced when getting more serious. The carb restriction is a big piece of plastic that prevents the carb to open completely. 50cc scooters are built to offer limited speed and range. We're always willing to return your call if you have questions. Unscrew these bolts to remove the intake entirely. List of questions still remain unanswered tho! Please be a little more specific as to the type of modification(s) and the reason(s) why. Let us know in the comments or the forum and I will answer for sure! Too light and the engine will overrev, too heavy and the engine wont rev enough when accelerating out of corners. Hi G, Sorry only now saw your comment. I suggest to not modify the air filter or cut out parts. Throttle opening and air supply restrictions are often found on scooter carburators in order to restrict performance. What other ways do Chinese manufactures do to restrict RPM and performace. Do anybody know if that bike is restricted if so how can I disable it so I can get the top speed, Hello Daniel, I have a 2008 yamaha yq50 2st what are the best checks to see if this has been de-restricted it will do about 38 on the flat and just a touch over 40 down hill , I used to own a 2003 Gilera runner 2003 50cc and this did 50mph (on the speedo) just on the flat. Ive built many engines in past years Cars Twin turbo 300zx, Corvettes, Porsche v8 928s4 etcand crotch rockets as well as dirt bikes. Thanks in advance. 1. The variomatic ring restriction prevents the engine transmission from reaching its maximum gear ratio, thus limiting the top speed of the engine. Open up the variator system. Would really like to see it. Piaggio for example gives full warranty when derestricting the scooter through a certified vendor/repair shop. Hi, I have a friend who just unplugged the cdi( black box in battery area if the name is wrong) and just uses his kick start and it worked for him, will this work for all models or only certain ones. After numerous attempts to set the carb idol screw to bout 1,800 revs (1.8k) which is just enough to stop me mirrors vibrating and the thing takin off whilst stationary, it just keeps on fluctuating. For the more advanced tile enthusiasts, having tile nippers, tile cutters and trowels would be good. You would need to check what the default width of the belt is, and use a gauge to verify this (or better buy a new belt right away, but you still need to know the size) 3. Lexmoto, Sym, Sinnis, Direct Bikes, Keeway, Kymco etc A limiter within the carburator blocks the movement of the slider. Its been hard to get thia restricted but I am getting there. Best, Daniel, Are there washers on the needle valve that can be moved around to increase speed. Did I say funny? Again, you get no performance boost if you take out the catalyst and let unburnt fuel pollute the air that we breath, instead of getting it burned in the catalyst. I just finished re-porting the cylinder for a bit more hp. Out at half throttle anybody know why. We use cookies to ensure that we give you the best experience on our website. Air filters come in different colors, such as yellow, red or white. p.s i have a full bike licsence and also have a VFR800 slightly faster than the neos. There's a quartz on a chip like in a watch that limits the rpms to 8750 (39mph for Japan). Honda Elite 80 Specs and Review Road Sumo the bike is in pieces and needs to be rebuilt from the ground up, so i generally need to know where everything goes including wiring diagrams? Thinkin it would just be easier to put the thing on e-bay or auto-trader an buy me a 125! How to Make My 125CC Motorcycle Go Faster | It Still Runs Is driving with a derestricted CDi bad for the scooter in anyway? wedding ?) In order to comply with various speed limit laws for scooters the manufacturer needs to ensure that the scooter does not go faster than the allowed speed in the country it is sold. Does anyone know what restrictions are on the Lexmoto vienna 50cc. Will they need to do any carby adjustments, upsizing the main jet etc ? Hi Lee, This sound indeed weird. Removing the catalyst from the exhaust is much more difficult as the exhaust needs to be cut open and after removal welded together again. You can drill or poke holes into the intake with any size drill bit or awl, as it is non-rigid plastic. Be it rust, damage, lack of lubrication, or something else??? The filter is one of the cheapest components of a 125cc motorcycle but one of the most important. Hi there I have just bought myself a 2008 generic cracker 50cc been driving about on it and it is going way too slow on flats i am reaching about 25 mph tops and I really need to do something about this as I am getting left wayyy behind by other people on 50ccs is there anything i can do or get that would give me more speed even to fully top the speed out. Hi Theodor, Sorry for the late reply. Hey, I have a taotao racer and idk which wire to pull to derestrict it if you can text me@ 302-272-2012. P.S. I have just purchased a new stock sr50r carby version and Im yet to pick it up, My shop is derestricting it for me by doing the exhaust and the variator ring derestrictions as you have outlined in this great article. Hey i have a Dongfang 50cc SST (DF50SST), Its restricted and only goes a max of 31 mph after 15sec of full throttle. But I believe you should replace after every 10.000km. However, sometimes the manifold is even to small for the stock carburator. Rollers Not sure what you mech meant, but you need the right rollers for your enigne configuration. I dont have the money to pay a workshop so would appreciate a little advice. It is not limited CDI as I have run 91-92k rpm at over 50mph. I just cause traffic everywhere i go and in South Africa that is not a good thing. Thanks mate. One of the advantages of installing a performance variator on our scooter is that we can modify the performance according to our needs. Almost all China engines have the limited CDI installed. ( I noticed you mentioed Here in Germany ) And was hoping you could tell me where I can find out information regarding what is or isnt legal in German ? Thanks! If possible a torque wrench should be used when tightening the nut at 40-50nm depending on your scooter model. Hi Kimmy, Nice, this sounds good! These devices follow some kind of voodoo for the average person kind of like the old AC/Heater timer controllers about 25 years ago. ive just derestricted my sx1 and its capable of 90km the only problem is it wont pull off the line. I have tested the auto choke by wiring it to a 12v battery and it seems to work ok (gets warm and extends out by 5-10mm) but I am not sure how far it should go back in when cold do you think this has anything to do with the problem, cheers colin. I am new here. I found some circuit diagrams of CDIs on an image search and they seem pretty simple. Most stock exhaust feature a dummy pipe on the exhaust manifold whereas restricted after market exhausts have a little diameter restriction welded into the down pipe. Hamilton holds a Master of Arts in English education from the University of Pittsburgh, and a Master of Arts in composition from the University of Florida. Im an under age scooter rider from India. Count the teeth on the front cogwheel and and get 1 size bigger one (means one more tooth there). Is your airfilter clean? By good I mean these can be removed easily without spending a single penny (given the right tools). The new page will be a lot easier to navigate and community features will be much improved. Coleman Powersports JL50QT-14 49cc Moped. 1. Dont wanna make the same mistake! Please do not cut any wires or try opening the CDI. hi Daniel, the air cleaner has been cleaned I have not changed the jetting at all its the same as when it left the factory ( if I have to change the main jet do I go bigger or smaller ? ) []. And it does it very well. Daniel, I have a new Italkit 70cc cylinder kit for a Aprilia Morini engine. You should lower the weight of the rollers! Hi Adam, Great engine, lots of parts available for it. you mentioned You cant modify them yourself. I currently have the pdf manuals: 1) Suzuki TS125 Service Manual 2) Yamaha_DT200_97(4AN8) [french version], And am watching the videos @: 1) http://www.youtube.com/playlist?list=PLmezqKXGAxLu-w1_5a7uPFAfijn4dffvX, The manuals are useless but the videos, altho for the YZ125, show me the basics. I really struggle for information about my 4 stroke Yamaha aerox 2015. Get an unrestricted CDI if the scooter wont go faster, even downhill. I know i cant half go on, but youve bin a god send in helping me understand this as a greenhorn, theres just so much to take in with so little explanation other than here. 55+MPH 50cc mods - ProBoards Removing the variomatic ring is difficult as the variomatic is sitting on the crankshaft which spins when trying to unscrew the nut. Although I have zero experience with these seemingly disposable 2 wheelers Everything breaks Lol. Got any tricks? By doing this I increased the top speed with roughly 7mph to 32mph. You will need to buy a new one here. The CDI (Capacitor Discharge Ignition) is a black piece of electronics that handles the ignition process of the scooter. The scooter most likely has a variator ring installed. Larger Air Fuel Mixture + Hotter Spark = Increase Horsepower and Speed Thank you! Hey great Blog I Understand the limits and everything at the time, I just got a TaoTao Zummer 2014 50cc it has a limit at 40mph, but here in florida if you go Slow, you probably going to get run over. On the other hand the manufacturer wants to build engines that perform well in terms of acceleration. My initial worry was that the belt looked like it had too much slack, as if it had been over-stretched, but i know virtually nothing bout em. Hello all. Hello Daniel! This is possibly the thread with the worst advice on here right now, so I'll chime in. Over the next days/weeks I will explain the basics of scooter tuning, starting with simple improvements like derestrict a 50cc scooter and later going deeper into engine tuning concepts like flowing or changing the engine timings. the variator ring actually damage the variator over time. I have a 125cc honda Aero, currently it goes around 45-50. All Piaggio engines are the same, therefore if the exhaust doesnt fit, its probably for a different engine Although the Stage6 have shown some horrible quality control in the past with their China goods Anyways, get in touch with the dealer and ask for a replacement.
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