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
Simply take off exhaust and there is a cone thingy i suggest puttin huk attached to fishy line when u grand it off so it comes out better instead of shakin the exhaust that should be all if not then a racin cdi n that will be all
(i dont own a dt 125 but my dad had one of the 50s back in the day and i have a rieju rs2 50 so i know what im on about)
Posted on Aug 31, 2009
Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Good luck!
Posted on Jan 02, 2017
SOURCE: derestricted Atlantic 125
The only way that 125's are usually restricted is through the exhaust. Theres usually some for of washer or something in there that restricts the exhaust that you can dremel out.
Posted on Nov 10, 2008
SOURCE: dt 125
Hi .........
In your case I would suspect that your timing is retarded and the bike would run better/correctly if you set it to factory spec. Or maybe you have a mechanical 'advance' and it's stuck in the retarded position?
Good problem ............ let me know how you get on
Posted on Dec 29, 2008
SOURCE: How can I fully derestrict a 2008 TDR 125. Bike
Hi,
I suggest to check wether the carburator has a restriction in the holder
check if the clapets (between carb and cilincer) has a restriction
check if the exhaust has a restriction.
But overall: a race-exhaust, a tecnician who personalizes the carb to the local wether conditions by adjusting the jet, an eventually needed unrestriced cdi will improve bigtime.
greetings from a big 2s fan.
Olivier.
Posted on Oct 22, 2009
Oct 14, 2015 | Motorcycles
Jan 18, 2014 | Yamaha Motorcycles
Dec 10, 2013 | 2006 Yamaha XT 125 R
Oct 29, 2013 | Yamaha Motorcycles
Sep 15, 2013 | 2002 Yamaha DT 125 R
Jul 15, 2012 | 2004 Honda XL 125 V Varadero
Apr 06, 2012 | 2008 Aprilia RS 125
Mar 12, 2012 | 2000 Honda CG 125 Cargo
Aug 29, 2011 | 2005 Yamaha DT 125 X
Nov 30, 2010 | 2004 Yamaha DT 125 R
Nov 02, 2019 | Motorcycles
Oct 30, 2019 | Motorcycles
2,394 people viewed this question
Usually answered in minutes!
×