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Derestrict powerband r50 superbyke

My 50cc superbyke r50 moped is too slow i need it derestricting, any suggestions?

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  • Motorcycles Master
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Get a bigger machine ... The so called 50 cc motor bike is a regulation beater with typically 49 cc. If you need more speed and power, get a bigger machine. Typically, they are at 49 cc so the younger crowd can ride at a certain age.

Posted on Jul 26, 2013


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Posted on Jan 02, 2017

  • 40 Answers

SOURCE: how to or can i

first major restrictor is in the exhaust pipe. Take off all the securing nuts and bolts to remove the pipe. You will notice in the end of the pipe that fits to the cylinder head there will be a washer that reduces the bore of the pipe. You will need to grind away the weld that secures this washer, clean out all metal particles and refit pipe to bike. This will dramatically improve the performance. Hope this helps' Alex.

Posted on May 17, 2011

  • 1 Answer

SOURCE: i want to know how to derestrict my derbi gpr125

There is a video on youtube showing you how yo do this, you install a 15amp fuse under the seat...

Posted on Apr 27, 2009

  • 78 Answers

SOURCE: how to derestrict my skyjet

hi the sky jet was fitted with a engine copied from a honda cg125 the power output was never great on a cg125 due to the engine was push rod operated and not over head cam
you can upgrade the front sproket to a 17t that gives around a 15% in top end not much else you can do

Posted on Jun 21, 2009

  • 19 Answers

SOURCE: how to derestrict my dt 125 r

The bike is restricted in qute a few places Ihave the same bike and have just de restricted mine im not sure what the other guy was meaning about the exhaust but he is right it is restricted if you remove the exhaust you will notice that there is a small pipe that has been welded in to restrict the amount of fumes that escapes this needs removing its held on with 3 welds i took mine ti a local car repar place they removed it for me for £20 . also check to see if your power valve servo is working mine wasnt so ive opend the case that has the pullys on it and put a screw in to hold the valve in mid way position ( i noticed a major diffrence in doing this ) also there is a small peice of rubber that you need to remove from the inlet manifold if you take the carb off and then the 4 bolds that hold the reeds in you will see a square bit of rubber cut this off to make it flush as this messes with the air fuel mixture . under the seat you will also find a snorkle just rip this off just yet another thing to mess with air intake . i have also drilled my air box but i wouldnt advise this if you use your bike in muddy areas unless you dont mind cleaning your carb all the time i would also get an irridum spark plug as it improves throttle responce

Posted on Sep 06, 2009

  • 15 Answers

SOURCE: How do I derestrict my 2006 Kawasaki ER5 please?

I assume it has been restricted to 33bhp for use on an A1 license?

If so it will either have been done through the ECU if your bike is fuel injected. Or (more likely) it is carbs then there will be large washers inside the inlet rubbers restricting the bore of the carbs. If you take the carbs off and pull these out you'll have access to your bikes full potential.



Posted on Nov 06, 2009

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