I bet most bikes use AC CDIs for example. Hi! 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. Buying these usually will cost more than buying a 70cc kit off of ebay and learning how to do it properly will also take a lot of time. Derestricting a scooter makes it faster and therefore more dangerous to ride. Look for the common restrictors as outlined in the article and if its a 4st model look for an unrestricted CDI. am reaching 17.5k on the clock an i bet the belt aint bin changed yet so theres another new part for the ever-growing list. And yes, China Scooters aint so good, a Piaggio or Japanese model is certainly less of a hassle :-/, Im curious, also. 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. Help just had clutch to bits on piaggio nr3 now engine cuts. Pull the old muffler off of the exhaust system. 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. I really struggle for information about my 4 stroke Yamaha aerox 2015. In return, as a sign of respect for finally organizing the mass of de-fragmented scooter info in my head, i will recommend visiting this page in every forum im listed with. Get involved in the comments, or post to the forum to make this page more fun for everyone. The exhaust restriction is applied to most scooters and can be easily removed. ), Honda ruckus, Yamaha zuma. Id like some help on how to get the moped to reach higher speeds. I mean bike is only 3yrs old, and has more than likely never bin changed, which begs the question of the longevity of belts? Thank you for the information combined in such a nice article! Derbi has Minarelli engines I believe. The exception to this rule are scooters that have developed proprietary parts (for example, Honda). Unscrew the fastening bolts located near the connect point between the exhaust pipe and the muffler. Still a lot of tuners prefer to do an engine swap to a Minarelli engine as its easier to find parts for them :-/ You can try tracking down by looking for the engine rather than your model. 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). The new posts are unique and pass the copyscape test. Its confirmed as being a Long Case GY6 139QMB engine according to the chassis and: http://www.youtube.com/watch?v=vP7OnJZGcCc, And a JCM139QMB according to: http://www.jincheng-global.com/zdw3.asp?prmo=JC50QT-20&tyno=A&ptty=A02. This also means that all installed and replaced parts are yours. The diameter restriction is often found on street legal after market exhausts (Stage6 Replica, Yasuni Z, LeoVince, Tecnigas, etc.). One is to induce a turbo. How to make electric scooter faster? | Step By Step Guide There are heavy fines and you might loose your license when getting caught or involved in an accident! Any advice or info on what I should do to increase my scooters performance especially for the annoying hills would be appreciated. 5. In oder to stay within the limits but still have a well performing engine various restrictions are applied to the engine so the scooter can receive its road legal certification. Increase the air flow to the engine. 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. If what you want is to increase the power of the bike to your liking and directly modify the engine map of our scooter and its injection, this is your modification. have you done any other changes besides the CDI? For example some stock exhausts use a very long exhaust manifold that decreases the gas flow and therefore resulting in reduced performance. There is an article on how to build a mid race engine and an article about which parts match with what! How does the bike feel. The scooter most likely has a variator ring installed. 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. If we decide to do any tuning mods, well have to look into Colorados rules and if we need to get a MC designation on our licenses. Quieter and Reliable. Hi I was looking through these posts and it seemed interesting! I tried to adjust the needle in the carb but its non adjustable Clutch locks up at 4200 rpm and revs up to 7800-8000rpm before the variator starts to expand and shift Drops down to 6k and slow to build rpm back up to redline which is 8k. Best, Daniel, Are there washers on the needle valve that can be moved around to increase speed. P.S. Hi, This sounds like your rollers in the variator are a bit too heavy. There are some other exhaust restrictions. Thanks mate. This can be accomplished by either drilling holes into the air intake (located above the variator case) or by removing the intake altogether. Hey Daniel, unfortunately, you dont have a clue what is going on there, so here it is: High temperatures, of course, can not be avoided, be it in engine or exhaust, be it stock scooter or not. 4. We hope this article has been of interest to you and that you have been able to learn how to increase the power of your 125cc motorcycle. You have to have a longer and hotter spark to ensure the entire Air Fuel mixture gets combusted. In the case of the Spanish territory, you should know that a person with a B license (3 years old) or with an A1 license is limited to drive a motorcycle up to 125cc and 11kW, which translated to horsepower is 15hp, with a weight/power ratio of 0.1 kW/kg. Hi Theodor, Sorry for the late reply. The kickstart is attached to the variator system by a small . cheers james. Either way, Im swaying towards this as being the problem due to it never excelling past 7.5-8 thou revs! These devices follow some kind of voodoo for the average person kind of like the old AC/Heater timer controllers about 25 years ago. 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. Mhm normally this sounds like a carb adjustment issue (too big mainjet), but since you run the stock carb it should rather be too lean (too small jet). Continutul cosului. Best, Daniel. Some allow riding a scooter without a drivers license and others have multiple different licenses for various engine sizes. Weve derestricted by buying the modded cdi,when opening up to full throttle it only revs up to 9000 rpm then backs down to 8000 and keeps alternating between the two,you can get past it by adjusting how much throttle you give it but if you give it too much it bogs. Whilst this can be done it is usually not worth the effort. Throttle opening and air supply restrictions are often found on scooter carburators in order to restrict performance. Removing the variomatic ring is difficult as the variomatic is sitting on the crankshaft which spins when trying to unscrew the nut. The kit mostly contains of an electronically limited CDI and some other parts (removal of the pillion seat, cylinder head spacer to decrease compression, etc). A 125 2 stroke might go faster but the 125 4 stroke should top out around 60 to 65 but will not last very long without a lot of work if you run it at those speeds. 3. This scooter is a reliable, air-cooled, 4-stroke engine with a CDI ignition system. Compare the pressure with the max cold PSI number written on the sidewall of the tire. 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Does anyone know what restrictions there are on a Yamaha YN 50 E Neos ? 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? Oh well, sorry for rambling, hopefully youve got a clue about how my moped is restricted, because being LOCKED down in 50 KPH is very annoying. Have a look whats hooked up to the battery and the stock cdi. You will then remove each pulley wheel by unscrewing the centre bolt holding them in place. Best Overall. Can you give me some idea about Scooter vespa LX50 4T, engene code C389M. 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. Its been hard to get thia restricted but I am getting there. I had to push the frakin thing up to a lesser incline the shame. Twist the throttle, and the Elite 80 will be pulling strong, unlike 50cc 4-strokers. Hi, Sure but I need some more details. It wont even get up hills, yet alone drive at dangerous speeds! In addition, it can compromise the integrity of our engine for a use for which it was not manufactured. Cold-blooded. Which scooter should I start out with. Hope this helps! The carburator needs to be adjusted according to the amount of air it is processing. Ive asked the shops about the CDIs, and they are saying it doesnt work with the Bullet RS. They are incompatible with other engines on the market and therefore less attractive for Western tuning companies. His work has appeared in The Penn, The Antithesis, New Growth Arts Review" and Deek magazine. Im certain it has to do with the mainjet. 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. 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. Which parts are necessary to buy to tune up the engine? [] RicambiMoto2000.it Ricambi e accessori per scooter e moto. There are heavy fines and you might loose your license when get caught or involved in an accident! You will need to buy a new one here. To avoid that the restriction piece falls into the manifold when grinding you should build a hook out of some wire and secure its position. They usually require the purchase of an unrestricted part or considerable amount of modification. I need help. Listen, thanks man anyway. A bigger carburetor alone will not make your bike go faster. Is driving with a derestricted CDi bad for the scooter in anyway? If you want a good balance of performance and sound muffling, you would likely pick a more thickly packed muffler. Will a bigger carb make my bike faster? The cooler alternative imho is to swap with a Minarelli 50cc engine as its 2-Stroke, but thats just me :). would this be a good or bad idea. Petrol is poisonous and causes cancer. These are bolt on solutions and cost only about 20-30Euros. I can perhaps get a hardly noticeable increase in power if I use a little (manual) choke. Examples for these parts are: electronically limited CDIs, diameter restricted inlet manifolds and increased length exhaust manifolds. Mine has a top speed of 35mph/56kph. Ideally have someone to help you holding it in place. We empower you to efficiently solve each new challenge and make your life better and easier. what jetsize do you currentlt have installed? The throttle opening restriction prevents the rider to open the carburator completely. When reassembling the variomatic the crankshaft nut should be secured using Loctite (medium) or a similar threadlocking adhesive. Do you have any tips for me on how to derestrict it and/or improve performance. A derestricted CDI is not a problem at all. According to my official papers the engine is NS-50F. This is possibly the thread with the worst advice on here right now, so I'll chime in. So you took the clutch a part and now it only goes half speed? Buying an unrestricted CDI overcomes this limitation. Will they need to do any carby adjustments, upsizing the main jet etc ? Tho, it might be that the engine is really just crap and wont go faster even tho its derestricted. This can be accomplished by either drilling holes into the air intake (located above the variator case) or by removing the intake altogether. Also, find me on Google+, or Twitter. Under inflated tires will slow your scooter down significantly. Have you tried going downhill? They can break the piston, cylinder head and even damage the crank shaft when too much force is applied. Whether you need to fix, build, create or learn, eHow gives you practical solutions to the problems life throws at you. In most cases, the connecting rod is shortened the same distance that the big end bearing is moved. Either by air intake or by not allowing the full opening of the throttle. 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. Thanks shaun. You basically need an oscillator, a way to control its speed, a way to control duty, and advance phase(advance timing in ECU terms)? Hi Kimmy, Nice, this sounds good! The Naraku ones from Racing Planet are cheap and good! They dont carry any parts for it. Hi Daniel. dont know too much bout them at the mo, but understand the value of their weights acting in relation to the centrifugal force to produce torque on the belt system. Best 49cc Scooters: FAST and Durable Models [2023] - Inboard Skate 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. Does it raise the reed valves? I meant pointless. But I believe you should replace after every 10.000km. Different countries have different laws. A 50cc two stroke that can get a minimum of 40-45 mph with minimum work (ie, simple derestricting). Have you done it? In that case you would need to do more serious stuff like exhaust porting and engine flowing. 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.
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