DT125R ARCHIVE

gasto · gasto

http://www.youtube.com/watch?v=ePX8RYOlQq4&feature=related

gooner78 · gooner78

as above my chains just about had it and my front sprockets also on its last legs thanks

Captain Liberious · Captain Liberious

Hello there! It's been a while since I've had any actual problems with the DT, I thought I was immune to it, but this is what happens if you lend someone your bike and they take it offroading in the pouring rain. The bike starts and runs perfectly up until 7000 revs, then it starts misfiring like a bastard...

jgreco · jgreco

Hi Everyone, I'm new to this forum and Dt's for that matter! I recently bought a 2006 DT125R with 6000 miles on the clock; the bike had a thorough service just before Christmas. I took the bike out today and covered about 50 miles on it, the bike was/is running fine but when I was about 10 miles from home the...

matt rhoades · matt rhoades

Ok guys. I bought a 94 dtr 125 back in october. Im just running in after changing both engine casings and a top end en re-build. Previous owner ragged it up some dark welsh mountains n wrecked it. Love him!! I've done plenty of reading on ere and it looks like the only restriction is my std expansion can?...

macrae · macrae

Is it possible. Anyone done it. Me and my mate had a race about a mile strecth road( closed privite one of course) hes got a standard yz125 07. and by the time i overtook him i had to brake and slow down. He thought i was ridding ****, so we swapped and exactly the same. I was wondering if anyone had down it!! i...

medxb183 · medxb183

after de restricting my dtr125 after how many miles would you recomend to replace the piston rings ?

AAAthreat · AAAthreat

Last week I pulled the bike out of the garage and tried to start it, well after 15 mins it didn't start so I took the plug out and gave it a clean (the plug was clean only had some petrol on it). Plug cleaned and back in the bike it started first kick, problem solved I thought. I had np with the bike out on my run la...

bobbyacid · bobbyacid

Hi...i have decided to take apart and clean the carb on my DT 125R 1989. This is because it leaks petrol out the breather pipe that come down from the bottom of the carb(the one from the drain screw) while it sits idle, and although not that fst will empty the tank over a few days if i dont turn the fuel tap to o...

Hadley8899 · Hadley8899

What are you views on how long the DTR 125 engine lasts if it is thraped often ? ive heard they last around 10000 - 15000 miles before they need a new top end ? is this correct ? .Ryan

jasedtr · jasedtr

anyone on this site have a anthea 170 kit on there dtr????? just wondered what you think of them

supermoto1962 · supermoto1962

HelloWhich of the Guru's of the DTR can help? I have a DTR with the following markings:On the PValve side i have these:Bottom of barrel - 3BM00On crankcase - 3BN03 with Y-1 underneath On oil pump side i have this:Bottom of barrel - Y-1 On the head i have this:3BNY-2So what year please? Next the bike is as f...

alzabhoy · alzabhoy

hi everyone i am trying to put my dt125x back on the road..& i was removing the panels to repray them & noticed i cant see any wire's for indicators can anyone post a pic of where indicators connect too thanx alza

Graeme380 · Graeme380

Anybody know why my bike smokes like thomas the tank engine it never used to its had the carb cleaned and a new air filter still runs the same plenty of power although it bogs down every now and again cuts out then when you restart it its fine again for a while would be grateful for any advise.

Roger101 · Roger101

hi everyone, got a problem my bikes broken.for some reason wires from the brake switch melted badley,i have renewed but bike now wont go its a 2007 model,and wonder if anyone can shed any light on why this has happened.all the electrics now work just no spark to the plug

polsta · polsta

having read about the snorkel on here, its un-clear weather it does actualy make any difference ? in fact some posts say it gives a power loss and low and mid range ? whats your views on before and after removal ? ...does it give any power increase or not ? my snorkel is still on the bike, is it worth removin...

PaulyWalnuts · PaulyWalnuts

Something went wrong with my DT 125.Went to start my bike yesterday, I kicked it over as usual but there was a rattle coming from a little white box that sits under the rear mud guard on the opposite side to the exhaust (it also has 3 wires coming from it). The rattle finally stopped but as soon as it did the b...

Captain Liberious · Captain Liberious

Hello people. Now, I've heard about two-strokes gobbling through spark plugs, and wasn't at all surprised when my DTR started doing it, but is it normal for a bike to be picky about what type of sparkplug? The standard B9ES sparkplug will last for about 500 miles before blowing, the BR9ES (I think...

Patrick · Patrick

Hi, I've just bought a 04 DTRE, never had a bike before and my mechanical knowledge is comparable to that of a small blind child. My bike came with no manual or instructions either so I'm in a bit of a predicament. I've found the 2 stroke oil reservoir, but on the other side of the bike is a...

misterc · misterc

upon looking at the how to guides i was wondering if the power valve needs turning on the 2001 model or if it is already in the correct position and that the only restrictors are the ones mentioned. Just want to make sure before i start playing....

deany · deany

ive got a 1998 dtr125 with a bigone end can and a front dep. i have fully opened the powervalve and locked it in place by taking a gear out of the servo and doing the cables tight so it cant turn. i am only getting 60mph downhill. i was getting the same with a restricted exhaust on and i thought the new1 would im...

Pedderz · Pedderz

Basic stuff i know but i am a novice when it comes to bikes. What is the best spark plug type/make. Do people have a preference?

AAAthreat · AAAthreat

Lo lads i need some help with my DT it seems like i can only get it up to 55mph unless im going down a big hill then i can get just over 60. I have taken the restrictor out of the speedo plus i have a DEP silencer on the bike anyone got any ideas what else i can do to make it faster? The bike has only done about 2500 mil...

Pedderz · Pedderz

Hello Need a bit of help Have got a 98 DTR which is a great laugh when off roading or green laning. The only issue is that when i go through any water, no matter how small, the bike doesn't like it. It will cough and splutter and the power drops as do the revs. If i rev the hell out of it and drop it a gear after a few...

davyg1978 · davyg1978

hello to all im new here so be nice lol i bought a 1997 dt125.. and got it home and left it for a few days in my shed and now it wont start ... i took the spark plug out and its black and oily. its sparking... i dont have a clue about engines so is there anything i can check to find the problem? we put sum petrol in t...

Sub Forum	Topics	Posts	Last Post
Coolant System - Read Only Sub-forums: FAQ (Coolant System)	22	273	Aug 31, 2015 by AndyYam
De-Restricting - Read Only	18	345	Apr 1, 2014 by Victor
Athena - Read Only	13	184	Sep 26, 2014 by Calum122
2t Oil - Read Only	18	167	Oct 14, 2014 by MDK

Topic		Started By	Replies	Views	Last Post
	Tdr 125 engine rebuilt (Preview) http://www.youtube.com/watch?v=ePX8RYOlQq4&feature=related	gasto	9	298	Mar 14, 2009 by Gixergav
	what pitch are standard dtr chain and sprockets (Preview) as above my chains just about had it and my front sprockets also on its last legs thanks	gooner78	4	236	Mar 13, 2009 by gooner78
	i'll never lend anyone my bike again..... (Preview) Hello there! It's been a while since I've had any actual problems with the DT, I thought I was immune to it, but this is what happens if you lend someone your bike and they take it offroading in the pouring rain. The bike starts and runs perfectly up until 7000 revs, then it starts misfiring like a bastard...	Captain Liberious	1	250	Mar 4, 2009 by Gixergav
	2006 DT125R OVERHEATING (Preview) Hi Everyone, I'm new to this forum and Dt's for that matter! I recently bought a 2006 DT125R with 6000 miles on the clock; the bike had a thorough service just before Christmas. I took the bike out today and covered about 50 miles on it, the bike was/is running fine but when I was about 10 miles from home the...	jgreco	11	318	Mar 1, 2009 by ben350
	dtr 125 1994 (Preview) Ok guys. I bought a 94 dtr 125 back in october. Im just running in after changing both engine casings and a top end en re-build. Previous owner ragged it up some dark welsh mountains n wrecked it. Love him!! I've done plenty of reading on ere and it looks like the only restriction is my std expansion can?...	matt rhoades	21	576	Feb 27, 2009 by SimsonS51E
	YZ125 Engine Conversion (Preview) Is it possible. Anyone done it. Me and my mate had a race about a mile strecth road( closed privite one of course) hes got a standard yz125 07. and by the time i overtook him i had to brake and slow down. He thought i was ridding ****, so we swapped and exactly the same. I was wondering if anyone had down it!! i...	macrae	17	488	Feb 13, 2009 by SimsonS51E
	piston ring change (Preview) after de restricting my dtr125 after how many miles would you recomend to replace the piston rings ?	medxb183	13	389	Feb 13, 2009 by SimsonS51E
	Bogging out? ( 1 2 ) (Preview) Last week I pulled the bike out of the garage and tried to start it, well after 15 mins it didn't start so I took the plug out and gave it a clean (the plug was clean only had some petrol on it). Plug cleaned and back in the bike it started first kick, problem solved I thought. I had np with the bike out on my run la...	AAAthreat	32	774	Feb 9, 2009 by AAAthreat
	Easy or not?? (Preview) Hi...i have decided to take apart and clean the carb on my DT 125R 1989. This is because it leaks petrol out the breather pipe that come down from the bottom of the carb(the one from the drain screw) while it sits idle, and although not that fst will empty the tank over a few days if i dont turn the fuel tap to o...	bobbyacid	27	698	Jan 15, 2009 by SimsonS51E
	Im sure everyone would like to know how long a thraped dtr125 engine lasts (Preview) What are you views on how long the DTR 125 engine lasts if it is thraped often ? ive heard they last around 10000 - 15000 miles before they need a new top end ? is this correct ? .Ryan	Hadley8899	18	441	Jan 12, 2009 by Seiki
	anthea kits (Preview) anyone on this site have a anthea 170 kit on there dtr????? just wondered what you think of them	jasedtr	11	279	Jan 3, 2009 by pea
	Settings and info needed for off-road DTR race bike (Preview) HelloWhich of the Guru's of the DTR can help? I have a DTR with the following markings:On the PValve side i have these:Bottom of barrel - 3BM00On crankcase - 3BN03 with Y-1 underneath On oil pump side i have this:Bottom of barrel - Y-1 On the head i have this:3BNY-2So what year please? Next the bike is as f...	supermoto1962	15	604	Dec 19, 2008 by Gixergav
	how do i wire up indicators too my dt125x (Preview) hi everyone i am trying to put my dt125x back on the road..& i was removing the panels to repray them & noticed i cant see any wire's for indicators can anyone post a pic of where indicators connect too thanx alza	alzabhoy	26	467	Nov 3, 2008 by Captain Liberious
	Smokey dt (Preview) Anybody know why my bike smokes like thomas the tank engine it never used to its had the carb cleaned and a new air filter still runs the same plenty of power although it bogs down every now and again cuts out then when you restart it its fine again for a while would be grateful for any advise.	Graeme380	3	245	Sep 10, 2008 by Gixergav
	melted wires (Preview) hi everyone, got a problem my bikes broken.for some reason wires from the brake switch melted badley,i have renewed but bike now wont go its a 2007 model,and wonder if anyone can shed any light on why this has happened.all the electrics now work just no spark to the plug	Roger101	8	233	Aug 28, 2008 by darkangel
	Snorkel removal fact or fiction ? and bottle mod ? (Preview) having read about the snorkel on here, its un-clear weather it does actualy make any difference ? in fact some posts say it gives a power loss and low and mid range ? whats your views on before and after removal ? ...does it give any power increase or not ? my snorkel is still on the bike, is it worth removin...	polsta	8	340	Aug 6, 2008 by Gixergav
	My DT had a ratttle now lost power!!!!! (Preview) Something went wrong with my DT 125.Went to start my bike yesterday, I kicked it over as usual but there was a rattle coming from a little white box that sits under the rear mud guard on the opposite side to the exhaust (it also has 3 wires coming from it). The rattle finally stopped but as soon as it did the b...	PaulyWalnuts	25	435	Aug 4, 2008 by polsta
	Picky about spark plugs? (Preview) Hello people. Now, I've heard about two-strokes gobbling through spark plugs, and wasn't at all surprised when my DTR started doing it, but is it normal for a bike to be picky about what type of sparkplug? The standard B9ES sparkplug will last for about 500 miles before blowing, the BR9ES (I think...	Captain Liberious	10	355	Jul 30, 2008 by Captain Liberious
	Coolant? (Preview) Hi, I've just bought a 04 DTRE, never had a bike before and my mechanical knowledge is comparable to that of a small blind child. My bike came with no manual or instructions either so I'm in a bit of a predicament. I've found the 2 stroke oil reservoir, but on the other side of the bike is a...	Patrick	10	445	Jul 30, 2008 by Greg
	derestricting 2001 bike (Preview) upon looking at the how to guides i was wondering if the power valve needs turning on the 2001 model or if it is already in the correct position and that the only restrictors are the ones mentioned. Just want to make sure before i start playing....	misterc	10	342	Jul 30, 2008 by Jsy Ben
	something not right (Preview) ive got a 1998 dtr125 with a bigone end can and a front dep. i have fully opened the powervalve and locked it in place by taking a gear out of the servo and doing the cables tight so it cant turn. i am only getting 60mph downhill. i was getting the same with a restricted exhaust on and i thought the new1 would im...	deany	25	507	May 28, 2008 by polsta
	Which Spark Plug? (Preview) Basic stuff i know but i am a novice when it comes to bikes. What is the best spark plug type/make. Do people have a preference?	Pedderz	15	382	May 22, 2008 by syks
	01 DTR 55mph??? (Preview) Lo lads i need some help with my DT it seems like i can only get it up to 55mph unless im going down a big hill then i can get just over 60. I have taken the restrictor out of the speedo plus i have a DEP silencer on the bike anyone got any ideas what else i can do to make it faster? The bike has only done about 2500 mil...	AAAthreat	15	368	Apr 17, 2008 by Pedderz
	1998 DTR - Doesn't like water (Preview) Hello Need a bit of help Have got a 98 DTR which is a great laugh when off roading or green laning. The only issue is that when i go through any water, no matter how small, the bike doesn't like it. It will cough and splutter and the power drops as do the revs. If i rev the hell out of it and drop it a gear after a few...	Pedderz	14	296	Mar 20, 2008 by Raw_Force
	1997 dt125 wont start (Preview) hello to all im new here so be nice lol i bought a 1997 dt125.. and got it home and left it for a few days in my shed and now it wont start ... i took the spark plug out and its black and oily. its sparking... i dont have a clue about engines so is there anything i can check to find the problem? we put sum petrol in t...	davyg1978	10	271	Feb 3, 2008 by mushty111
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