Lexmoto claims 150mpg for the Aspire 50, and it's not that good, but hard-working mopeds often drink more fuel than a gently ridden 125. Topping up the tank after 41 miles, it took just 1.87 litres, which works out at 99.6mpg, about what I'd expect from a geared 50, though in easier terrain it might have given a bit more. chillilicker wrote: my friend is not a liar as we were along side him in a car watching his speed coz he broke his speedo just after he got the bike and he wanted to no how fast it could go. The only way to get 55mph out of a 4 stroke 50cc is to throw it off a cliff. Back to top. You must be logged in to rate posts. Step by Step, CDI, etc. CDI Derestriction. The Aprilia RS125 comes with a CDI restriction. It retards ignition around 6000rpm so the bike can pass EU emission tests so they can be manufactured. This makes your bike perform very poor at 6000rpm and does not let the engine pull. Derestricting this will invalidate your warranty. Yamaha MT-125. Specs: Engine – 124cc, liquid-cooled, 4-stroke, SOHC, single cylinder. Max Power – 14.8 horsepower. Max Torque – 11.5 Nm. Top Speed – 80mph. Seat Height – 810mm. Wet Weight – 142kg. There is no denying that the Yamaha MT-125 is one of my favourite motorcycles of all time, not just in the 125 segment. Kph. Not more on stock exhaust. Has a lot to do, with the pressure.. way easier to tune the 2ct. Holy. 😂👍🏻 Still hard to exceed 80 kph of the gearing. On any stock.. Sure you can run 119 125 Kph on some stock gearing, but certainty not em all.. Some not possible, they'd have to run 20k rpm. Lol (ok stock gearing) To compare. A mhr. 70cc. 106. Posted May 8, 2008. Because its a 4 stroke 125, there isnt much in the way of 'deristricting' to get more power out of it you will have to change the exhaust, jet the carb, polish the ports, look for a higher lift cam, look at ignition. Remember that its a 4 stroke and cant be deristricted like 2 strokes!! SOURCE: de-restrict an aprilia rs 125 You shouldn't have to restrictions only happen on faster bikes 600cc onwards but if you talking about the inabilty to push your revs to the very max, I wouldn't do this unless you know what you doing, and by you asking this question, you don't know what u doing, this rev restriction is set in place for safety of your engine, rather than restricting speed.,,, I don't think you do, I think 15hp is all you can get out of the Piaggio 125cc engine. If you look at other 4-stroke 125's you'll see some only have 10-11hp. 15hp out of this capacity is good. Now Undo the two nuts which hold the silencer can together and pull it apart. Here you can visibly see the Yasuni quality which you won't see in any other scooter exhausts. All joints are perfectly matched and sealed with O-rings. On many other exhausts the silencer clamps together against the cylindrical sleeve. 6jCTX4c.

how to derestrict a 125 4 stroke