DT125R ARCHIVE

NEV · NEV

Been reading about people de-restricting their standard exhausts, with a fair few cutting them open to find nothing inside to restrict, so I thought I'd put this info I came across this week, to help those thinking of doing theirs. All pre 1999 standard exhausts have the 3MB code stamped on them, t...

NEV · NEV

DT125R STANDARD EXHAUST[URL=http://imageshack.us/photo/my-images/196/exhaust2h.jpg/][IMG]http://img196.imageshack.us/img1...

firdauz8 · firdauz8

Where can I find full standard system, not modified. For yr 97-98?

dan28 · dan28

any tips on removing the cat I ve cut the exhaust right next to were the welds are on the cat but its not moving when you you look at the cat there it has a ring around it do I need to remove the honeycomb section from the ring leaving the ring still in the exaust or remove the ring from around the cat

sebamax2 · sebamax2

well so i have got 2 dtr downpipes and i know that upto 96 they were not restricted but how can i confirm it? as maybe the pipe is old or its just replaced from a newer bike and you will never know even if you buy a 1990 dt that the exhaust is original

dan28 · dan28

After removing the cat from an 05 dtre pipe I took it to make local scrap metal recyclers but they don't take catalytic. Converters so now I have to find some where else to take it is it worth weighing in or should I just bin it

2strokemx · 2strokemx

Hi i've just got a standard exhaust off of my mate its from an 04 dt, i know it has some restrictions so im going to take it to work this week where i can cut it open and weld it back up etc, can anyone tell me what i need to take out? cheers

stillbroke · stillbroke

as above any good ideas ?

ToySoldier · ToySoldier

so im back on the dt and sorted the power valve out last night and put my standard pipe back on and have a ingition fault so not sure what this problem is but with a restricted standard will the bike rev out? should it not want to rev out it wont go past 7k and im not sure if its the pv or pipe im thinking its elec...

dtr200691 · dtr200691

Bought a gutted standard front pipe other day put it on over my ebay pattern but lost all topend power so cut it open (as im a fabby) and still had 1 restrictor attached and over loose so took them out and stiched it back up went for a blast 2day an still felt resticted no power atall after 6k just wants me chan...

stillbroke · stillbroke

as above will it fit and also will it go into a big one silencer bikes almost back to standard! cheers

swallow · swallow

Hi - as I am going to be using my soon to be rebuilt dt125r engine in a totally different chassis, today I spent some time looking at how to re-route the exhaust around the scooter that it is going into. I have a contact in Germany who makes a variety of tuning 2T exhausts for various different bikes but most...

dtr200691 · dtr200691

Just had my ebay pattern exhaust blasted thought seens as its spare n got powercoating setup at work might give it a try. Any1 tried before or anyone know what kind of temp the down pipe gets too

dread123 · dread123

never seen them before? any difference from the standard pipe?

ringo · ringo

i had a quick look and there has not been a lot of activity on there so heres my question! having seen some of the dts that have had the pipe split to have twin end pipes .how does this work? i thought that two strokes needed the propper back presure!the polish dt thats on youtube sounds the dogs but how will i...

superted · superted

my exhaust says 3py-14610 its on a 2002 model i cut it in half to find the half moons but there was nothing in the fat part of the pipe anybody know where it is on this pipe i dont think it is the propper pipe for it

JackParker · JackParker

HI just wondering if anyone knows what gasket I need for my dt. Its a 2006 bike with a earlier front pipe on, not sure what year the pipe is off, all i no is the mountings are different than the 2006 one that should be on. Are all the gaskets the same? Also the rubber connecting pipe joining the front pipe to si...

WoZz · WoZz

- -- Edited by WoZz on Friday 12th of July 2013 01:41:19 PM

zander · zander

Sorry for making another thread, but this must be sorted out once and for all. What the **** is this thing? If it really is a restriction I will cut my exhaust again. It can be found in the front pipe behind the big cat on every bike from 2004 and forward.

NorDt · NorDt

Hey, Atm i got 2 stock pipes. And a Gianelli pipe. But no silencer for the gianelli pipe. I got a DEP silencer but it doesent fit the gianelli pipe. The dep silencer fits the stock pipe. But the stock pipe is restricted and would proboably not be too good for my 170cc. i am currently loaning a dep pipe from...

zander · zander

So I gutted my pipe today, but I'd like to know how your guys' pipe perform. Becouse I removed the big fat catalysator but I also saw there was a small piece of perforated sheet attatched around the walls inside, a bit deeper in, which I didn't remove ( was this a restriction? ). My top speed is like 130km/h...

pillphil · pillphil

What year exhausts(stock) will fit onto a 2003 dt125r? WillI have to change the whole thing if I use a different year or can I jut change the expanson chamber? Apologies if I've posted something similar elsewhere, I thought I had, but I can find it. -- Edited by pillphil on Monday 26th of March 2012 04:1...

eG x LoGiKzZ · eG x LoGiKzZ

Anyone had their standard xpanny pipe chromed? dont really feel like wasting loads of money on a dep or big one pipe be nice to see some pictures if anyone has had it done

Reef · Reef

Right, gonna be removing my xpanny soon to get it gutted, question is ive heard theres a gasket for the exhaust, does this need to be replaced when putting it back on or do i not need to? lol Cheers

fray · fray

Ive just bought a standard exhaust chamber for my dt as my dep rusted thru. The part number on my new exhaust is 3RM 00 does anyone know what year bike this exhaust is off? Thanks fray

Topic		Started By	Replies	Views	Last Post
	STICKY: De-restricting a standard exhaust (Preview) Been reading about people de-restricting their standard exhausts, with a fair few cutting them open to find nothing inside to restrict, so I thought I'd put this info I came across this week, to help those thinking of doing theirs. All pre 1999 standard exhausts have the 3MB code stamped on them, t...	NEV	3	1637	Jan 22, 2013 by dtr200691
	STICKY: DT125R STANDARD EXHAUST - PARTS BREAKDOWN (closed) (Preview) DT125R STANDARD EXHAUST[URL=http://imageshack.us/photo/my-images/196/exhaust2h.jpg/][IMG]http://img196.imageshack.us/img1...	NEV	0	1208	Jun 24, 2012 by NEV
	Standard system (Preview) Where can I find full standard system, not modified. For yr 97-98?	firdauz8	1	1380	May 23, 2014 by Calum122
	removing the cat (Preview) any tips on removing the cat I ve cut the exhaust right next to were the welds are on the cat but its not moving when you you look at the cat there it has a ring around it do I need to remove the honeycomb section from the ring leaving the ring still in the exaust or remove the ring from around the cat	dan28	4	1626	Mar 15, 2014 by zander
	how to tell if it derestricted (Preview) well so i have got 2 dtr downpipes and i know that upto 96 they were not restricted but how can i confirm it? as maybe the pipe is old or its just replaced from a newer bike and you will never know even if you buy a 1990 dt that the exhaust is original	sebamax2	4	1489	Feb 16, 2014 by sebamax2
	Who has weighed in their cat (Preview) After removing the cat from an 05 dtre pipe I took it to make local scrap metal recyclers but they don't take catalytic. Converters so now I have to find some where else to take it is it worth weighing in or should I just bin it	dan28	7	1900	Feb 15, 2014 by NEV
	How to de-restrict standard exhaust (Preview) Hi i've just got a standard exhaust off of my mate its from an 04 dt, i know it has some restrictions so im going to take it to work this week where i can cut it open and weld it back up etc, can anyone tell me what i need to take out? cheers	2strokemx	9	1996	Jul 26, 2013 by 2strokemx
	removing dents on expansion any suggestions? (Preview) as above any good ideas ?	stillbroke	10	1709	Apr 18, 2013 by MDK
	restricted standard (Preview) so im back on the dt and sorted the power valve out last night and put my standard pipe back on and have a ingition fault so not sure what this problem is but with a restricted standard will the bike rev out? should it not want to rev out it wont go past 7k and im not sure if its the pv or pipe im thinking its elec...	ToySoldier	3	1295	Apr 7, 2013 by ToySoldier
	Gutted standard but still feels restricted :s (Preview) Bought a gutted standard front pipe other day put it on over my ebay pattern but lost all topend power so cut it open (as im a fabby) and still had 1 restrictor attached and over loose so took them out and stiched it back up went for a blast 2day an still felt resticted no power atall after 6k just wants me chan...	dtr200691	25	2294	Feb 20, 2013 by Seanyftw
	does the 2005 standard xpanny fit a 2003 dtr? cheers #:) (Preview) as above will it fit and also will it go into a big one silencer bikes almost back to standard! cheers	stillbroke	1	1489	Feb 19, 2013 by eG x LoGiKzZ
	exhaust modification (Preview) Hi - as I am going to be using my soon to be rebuilt dt125r engine in a totally different chassis, today I spent some time looking at how to re-route the exhaust around the scooter that it is going into. I have a contact in Germany who makes a variety of tuning 2T exhausts for various different bikes but most...	swallow	10	1695	Jan 25, 2013 by DT-R_bradders
	Powdercoating expanny (Preview) Just had my ebay pattern exhaust blasted thought seens as its spare n got powercoating setup at work might give it a try. Any1 tried before or anyone know what kind of temp the down pipe gets too	dtr200691	7	1453	Jan 23, 2013 by the only way is YAMAHA DTR
	standard 2-part from expansion pipe (Preview) never seen them before? any difference from the standard pipe?	dread123	10	1820	Dec 29, 2012 by GADGET
	i know this should be on the exhaust section but (Preview) i had a quick look and there has not been a lot of activity on there so heres my question! having seen some of the dts that have had the pipe split to have twin end pipes .how does this work? i thought that two strokes needed the propper back presure!the polish dt thats on youtube sounds the dogs but how will i...	ringo	2	1463	Dec 17, 2012 by Harry
	where is the exhaust restrictor on my front pipe (Preview) my exhaust says 3py-14610 its on a 2002 model i cut it in half to find the half moons but there was nothing in the fat part of the pipe anybody know where it is on this pipe i dont think it is the propper pipe for it	superted	12	2034	Oct 23, 2012 by superted
	What exhaust gasket do I need? (Preview) HI just wondering if anyone knows what gasket I need for my dt. Its a 2006 bike with a earlier front pipe on, not sure what year the pipe is off, all i no is the mountings are different than the 2006 one that should be on. Are all the gaskets the same? Also the rubber connecting pipe joining the front pipe to si...	JackParker	2	1219	Sep 21, 2012 by JackParker
	Standard Silencer Price? (Preview) - -- Edited by WoZz on Friday 12th of July 2013 01:41:19 PM	WoZz	1	1322	Sep 15, 2012 by AndyYam
	Restriction or what is it? (Preview) Sorry for making another thread, but this must be sorted out once and for all. What the **** is this thing? If it really is a restriction I will cut my exhaust again. It can be found in the front pipe behind the big cat on every bike from 2004 and forward.	zander	16	2250	Aug 8, 2012 by zander
	Stock derestricted performance ? (Preview) Hey, Atm i got 2 stock pipes. And a Gianelli pipe. But no silencer for the gianelli pipe. I got a DEP silencer but it doesent fit the gianelli pipe. The dep silencer fits the stock pipe. But the stock pipe is restricted and would proboably not be too good for my 170cc. i am currently loaning a dep pipe from...	NorDt	16	2197	Jul 14, 2012 by zander
	How well does your gutted pipe perform? (Preview) So I gutted my pipe today, but I'd like to know how your guys' pipe perform. Becouse I removed the big fat catalysator but I also saw there was a small piece of perforated sheet attatched around the walls inside, a bit deeper in, which I didn't remove ( was this a restriction? ). My top speed is like 130km/h...	zander	15	2013	Jul 11, 2012 by DTR_NW
	Stock exhaust compatibility (Preview) What year exhausts(stock) will fit onto a 2003 dt125r? WillI have to change the whole thing if I use a different year or can I jut change the expanson chamber? Apologies if I've posted something similar elsewhere, I thought I had, but I can find it. -- Edited by pillphil on Monday 26th of March 2012 04:1...	pillphil	1	1426	Jul 9, 2012 by AndyYam
	Standard pipe chromed? (Preview) Anyone had their standard xpanny pipe chromed? dont really feel like wasting loads of money on a dep or big one pipe be nice to see some pictures if anyone has had it done	eG x LoGiKzZ	4	1446	Jun 26, 2012 by eG x LoGiKzZ
	Removing and putting on an RE exhaust again (Preview) Right, gonna be removing my xpanny soon to get it gutted, question is ive heard theres a gasket for the exhaust, does this need to be replaced when putting it back on or do i not need to? lol Cheers	Reef	3	1265	Jun 25, 2012 by NorDt
	3RM 00 exhaust (Preview) Ive just bought a standard exhaust chamber for my dt as my dep rusted thru. The part number on my new exhaust is 3RM 00 does anyone know what year bike this exhaust is off? Thanks fray	fray	18	2744	Jun 22, 2012 by CarlosRexx
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