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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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Product as described. Fitted to a Eurocka GTR-B 50cc. I changed the valve clearance. The original valves had too much clearance for the kit to work. Normally intended for a kymco (I didn't test fit a kymco agility 50cc). I've driven over 1000km with no problems. Big power gain 20km/h
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I own a Guitar Runner SP 50cc and a Rutcher scooter without this wrench the valves seemingly well set with a wrench angle and yet not what I found out for myself , it was never perfect and that's b much , lack of power and other problems of misaligned valves . Ideal for 4T scooters larger and smaller . Worthy of Recommendation !!!
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I recently tunigowal a scooter zipp astec used to be 50 now 80 ccm3 year of production 2008. I bought a set of head cylinder piston rings and everything needed. The quality of the parts was at a very high level. The piston perfectly matched to the cylinder. When assembling the engine on these parts there were no complications.
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A set of rear gearbox bearings for a 4t scooter very good quality bearings very well made with attention to detail fit without any problem recommend to everyone
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Cylinder+head without shaft Gy6 4t 80cm3 47mm very well made with attention to detail add a lot of power to your scooter recommend to everyone fits without a problem
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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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My engine had to be renovated with new crank, cylinder and piston also bought oil pump, so bought gasket sets for the entire engine. Jan
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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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A set of gy6 bearings very good quality bearings very well made with attention to detail fit without any problem recommend
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Valve cover gasket 4t o-ring very good quality nothing worth replacing when adjusting valves recommend to all
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I own a scooter brand kingway coliber 50 4t. I wanted to increase its power therefore I ordered the whole tiuning set. Immediately after ordering the scooter ignited without any problems. Parts of this set are made of good materialsmtwn the set is very cheap compared to others I recommend.
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Nuts at an excellent price for 4 hard replacements for the original exhaust mounts on the Honda XR 125. Excellent value for money and a compromise between the original ones difficult to find only in Honda service, for a much larger sum! Highly recommended! 30 years of experience in mechanics!
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ROMET CRS 50 (1997) with a HONDA MX 124cc engine from 1974 (and only 1 overhaul !!!) ŻBIK BOATIAN 49 . (WAS ) NOW IS 80cm3 2005 YEAR. KOMAR 49 1972 VINTAGE RIDDEN AFTER 3 ENGINE OVERHAULS .FACTORY PAINTING
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I replaced the piston in my scooter with 139QMB engine and to my surprise as for such a price the piston really well done , Fits perfectly, the temperature also on it does not do together (does not swell) , mileage on this piston 300km and more and more fits ! I recommend.
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I own a zipp steed 4t scooter with everyone knows gy6 engine,I ran out of rings but bought a new piston because it cost not much more, it was a good choice! The scooter gained the old power at a small cost, I recommend to anyone who has doubts about this product!
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I ordered this 139qmb engine, it fits perfectly and runs like the original from my Peugeot scooter after running in. If the mileage is the same, I'll buy it again straight away But I changed the engine oil and gearbox oil before the first start.
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Moto Ventus Sport 4T year 2007 gaskets are very good quality,they are very well cut,not damaged,they are very well fitted to the engine housings,MCN gasket company I highly recommend,engine not thin you can see that the gaskets are of good quality pozdrawiam
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Fits perfectly for toros eco, I also recommend for other scooters with this size of cover, it has an excellent grip and long attachment, so that if something does not work out we can change the area of application
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Arrived 3pv late and could you please correct the dimensions to be correct as the intention was to fit an 80cc cylinder with a piston and with a trille 90cm³= 80cm³ so I thought a 90cm³ piston is the same size as an 80cm³
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Cylinder and head assembled just fine , all gaskets fit perfectly , fulfill their role for sure , very solid , carefully made , perfectly shaped , highly recommend!!!!
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Four-stroke scooter with engine design of a large number of brands of other scooters. The product fits any valve pomrywy of this type super fast to install without any unnecessary tools.
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I will speak about this product very briefly and yet substantively is made of good materials, fit , easy to install, cheap (in my opinion the best advantage heh Janusz shopping).I recommend
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romet 2014r cylinder and head fit my romet without any problems I had previously bought a cylinder and piston from another seller the rings did not fit and in this set it was ok
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Excellent product has served me for my four-stroke scooter g y6 engine and perfect perfect perfect I have come out very good it has served me it has fit me in the engine very well very perfect.
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It fits, but the quality of workmanship is very average and it is a pity that there is no exhaust gasket, which is sorely missing No exhaust fumes fly by the row because there is no even plane.
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The product keeps its promises, there are no unpleasant surprises. So far the quality seems to be good, but time will tell how long it will last.
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The product keeps its promises, there are no unpleasant surprises. So far the quality seems to be good, but time will tell how long it will last.
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The product keeps its promises, there are no unpleasant surprises. So far the quality seems to be good, but time will tell how long it will last.
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Zipp Steed 50 capacity 50ccm converted to 80 ccm set of gaskets ok all fit carefully matched dimensions engine does not leak when assembled on these gaskets.
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Good engine more powerful than the original fast delivery just transport standing book results book HS to see if give me a book in French it would be cool
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Hello not long ago I purchased a piston along with rings for my 4t 50cc scooter. The piston made of good material. All parts are very well matched.
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Hello I us moped scooter Romet router traffic xs 50 4T -80cc. 2011 year gasket set is very good and suitable for such scooters I recommend to all .
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Super product at good money. Fitting of the product at the highest level. All gaskets in separate foiled bags. Super set recommended
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I installed this kit to my chinol with 1P39QMB engine and honestly did not expect such a power gain. I heartily recommend it :)
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The engine quickly arrived on my doorstep within a few days. It was exactly what was ordered. The carburettor needed a little adjustment but now works like a dream.
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Zipp Steed 50 capacity 50ccm converted to 80 ccm gasket made precisely from highly elastic rubber I think it will be more durable than the original.
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The wrench would probably fit but it turned out to be the wrong size. The square fits but not for the lock screw. I bought in the dark but have already dealt with it.
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Simering Seal 17x30x5 gy6 4t very well made with high quality materials fits without any problem I recommend for any engine overhaul
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It fits right, it's tight. Gmoto is top. Fast shipping, great communication, great selection, great prices and convenient web search. I highly recommend.
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