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I bought 2 sets of cylinders. There was nothing wrong with one of them. On the second, the liner was honed at an angle. In the upper area of the liner, an approx. 3 x 5 cm area was not covered. One piston had the recesses for the valves milled at an angle. See photo. The other is obviously already an oversize piston. As I have access to appropriate machines, it wasn't too bad for the hobby project.
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I installed in a 2010 Barton Fighter moped. After mounting the moped clearly came alive, it became very sprightly, the top speed also increased. After starting from first gear it can sweep the wheel, and after releasing the clutch faster it stands on the wheel, also when shifting to second gear the front end likes to lift gently. Overall, for this price I can confidently recommend this cylinder to everyone. I recommend 100%
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I have a Junak 901,I bought this kit because the motorcycle was already quite weak. I did the assembly for the first time, and it took me some time. So far I'm lapping , and I have no problem. I think Moretti products , are good parts and recommend.
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Recommended website fast shipping all forms of payment with quality I'm satisfied with the cylinder everything laughs as it should so I recommend!
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Product very well made great fit for motorcycle with 139qmb gy6 engine. The description of the goods is very accurate and with the real.
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Cylinder MCN 80cm3 4T cylinder a very good class cylinder gives a lot of power I recommend to all who want to increase the capacity of the scooter recommended
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I guess this 90cc NARAKU kit must work well. It would be much more professional of the seller to specify that you absolutely need a specific ECU for this new displacement when installing it on a 50cc! Otherwise, it just doesn't work, and there's no one to help you! When I asked them for help, they told me to go and see a garage. That's cool, but not everyone can afford to go to a garage. So I don't think it's right.
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Hello I naprowiam skutrey,Qady etc.Ordered parts really are OK . If you order a good part, it rather has to fit, personally as a mehanik I recommend cylinder 65cm for GY6 4T IS in my opinion the best, fragile, 50 has too little power, 80 can take oil in a short time exploatation Greetings
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Very good build quality. The head with larger valves to this plus the replacement of the main nozzle in the carburetor gives incredible power. And if you replace the gearbox with more teeth in the engine it flies like a storm. 2 times faster and much more powerful. I sincerely recommend. I have taken a lot from this store and everything great.
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the cylinder itself is great and the piston all the seals and piston rings . it's supposed to be a plug and go cylinder . NOT I have a jawu betka/kentoya twinshot and need to buy a new head because the original camshaft is not enough and need to adjust the valve .
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The cylinder fits perfectly to the engine 139FMB, the moped after such tuning laughs beyond recognition, I wanted to emphasize that I did not replace the gasser, it is the original from the fifty, only the nozzle replaced with a larger + head and everything runs perfectly.
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Everything talks as it should, it took me three hours to put this kit on and on the road I recommend! I've been driving for a few days now, I've already driven 100 km and the power is zero oil burning and tp.Everything as described fits perfectly and goes even better!
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Junak 901 2014. Cylinder of good quality, fits perfectly to the engine 139FMB, the aesthetics of workmanship I can rate very good. All gaskets fit, there are no free spaces between the cylinder and the crankcase. I recommend
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Hello I am a mechanic and I buy at Gmoto, various items now I have purchased the above mentioned cylinder has already been mounted on the engine.Engine after overhaul started and the vehicle is already running .Cylinder in my opinion of excellent quality
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The cylinder really is made 100% as it should be everything fits nicely gaskets made of good materials with no worries keep the seals tight but the kit should have included valve seals which I didn't get
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Product as described. Solid components. Cast iron piston fits the cylinder perfectly. Affordable price for this product. At others I have seen the same set for twice as much. I recommend.
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Product as described. Solid components. Cast iron piston fits the cylinder perfectly. Affordable price for this product. At others I have seen the same set for twice as much. I recommend.
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Product as described. Solid components. Cast iron piston fits the cylinder perfectly. Affordable price for this product. At others I have seen the same set for twice as much. I recommend.
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Product as described. Solid components. Cast iron piston fits the cylinder perfectly. Affordable price for this product. At others I have seen the same set for twice as much. I recommend.
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Product as described. Solid components. Cast iron piston fits the cylinder perfectly. Affordable price for this product. At others I have seen the same set for twice as much. I recommend.
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Product as described. Solid components. Cast iron piston fits the cylinder perfectly. Affordable price for this product. At others I have seen the same set for twice as much. I recommend.
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Product as described. Solid components. Cast iron piston fits the cylinder perfectly. Affordable price for this product. At others I have seen the same set for twice as much. I recommend.
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The product met my expectations. Workmanship without reservations. I RECOMMEND. After installation, the motorcycle got a significant increase in power. It is quite different ride for example with a passenger.
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Super article thanks for all person Fits great, I still ride it, thanks and for the fast delivery. Site is super good, everything is there
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Recommendable company good quality products and fast shipping products very well packaged will not be damaged during delivery.
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a great product started with the first run and goes about 100kmh you should buy it and also buy an 80cc cover so there will be no problems 50cc cover did not last much
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The cylinder and piston are very accurate and of high quality. All seals are included. Replacing them was child's play.
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Good quality part no problem with assembly except that it would be good to specify that it is absolutely necessary to have the cylinder head that goes with it.
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The product as described, the quality is good, the aesthetics of workmanship is high. After installation, the equipment works properly.I recommend Krzysztof
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Quality is top notch I can't wait to upgrade to a bigger engine for my little bike. It remains to be seen whether it will hold up over the long term.
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So far it is performing well . I drove 3 km.l;jgvbp[\oakrgpo'\aejrgo['aefgio;'EFGjwpf]\-0WJHFIO'wpuio;HIO;fhw9io[;'fwio;
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I have a moped Barton fifter 72 year 2011 zy assembly there was no problem I rate the product 5 stars is very good goods
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very good quality for the price, it fit my scooter perfectly and it looked good and of good quality. i recommend it
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It was worth the price When you take the time to finish it yourself A little bit of machining finishing.
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Fitted perfectly.Good quality product and easy to install.Fast delivery.I would definitely recommend this product.
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Fits service excellent recommend no problem shipping and receiving. Fits small and large scooters
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