how to make a 4 stroke scooter faster

My parents got me a scooter just because Im not licensed to ride motorbikes. The airbox is relatively small and can be tuned but it is not necessary if you keep your engine stock and just want to derestrict it! Easiest is to swap the cylinder with a racing kit, like the Stage6 Sport Pro! The fastest it will go is about 58km/h and if im lucky 60km/h. Alter the variator system by removing the restricting washer underneath the front pulley wheel. also how would I go about finding an unrestricted CDI? Hi I just bougt an Honda NSC50R in Norway , it is limited to go in max speed 45 kmh i have ordered a CDI /Turbo kit TK-TJ015-UR1VN Have i ordered the right part ? That will limit your top speed. Compare the pressure with the max cold PSI number written on the sidewall of the tire. Do you have any tips for me on how to derestrict it and/or improve performance. Will try the recommendations you suggest an be back in touch soon, hopefully with news that ive just come outa hospital coz youve solved all my problems an ive crashed the frackin thing into a lampost on take off ;), [] like, e.g. By good I mean these can be removed easily without spending a single penny (given the right tools). Altogether I recommend to get another (newer) scooter model as tuning parts for these old Hondas are very expensive if you can find any at all :-/. Is the CDI the only restriction i should worry about? If its whiteish, its too lean and needs a bigger jet! no part changed or anything. Time to go on the hunt! Which parts are necessary to buy to tune up the engine? It can be removed when disassembling the silencer. wedding ?) Thanks! A 4-stroke engine works as follows: The piston goes down in the combustion chamber, the intake valve opens, and the air/fuel mixture enters. There really isnt much else out there, than the described restrictions! The exception to this rule are scooters that have developed proprietary parts (for example, Honda). Do you know what engine it has? I am new here. The local dealer is really uncooperative and refuses to provide any info on the restriction itself (i.e. Hello. Get an unrestricted CDI if the scooter wont go faster, even downhill. Thank you. Have you had a look to see if there is a restricting collar on the front pulleys? Does anyone know what restrictions there are on a Yamaha YN 50 E Neos ? This is done by pressing down on the pedal as hard as you can while the scooter is still moving. What should I check/change/adjust next? You should lower the weight of the rollers! 3. It is simple to operate with its easy electric . what manifold do i need to buy? If it needs a CDI then please tell me which one to get and where from. Once the variomatic nut is removed simply take out the ring that is sitting in between the two pulleys. I also dont understand your full question. ive just derestricted my sx1 and its capable of 90km the only problem is it wont pull off the line. I see that you dont update your page too often. Welding a washer onto the hole should do the job. This can be accomplished by either drilling holes into the air intake (located above the variator case) or by removing the intake altogether. I found some circuit diagrams of CDIs on an image search and they seem pretty simple. For the more advanced tile enthusiasts, having tile nippers, tile cutters and trowels would be good. Help just had clutch to bits on piaggio nr3 now engine cuts. Hi Daniel, Thanks for the interesting article. Is there any chance that the cdi is running a weird program? If you want a good balance of performance and sound muffling, you would likely pick a more thickly packed muffler. Removing restrictions and riding a scooter without having a valid drivers license is illegal. This modification is more often done for aesthetics and sound than for performance, but if you are looking to increase a little the performance of the bike without modifying anything mechanically and also give another look to your scooter, this is your option. This is why statements about higher top []. It is always recommended to play with 1 gram at most in the weights of our variator so that it does not change drastically the operation of our motorcycle. There are heavy fines and you might loose your license when getting caught or involved in an accident! so it wont join as the holes for the bolts need to be moved round? http://www.mopo.fi/ajoneuvot.php?ajn=21&merkki=3, http://www.youtube.com/watch?v=vP7OnJZGcCc, http://www.jincheng-global.com/zdw3.asp?prmo=JC50QT-20&tyno=A&ptty=A02, How To Maintain A Scooter | TuningMatters.com, http://www.youtube.com/playlist?list=PLmezqKXGAxLu-w1_5a7uPFAfijn4dffvX, , How Fast Is 50cc and 125cc? Am lookin into buyin an unrestricted one at the mo, seems a lot of people buyin em on eBay an buyin the wrong ones. Best Overall. The following restrictions can be found on pretty much every scooter sold nowadays and can be split into two categories: Whats meant by added parts? Not sure if this cost-per-part-to-solder issue is true for simpler devices, though. Best get in touch with your manufacturer or your local scooter shop and ask them if derestricting your engine has an affect on your warranty. Increase the air flow to the engine. There are some bigger engine scooters with restrictions but it is very untypical for them to be restricted. New spark plug wouldnt hurt neither! But did you know that there is a tool that allows you to create new posts using existing content (from article directories or other blogs from your niche)? It is at this point where most scooters waste the most power, as it does not usually take advantage of all the torque generated by the engine of our scooter. Drill holes anywhere on outer wall of the intake. To stroke an engine, a tuner relocates the big-end bearing further outboard on the crank halves. My moped is from 2012 please let me know as soon as possible. Anyone have a 2014 Piaggio Fly 50 4T that is derestricted? Im now wondering if it could be the pulley making this noise due to some kind of interference. Install lighter ones and acceleration will be fine again. Replacement mufflers are universal depending on how large your scooter's engine is, not necessarily on the make and model of the scooter. Out at half throttle anybody know why. 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. That is, if we do more urban stretches where what we want is more acceleration, we can equip the variator with lower weights so that it revs more and gives us more power at low speeds. If there is no direction you can point me in then maybe you know of other bikes that match the specs of the TS so I can look their manuals and vids up instead? the variomatic ring grinds into the aluminium of the variomatic over time causing it to break, or the exhaust restrictions increasing the overall of the engine temperature by blocking the gas flow. Frustrated, I left the damn thing alone for a few days, then thinking that the restriction may have something to do with the revs,i remembered a video id downloaded off youTube that mentioned a pink wire, and after hours of collaborative research into it, i was under the assumption that as my CDI was 6 pin with 6 wires, one being predominantly white with a pink stripe, and being located at the pin that leads from the CDI to the stator trigger pulse, that temporarily cutting this wire would fool the bike into thinking it is standing still, and allow you to rev the bike as high as you want!, alas guess what happened when i cut it ;) thats right absolutely JACK $H|T, it wouldnt even start, so reattached wire an starts fine as usual. . A derestricted CDI is not a problem at all. A 50cc two stroke that can get a minimum of 40-45 mph with minimum work (ie, simple derestricting). Hope these 50cc scooter upgrades help you make your scooter faster. as is the carb. I know that writing articles is boring and time consuming. Hi, No, usually the stock mainjet is ok for derestricting. Removing restrictions and riding a scooter without having the appropriate drivers license is illegal. Assuming i dont derestrict anything else. Or will it still make a difference to change it with the stock exhaust. Thanks, Hi Arrie, Have you gone through the article and checked which of the restrictions apply to your model? This is often contradictory to the speed limit requirement as fast accelerating scooters also reach high top speeds. His work has appeared in The Penn, The Antithesis, New Growth Arts Review" and Deek magazine. I have a 2013 Honda Ruckus and I was wondering if derestricting it is possible and is it worth it? Complicating the issue further still are derestrictions and modifications. Im certain it has to do with the mainjet. No risk for engine damage or anything! Hi, Im Daniel I write this blog and love scooters! The Ruckus is a dope scooter, tho the engine is unfortunately not so great You can look for the general restrictions like carburator and variator ring and remove it, tho the most people go fo an engine swap and use a GY6 150cc china engine. Can you double check with them? Thanks shaun. It does not affect speed or performance. I just cause traffic everywhere i go and in South Africa that is not a good thing. 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. Listen, thanks man anyway. many ways to do that. After doing the above jobs i still noticed no further top end addition, although i did solve the bogging issue through the acceleration range. The intake is attached to the scooter by two or three bolts, usually with two attached to the underside of the rear wheel well and one attached to the variator case. Hi I have a 50cc derbi pro 2011, i have taken off the restrictor plate, do you know if you are supposed to raise the jet or lower the jet? It wont even get up hills, yet alone drive at dangerous speeds! If you fail to do this you are wasting speed and horse power. Thanks Shaun. Tho, even without the restriction, those new 4st engines are made for fuel efficiency rather than high speeds, so dont expect too much :-/, Hi I just bought a 2010 kymco super 8 50 2t I enjoy it but it tops out at 25mph is there any advice you could give me to increase the mph to at least 40. i have a gilera ice 50, ive recently bought a stage 6 exhaustm which should have fit on my ped, but the mainfold where i join them together are 90 degrees out? How to recalibrate a speedometer after a How to Derestrict a 4-Stroke 50CC Scooter, How to increase the speed of a puch moped, How to Change the Exhaust on a 50CC Scooter, How to Replace a Corsa Instrument Cluster. All that happens will be, that you simply break it. There is only loss of pollution to air. This also means that all installed and replaced parts are yours. The scooter most likely has a variator ring installed. There are some other exhaust restrictions. Alternatively you can attach the exhaust of the same scooter model without catalyst (Minarelli and Piaggio engines have usually equivalent models with a non-cat exhaust). Are there other easy mods that would give me the same results? You can also find variator rings in some engines! I meant pointless. To emphasize that with a performance variator we are not going to increase the horsepower of the bike, but we will modify the power curve and get all the horses of the scooter to reach our wheel. nothing illegal in racing besides the unburnt fuel fume coming out the pipe smells terrific and thats what were after. Have a look on eBay for the proper blocking tools available for your scooter. Alter the variator system by removing the restricting washer underneath the front pulley wheel. Many thanks! 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. it would explain in some manner why there is absolutely on acceleration to speak of when taking off on the damn thing, compared to other niftys Ive rode that take off as fast as a bra in a strip club. It can be divided into three groups: This can be covered quickly as I only know about the catalyst applied to exhausts. 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? We empower you to efficiently solve each new challenge and make your life better and easier. You will then remove each pulley wheel by unscrewing the centre bolt holding them in place. The new page will be a lot easier to navigate and community features will be much improved. Loosen the bolt and pull the pin and you can remove the kickstart from the scooter. are there other black boxes? Although I have zero experience with these seemingly disposable 2 wheelers Everything breaks Lol. I would go with 1. and buy an unrestricted CDI. Hi Daniel, I have bought a sachs sx-1 which was standard but broken so I have fitted a new 70cc cylinder and cylinder head, new Leo Vince exhaust (with restrictor removed) and unrestricted new C D I. It also has a hydraulic caliper at the front that chomps down on a 200 mm disc. Hi Daniel. Removing the glue will take forever and I think it is unlikely that you are able to free the circuit without breaking it. Scooter mechanic here. Would love to get more and more tips from you! I have ordered new cdi (602882M083), changed it, but without any change, the same speed -max25/km/h. On a stock carb (12mm) it should be about 60-65 for a stock engine with a sport exhaust, unless you have modified anything else! Fast vehicles are dangerous. Open up the variator system, remove the front pulley wheel and pull the washer off of the front pulley rod by hand. The carburator needs to be adjusted according to the amount of air it is processing. 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 suggest to not modify the air filter or cut out parts. Hi Nigel, Its actually the other way around. This lead me to the conclusion that the thing was restricted in some other manor, so before coming here i trawled the net and found info on carb jet cleaning, jet needle adjustment and air/fuel calibration among others. 5. - Request assistance from the technical team, - Terms and conditions of sale and returns -. 3. Open up the variator system, remove the front pulley wheel and pull the washer off of the front pulley rod by hand. any info on this would be helpfull, i am mechanically minded. One of the advantages of installing a performance variator on our scooter is that we can modify the performance according to our needs. I would greatly appreciate your help if you know anything about this topic. Have you done it? Open up the variator system. You will find a lot of information on those on my site :), I have found that on Tao Tao Scooters and Roketa, as well as most other Chinese scooters too; that removing the black plastic plate between the cylinder head and intake manifold greatly increases the power of the scooter, that combined with removing the air box, blocking off the emissions system with a vacuum cap on the intake manifold, replacing the main jet with a #95 jet and installing a UNI Filter is a cheap and extremely effective way of getting tons more power out of your engine. Is your airfilter clean? Basically, tiles are placed on a surface and the spacing in between tiles is filled using a powder called grout. There's a quartz on a chip like in a watch that limits the rpms to 8750 (39mph for Japan). Step 2 Open up the variator system. BELT (default width = TBA)(verified width = TBA) never thought about it being too narrow?! When i drive on flat surface my moped comes up to 50 KPH and stops there, it sounds like something is stopping the rev because it sounds like drrrrrrr (bad impression but yeah), it sounds like it wants to go faster. Continutul cosului. When the catalyst exhaust is being replaced this hose should be removed and the hole in the engine block closed. The variomatic ring restriction prevents the engine transmission from reaching its maximum gear ratio, thus limiting the top speed of the engine. If you are looking to enhance your scooter enter our store and find all the components of the highest quality for your model at the best price. Coleman Powersports JL50QT-14 49cc Moped. Have you tried going downhill? This should do the job! I can just be sittin on it not touchin a thing an the rev needle will raise to 2k 2.2k then drop either back to or below 1.8k and bounce about like this almost constantly, but only while idol. However, this will not make your scooter faster, but only allow it to rev higher. Any advice or info on what I should do to increase my scooters performance especially for the annoying hills would be appreciated. 1. It is a NH 125 Honda engine. 5. make your Scooter Faster by Inducing a Turbo There are a few tricks you can try to make your scooter go faster. A catalyst has to operate at a high temperature to perform in its intended way. Too light and the engine will overrev, too heavy and the engine wont rev enough when accelerating out of corners. The exact process of installing aftermarket pulleys depends on the size and type of pulleys you purchase, but for any scooter it will require you to remove the faceplate of the variator case which is held on by six bolts. Your scooter is electronically limited through the cdi. Thinkin it would just be easier to put the thing on e-bay or auto-trader an buy me a 125! Sorry was mistake in cdi code, I have ordered cdi ducati 639978. Following your guide I have now removed the variator ring, and looked for the exhaust restriction on the Leo Vince Touring, but it was not present. Ive got a 1984 honda nh125 / 1999 af28 dio you will have to see it to get what I mean but the problem is for me that it is only getting up to 1/2 the speed that the specks say it can reach and thats after having a few aftermarket parts can you help please. And since my place doesnt have enough tuners who can get me increased performance, Im depending on online help to get more power out of my scooter. Is it accelerating quickly, or super slow? Hi Dan, What do you know about restrictions on SYM jets port 50x 2013, A catalyst has to operate at a high temperature to perform in its intended way. Windscherm Origineel Hoog Aprilia SR Motard 50 / Piaggio Typhoon II 50 2018 Origineel 1B005934 (+ Montageset) Accessori: PARABREZZA CON ATTACCHI GIVI PER PIAGGIO TYPHOON 50 125 2011 2012 288A + A5602A. My question is my bike seems like it loses power or acceleration. Heck, it would probably be easy to make a near-universal one given the network theory of economics/engineering that says that over 90% of designs are using at most 10% of components and design choices. The little clip you can find on the needle is for adjusting the fuel / air ratio. In theory, it would be possible to black-box reverse-engineer a clone of CDIs based on oscilloscope traces. I noticed that the variator roller weights are pretty . p.s i have a full bike licsence and also have a VFR800 slightly faster than the neos. I want more accelerationI weigh about 185lbs Can you please give me your thoughts. Its given to me as a company vehicle, so i only want to derestrict it, because quite honestly the lack of performance scares me more than my Ninja, and its definitely got more go in it than Honda is giving me from the factory. Hi! Trikes. So you took the clutch a part and now it only goes half speed? Derestricting a scooter makes it faster and therefore more dangerous to ride. For example some stock exhausts use a very long exhaust manifold that decreases the gas flow and therefore resulting in reduced performance. TBH, if I was to do this properly, Id use a PLL with the appropriate timing diagrams to design a CDI. Hope this helps! from Piaggio). Hi ,daniel ,I have a yamaha neos yn50 2 stroke,I have put a q-tre sports exhaust on will I have to put a different jet size on carb the one I have on is size 60. size 60 should be ok. Maybe size 65 check the spark plug! When reassembling the variomatic the crankshaft nut should be secured using Loctite (medium) or a similar threadlocking adhesive. Will they need to do any carby adjustments, upsizing the main jet etc ? Alternatively you can attach the exhaust of the same scooter model without catalyst (Minarelli and Piaggio engines have usually equivalent models with a non-cat exhaust). It will increase speed to about 35-40 I suppose, but wont be much of an improvement when going up hill. Hey Shaun, Yes, this sounds like the gears are too short! On the other hand the manufacturer wants to build engines that perform well in terms of acceleration. I dont know the differences in performance between the two but he was on a 2 stroke compared to my 4. Thank you for recommending the page and I hope to see you on TuningMatters.com 2.0! Another exhaust restriction can sometimes be found in the exhaust silencer of aftermarket exhausts (Yasuni). These are the most common restrictions applied to scooters nowadays and probably the main reason why you are reading this post. 50cc scooters are available in two . They follow a pretty simple (and thus easy to identify) formula, obviously. Your CDI is restricted and does not allow to exceed a certain rpm (VERY COMMON ON CHINESE SCOOTERS) 2. 4. it is very easy to slow a machine down. I own a TGB Bullet RS. more to follow. It should be cut off as close to the manifold as possible. Twist the throttle, and the Elite 80 will be pulling strong, unlike 50cc 4-strokers.

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