You also you need to unscrew the servo motor to get in (see below). When you get this pipe off you will see the intake plate restrictor (see below). Take the screws off and pull the restrictor out, then reassemble the connection from the carburetter to the engine, and reattach the servo motor. Now you need to upjet. i too also have a suzuki marauder, i have had it a month and a half, at first i was thinking it is slugish for a 125 but i went a ride for the first time with my friend (he is on a yamaha yzf-r125 leo vince race replica cmc edition only) and he kept trying to get me to push my bike to its limits to see what she can do, i still dont know what she's fully capable of but with him pushing me i got HI, i have recently serviced my derbi gpr 125 4 stroke and need to turn off the service light can anyone tell me how please. Read full answer Be the first to answer Jun 29, 2011 • 2006 Derbi GPR 125 Racing I wouldn't have thought that a Third World 4-stroke 50cc scooter was capable of doing much more than 30mph, unless you fitted a turbo. 2-strokes used to be restricted by fitting plates to the intake port or carburettor, or a stop which limited the throttle slide, reducing the amount of air/fuel entering the engine. It's a 4 stroke 125 plodder. If you want more power either get a bigger bike or a 2 stroke! 2 strokes make almost twice the power of a 4 stroke of the same cc. They needed restricting, Diesels (sorry, 4 strokes) don't as they only produce half the power. With 2 x NSR125's, 3 x TZR250's and a TDR250, I'm a bit of a 2 stroke fan though! Scooters can get between 100 and 120 mpg, so that leaves us at an estimate range of 132 to 158.4 miles or 212 to 255 kilometers. How fast can a moped go? Most states classify a moped with a 50cc or less engine and a maximum speed of 28-30 miles per hour . How To Derestrict A Honda XR 125. The Honda XR125 will have a top speed of around 55-60mph which in some instances can be frustrating for the rider as you lack the ability to over take at the top end of things. The Honda XR 125 is a 4 stroke and cannot be derestricted because it runs at full capacity as is. there's prolly sod all can be done to that old 125 2-stroke mill. 60mph for a 125cc trail bike isn't bad tbh. a _____ Mudskipper wrote: feef, that is such a beautiful post that it gave me a lady tingle Windchill calculator - London Bike parking Blog and stuff - PlentyMoreFish dating .

how to derestrict a 125 4 stroke