Scooter mechanic here. 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. So you took the clutch a part and now it only goes half speed? They are incompatible with other engines on the market and therefore less attractive for Western tuning companies. Hi Bryan, Congrats on the purchase :) Most Asian scooters have a restricted CDI, which means they wont go faster, even when going downhill. We're always willing to return your call if you have questions. Not sure I how to increase the performance of this type of engine , been looking at all of performance heads and cylinders, carburetors, transmissions, etc. Any tips would be appreciated, cheers colin. Swap kits plus motor cost about 5-600$ and gets you up to about 6-70mph afaik. before i noticed this i was getting a good 45mph [Level Road], after i noticed i made a judgement call to seal it best i could til can afford new one, so when fully sealed max mph is reduced to 30-33 [LR]. Unlike with the stock restrictions, these custom restrictions are explained in detail in your operating license. I bought a 2013 Kymco super 8 50cc 2t scooter last month. I was looking here, for info just to get the bike performing to the levels it would in a higher-pressure, warmer climate, with a lack of hills with 10% inclines. Theyre all either yobs wanting to outrun the 5 0, or either have the understanding and are lax in presenting it, or they just dont care for the fine collaboration of the machine parts to enhance performance whilst maintaining its longevity. Out at half throttle anybody know why. My moped is from 2012 please let me know as soon as possible. Best 49cc Scooters: FAST and Durable Models [2023] - Inboard Skate 50cc Scooters and up.. 125cc Scooters and up.. 250cc Scooters and up.. 2 Stroke Scooters. The scooter brakes through the 140 mm drum-type brake at its rear. 2ndly do you know of any other restrictions? The new posts are unique and pass the copyscape test. One is to induce a turbo. Have you received a list of what was done in detail? No, usually not. Thinkin it would just be easier to put the thing on e-bay or auto-trader an buy me a 125! Be careful when modifying the air filter box. I really struggle for information about my 4 stroke Yamaha aerox 2015. I have searched on ALOT of websites, and i havent found a single derestricted CDI for my Bullet RS. And after some research i thought a derestricted cdi would help so i bought one, installed, and no change. My highest was 45 and that was down hill. Thanks for the information dont have the money right now but its useful to plan with. Or more common sense language: These engines all need mostly the same timing because theyre all GY6 clones! 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! This is the intake stroke. just read the article and reverse engineer the restrictions. List of questions still remain unanswered tho! The only parts acceptable to remove from an air filter are diameter restricting nozzles as pictured below. There are some other exhaust restrictions. Ensure wearing gloves and dont breath in the petrol gases when working on the carburator. Derestricting your 4-stroke 50CC scooter is an accomplishable task with the right tools and know-how. Will a bigger carb make my bike faster? The 150cc, air-cooled, 4-stroke engine is . Have a look at our derestriction article to read more about this [], No further news to add as of yet altho did hit 50mph yesterday in the liverpool tunnel (down hill) on my nifty ;). 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. I tried fitting the old Aprilia thermostat into the Italkit cylinder head and it fit, but when I tried to put it together I noticed that the thermostat is too long to fit into the cylinder and let the head seal to the cylinder. I have a couple in mind already, but heres what I want. 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Another exhaust restriction can sometimes be found in the exhaust silencer of aftermarket exhausts (Yasuni). Basically, tiles are placed on a surface and the spacing in between tiles is filled using a powder called grout. How does the bike feel. 90 on a stock engine is way too big! I appreciate it that you like it so much. Whilst this can be done it is usually not worth the effort. Thank you! You can drill or poke holes into the intake with any size drill bit or awl, as it is non-rigid plastic. 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! How to make electric scooter faster? | Step By Step Guide 1. Pretty sure it has the blind pipe on it. 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. The exception to this rule are scooters that have developed proprietary parts (for example, Honda). Removing the restriction does not require any welding. 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. Do you know what engine it has? The intake manifold needs to be replaced when using a bigger carburator. ring previously removed, no slider openin ress, no carb air supply ress, intake manifold size unchecked as further reading required. Now to find out why its not charging my bets on the almost constant rain that weve been receiving lately. I mean bike is only 3yrs old, and has more than likely never bin changed, which begs the question of the longevity of belts? You will then remove each pulley wheel by unscrewing the centre bolt holding them in place. In order to remove the dummy pipe simply cut off the pipe with a handsaw or a micro grinder. Parabrezza Givi 288A + A5602A Piaggio Typhoon 50-125 (11-14) moto. That will limit your top speed. Here is my questioni dont understand how removing the air box will cause the engine to bog down bad It wont take the gas like it did with the restrictive air box Im stumped.I placed a piece of tape over the intake that connected to the air box and that fixed the problem. According to my official papers the engine is NS-50F. 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. Maybe the problem is much more with the cdi. The restriction definitely does not lie in the front pully wheel because there is no restrictive washer in there, i have checked. The fastest it will go is about 58km/h and if im lucky 60km/h. Any advice or info on what I should do to increase my scooters performance especially for the annoying hills would be appreciated. Is the rev increasing then? 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. How to make my 125cc scooter faster? | JCosta If it needs a CDI then please tell me which one to get and where from. Although I have zero experience with these seemingly disposable 2 wheelers Everything breaks Lol. 3. Kymco Super 8 - 4 stroke - more speed | 49ccScoot.com Scooter Forums No risk for engine damage or anything! I could take on any car on stoplights before, now I feel like Im bogging down the traffic Any idea what may be wrong? Tho, you need special hardware to do this, like a dremel and grinders. And those CDIs have 6 pins, which also mine has. Hi Nigel, Its actually the other way around. I would greatly appreciate your help if you know anything about this topic. Great website. 2015 TuningMatters.comConcept and Development Daniel-Klose.com. The intake is the black, plastic part on the left side of your scooter above the box (variator system) to which your kickstart is attached. Your scooter is electronically limited through the cdi. whats the carburator size? Fuel ignites with the help of air, so the more clean air that flows into the engine the more combustion you'll get. Im bout oleo the vriator racing weight to this model,Do you think i have done it correctly ? []. 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. This will help in clarifying my understanding of the CDI, as im only JUST learning how it functions. Could it be the same OM cdi with built in speed limiter? CDI The problem with those CDIs is that they are a) not documented, so youd need to reverse engineer the circuit yourself and b) they are usually one big piece of glue underneath the plastic. They usually require the purchase of an unrestricted part or considerable amount of modification. Mhm, it sounds like a carb issue then. currently running at way too slow and really need the help. Hi Daniel, Thanks for the interesting article. I dont speak very well English, and I was wondering if you can help me, my moped is a Honda vision 50 cc 4 stroke. CDI Obviously pink wire had no effect, but would i be right in deducing that de-restricted CDIs have only 5 wires regardless of the pin count? - Monimoto US, How To Quickly Determine The (DellOrto) Carburetor Main Jet Size, How To Check Your Spark Plug for the Correct Carburetor Setting, How to check if your Scooter CDI is restricted, The Ultimate Scooter Tuning Exhaust Test (70cc Sport), To allow for use with a certain drivers license class, To comply with speed limits and legal requirements, Check the vario rollers for wear and replace them with new ones, Ensure that the belt is still within specification or just get a new one, Remove the vario restriction as described in the article. 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. Thanks Lee. 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. cant find any info anywhere. also how would I go about finding an unrestricted CDI? Peace-out! You can also find variator rings in some engines! If so, then the rollers are too heavy. Rear Pulley I believe the sound comes from either the pulley spring, or the clutch springs. What also helps most likely is installing slighlty lighter vario sliders. Also, this is only valid for the 50cc models. This makes it easier to find and remove the restrictions. They are a good investment and can be used for carburators up to 21mm diameter in size. These can only be replaced by buying a shortened exhaust manifold. Fastest 50cc Scooter in 2020 | The Adrenaline Buff Alter the variator system by removing the restricting washer underneath the front pulley wheel. Do you have a 125cc scooter and don't know how to get more performance out of it? What is going on is that unburnt fuel from engine gets burned in catalyst. thanks guys. If possible a torque wrench should be used when tightening the nut at 40-50nm depending on your scooter model. Best parts to make your 4 stroke scooter faster , hands on reviewsFollow me on twitter@mopedtuninghelp Hi, Sure but I need some more details. Place your scooter on the main stand and make sure it's secure. How to make a 4 stroke scooter faster | eHow UK Make A 50cc Scooter Go Faster - YouTube Just purchase an unrestricted one for 50Euros and everything will be ok! It should be removed as the ring causes the engine to run at a high engine revenue speed most of the time (imagine you cycle on a bike always on the first three gears even though the bike has seven). I suggest to not modify the air filter or cut out parts. Therefore, we will stick to those modifications that comply with current regulations and do not pose a problem for you, your insurer or other road users. would this be a good or bad idea. How to Make My 125CC Motorcycle Go Faster | It Still Runs Do you have any tips for me on how to derestrict it and/or improve performance. 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. How to derestrict a 4 stroke | eHow UK However, sometimes the manifold is even to small for the stock carburator. It is true that, in terms of performance, a 4-stroke scooter will gain between 1hp or 2hp. Got to thinkin bout rollers in vario. Unfortunately after a long-long time checking here and there, trying to find an unrestricted CDI for my scooter I couldnt even find any info not only about that but also about my engine in general. However the top speed of the vehicle needs to be restricted to 25km/h to be compliant. All-in-all. What carb is it? When i removed the vario to inspect the ring, with two lengths of bicycle chain linked together and attached round the center stand structure for leverage by the way, i immediately noticed that the travel line of the belt was a poor 2/3rds of the way up the var and looked like it had never even been close to full potential. What should I check/change/adjust next? Hi Daniel. Idle Speed This needs to be adjusted when the engine is warm. Anyway the idle speed you mentioned makes sense as my air filter is still holier than the pope an i CAN imagine their being debris gettin in but just cant afford any new parts at the mo as am recently outa the job so itl have to wait, Although I havent yet put carb cleaner through the system, I did think there might be some debris cloggin the jets or somethin else, so took the carb apart an ensured all openings were free of dirt by threading fuse wire through them. Unscrew the fastening bolts located near the connect point between the exhaust pipe and the muffler. Look for the common restrictors as outlined in the article and if its a 4st model look for an unrestricted CDI. All that is needed is a little grinder (ideally Dremel, Proxxon, or other micro grinders). You should lower the weight of the rollers! Welding a washer onto the hole should do the job. 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. Cold-blooded. We're always willing to return your call if you have questions. And where does it sit? Tho, it might be that the engine is really just crap and wont go faster even tho its derestricted. 3 times today it cut out on me at the lights goin to & from work because the revs dropped too low. Consult your owner's manual and a motorcycle or scooter mechanic or salesperson to determine what type of replacement muffler system you should purchase and install. Hi Lee, This sound indeed weird. [] mph). In theory, it would be possible to black-box reverse-engineer a clone of CDIs based on oscilloscope traces. 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. My question is my bike seems like it loses power or acceleration. Examples for these are variomatic rings, exhaust dummy pipes and carburetor opening restrictions. hi daniel, I have an aprilia Rx50 2009 model and when accelerating down a hill after 40mph it will not accelerate anymore could this be the CDI restricting it? Archivi Products Biondi Accessori. The new muffler can be installed by reversing the order. Twist the throttle, and the Elite 80 will be pulling strong, unlike 50cc 4-strokers. what i have read and further more what i understand, so far makes some sense. Will replace with new one anyway for DIRECT comparison for future reference. I have a 98 Yamaha that is dangerously slow going up any sort of hill. In this way, we ensure that, even if we increase the power of our 125cc 4-stroke scooter, we will not have reliability problems and our bike will last longer. 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. These restrictions are usually provided by third parties which means it is not a restriction applied by the manufacturer of the scooter but a kit bought from a company that specialises in restricting scooters to comply with local drivers license laws. The safest way to block the crankshaft is to buy the special blocking tool. cheers for the info on the springs makin the noise, wouldnt have bin able to diagnose that myself. I just finished re-porting the cylinder for a bit more hp. On the other hand the manufacturer wants to build engines that perform well in terms of acceleration. Thanks Shaun. New spark plug wouldnt hurt neither! Sure, I can reach 60kph now, but getting to 40kph is a pain. Id increa the mainjet then by 5-10 numbers! It is an old scooter and it comes out of the hole hard esp when the clutch is cold. Hello Daniel! Swap out your scooter's current muffler. 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.
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