Rev the engine up slowly and check if at some point the engine stops revving for no reason. 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! Fuel consumption usually increases but in some cases can be lower or remains the same. Loosen the bolt and pull the pin and you can remove the kickstart from the scooter. Examples for these parts are: electronically limited CDIs, diameter restricted inlet manifolds and increased length exhaust manifolds. Whilst running & idol my revs wont sit still. Which scooter should I start out with. minimal damage to seat, fairings, etc but also dmg to air filter, was virtually hangin off where the piping exits the filter heading towards the carb. This is done by pressing down on the pedal as hard as you can while the scooter is still moving. Thank you for the info and hope to help some other people that have the same desire of better speed. Some also come with a variator ring and the carburator air intake restriction! However, I would like to reach atleast 35mph. I bought a 2013 Kymco super 8 50cc 2t scooter last month. Would love to get more and more tips from you! Welding a washer onto the hole should do the job. Restrictions through replaced parts on the other hand cant be simply removed. 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. The Yamaha Minarelli engines have a dummy pipe and a variator ring applied, similar to the Piaggio 2 Strokes. The new muffler will enable your scooter's engine to expel exhaust faster and cleaner, allowing more air to enter the engine during fuel combustion. 2. Thus, look for the usual Minarelli restrictions and get an unrestricted CDI! This is probably somewhere around 7-800rpm. It can be divided into three groups: This can be covered quickly as I only know about the catalyst applied to exhausts. Beware as the stock exhausts are usually much more expensive than an aftermarket part and at the end of the day you will buy an aftermarket exhaust anyways when considering tuning as a serious hobby :). Increase the air flow to the engine. Parabrezza Givi 288A + A5602A Piaggio Typhoon 50-125 (11-14) moto. There is only loss of pollution to air. As said in my email, you probably received the wrong exhaust. 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. Although I have zero experience with these seemingly disposable 2 wheelers Everything breaks Lol. 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). This makes it easier to find and remove the restrictions. hi david i live in pakistan and have a yamaha junoon yd 100 and its cdi has gone faulty.the original is 1.too expensive 2.not availble any where near to me 3.its quality is not good as compared to the original one that came with the bike so it will probs go faulty again.what im thinking is of installing cg 125s cdi and coil with my own bikenow what i wanted to know is what are the disadvantages of having too much spark in the spark plug.i mean im installing a heavy cdi in place of original one, Hi I have this 50cc Pocket bike Im a person that loves to go fast. I had to push the frakin thing up to a lesser incline the shame. Any tips would be appreciated, cheers colin. In most cases derestricting the scooter not only improves the performance of the engine it also allows it to perform better, longer. Hi, It is actually a Chinese scooter, not a Japanese. If it revs higher than 8000rpm you're don't have a restricted CDI in place. 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. The local dealer is really uncooperative and refuses to provide any info on the restriction itself (i.e. The panel says its restricted to 30 And my question is that i would like to increases the speed more than 30, at least to 40 because going up the hill it goes to 20, and when I am caring one bag of shopping its more slow. The easiest way to remove the catalyst of your scooter is to replace the stock exhaust with an aftermarket model. But it goes 35 mostly and less often it hits 40. Unlike with the stock restrictions, these custom restrictions are explained in detail in your operating license. When we finally stopped for a chat, i had a go of his myself so i could see how mine should ride with no restrictions in place and the thing nearly took off from under my asre the acceleration was that fast! All-in-all. If you continue to use this site we will assume that you are happy with it. 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. If so, then the rollers are too heavy. 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. This can be accomplished by either drilling holes into the air intake (located above the variator case) or by removing the intake altogether. Detach the kickstart from the variator system. The Chinese all use CDI restricted Minarelli clones. Listen, thanks man anyway. What is this black plastic plate you are describing? Swap kits plus motor cost about 5-600$ and gets you up to about 6-70mph afaik. Unscrew the fastening bolts located near the connect point between the exhaust pipe and the muffler. It usually is about 5mm thick. Assuming i dont derestrict anything else. I have cleaned the carb before I re-fitted it, cheers colin. I meant pointless. Pretty sure it has the blind pipe on it. Its normally more expensive to use more packages, even if the total cost of the chips is more. Thanks for the help have ordered some new sprockets thanks shaun, Hi, I just got my Vespa Primavera 50 2T derestricted in certified Vespa garage, but on my way home I noticed that acceleration isnt what it used to be. 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. I can perhaps get a hardly noticeable increase in power if I use a little (manual) choke. Unscrew these bolts to remove the intake entirely. The throttle opening restriction prevents the rider to open the carburator completely. I have a 2013 Honda Ruckus and I was wondering if derestricting it is possible and is it worth it? Sorry was mistake in cdi code, I have ordered cdi ducati 639978. The filter is one of the cheapest components of a 125cc motorcycle but one of the most important. Place your scooter on the main stand and make sure it's secure. [] mph). 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. Be it rust, damage, lack of lubrication, or something else??? In most cases, the connecting rod is shortened the same distance that the big end bearing is moved. 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. 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. It is attached to the system by a pin that is tightened into place with a small bolt. A 50cc two stroke that can get a minimum of 40-45 mph with minimum work (ie, simple derestricting). The belt is too narrow. Could it be the same OM cdi with built in speed limiter? A catalyst has to operate at a high temperature to perform in its intended way. ;), On Google, this found the correct schematics: gy6 cdi mod For practical intents and purposes, unless you know a lot about electronics and EXACTLY the schematic of yours, CDIs are pretty hard to clone and even harder to mod. You will be happy to hear that I am currently working on the relaunch of Tuningmatters.com. 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. Any help would be so welcome. If possible a torque wrench should be used when tightening the nut at 40-50nm depending on your scooter model. Alter the variator system by removing the restricting washer underneath the front pulley wheel. They dont carry any parts for it. Derestricting a scooter makes it faster and therefore more dangerous to ride. In theory, it would be possible to black-box reverse-engineer a clone of CDIs based on oscilloscope traces. Count the teeth on the front cogwheel and and get 1 size bigger one (means one more tooth there). BELT (default width = TBA)(verified width = TBA) never thought about it being too narrow?! Ive a fairly good understandin of the importance of o2 in the combustion process, and how sealing up the filter hole would invariably lead to a loss in power output, but it is not this that vexes me?! 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. 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. P.S. The X-PRO 150cc Adult Moped is everything you could want in a fun, reliable, and compact gas-powered scooter. I have noticed you dont monetize your blog, dont waste your traffic, you can earn extra cash every month. One is to induce a turbo. REAR PULLEY There is a squealing noise coming from around the rear wheel when I initially start up and pull away, the same noise as you sometimes hear on a car as it pulls away, but i might have mistakenly put this down to the brake needing to be replaced, although the brake has poor stopping distance! Hey Daniel, I live in the states and ive been looking into getting a 50cc engine. I assume it is a used scooter, therefore I would check these things first: Hi Daniel, I have a lexmoto lsm 50 with a 90cc big bore kit I have changed the main jet to a 105 that was recommended by a motorcycle shop and have changed the cdi to a full power one but the bike still tops out at 30 mph is there any other ways of restricting it I can look for. Does it raise the reed valves? Ensure wearing gloves and dont breath in the petrol gases when working on the carburator. 4. Hi, Its really difficult to find information about your scooter. This hose is needed to keep the catalyst clean. I want more accelerationI weigh about 185lbs Can you please give me your thoughts. More fresh air in the mix increases the temperature during the ignition process. This should do the job! His work has appeared in The Penn, The Antithesis, New Growth Arts Review" and Deek magazine. 1. The variator is the part that connects the power generated by our engine with the transmission system. 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. It also has a hydraulic caliper at the front that chomps down on a 200 mm disc. Any idea what the top speed would be with a un-restricted CDI? Im bout oleo the vriator racing weight to this model,Do you think i have done it correctly ? The little clip you can find on the needle is for adjusting the fuel / air ratio. Currently the scooter has had the carby rejetted and some sort of derestriction on the stock exhaust by the previous owner.
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