DT125R ARCHIVE

richie · richie

can anyone tell me what size sprockets there running on there dt and how they are finding it as i want to play with my sprockets to find sweet spot but just want to see what everyone else runs cheers richie

richie · richie

couple of studs have snaped when taking head off is it a case of game over now and new engine needed any advice please dont know what to do now guys

Dewi Davies · Dewi Davies

I just had a chat with some biker fanatic, and he said i could put a boost bottle and a read volve? (i think thats how its spelt) onto a dt125 but i've looked on ebay and can't find nothing, can anybody help me with this? I really want to tune my bike alot more.. -- Edited by Dewi Davies on Monday 3rd of October 2...

jayjay · jayjay

When i went to my garage I asked about havin a servo put back on but the bloke said I dont need one of them it tames them down and lose alot of power!! I was like yeah but I dont have any power in the bottem end unless Im in the band all the time. So while the garage think its better havin it pegged open am i wrong in t...

rob patton · rob patton

dint know the ktm lc2 1999 used a dt engine wonder if the is any tuning goodeys out there hidden way :D

johndahon94 · johndahon94

hello i am makeing my dt125r 1989 road legal, is there any parts you would recomend buying any cheap tuneing you would recomend also what size sprockets and colours do you guys think what chain,speedo,key system,tyers,air filter and where to set the manual PV,electric system. also does anyone know...

Ifitdontworkillburnit · Ifitdontworkillburnit

Ok so for those of you without a powervave servo setup ( 3BN owners) the usual drill here is to wind the PV round 180deg clockwise, giving you a kick up the arse at 6krpm and absolutely nothing below it. I didnt like riding the bike like that around town so i wound it back to its factory position which meant s...

sheldonherron · sheldonherron

ive just had a full engine rebuild done a week ago and started to run it ive done 100 miles at 30 mph and another 100 starting to take the speed up to 40 -50mph but in a higher gear than normal not hitting the power band ive been told to run it in for 500 miles at 30mph i cant see my self doing that :L any one els...

carl13671 · carl13671

Didnt know where to put this one. Im struggling to find a headlight for this cowl.The cowl was fitted to a 2006 DTX.Ive got a headlight for a RE but it no where near fits. Any help,, cheers

the only way is YAMAHA DTR · the only way is YAMAHA DTR

http://www.geiwiz.de/en/cylinder-1013/cylinders-accessories-262/motorbike-287/cylinder-kits-searching-by-pictures-1352/125cc-1358/cylinder-yamaha-4dl00-newly-coated-in-exchange-33797.html

rob patton · rob patton

help please ! just got a tzr engine (electric start and kick start) only bad thing it it dint come with the stator and the outer half of the flywheel but it did come with the iner bit see pic i was wondering if the stator and outer fly wheel would fit off my dt engine (just kickstart)

malone · malone

Hi I have recently bought a dt 125 lc2 ,1987.I used to have one of these when they came out new (showin me age now!).The power valve mod then was to reset it fully open,this was before the power vavle was controlled by a servo. Is it poss to put a servo on this year and if so what wires am I lookin for, there are a...

dirtpoor · dirtpoor

what is the id on the bigger hoses on a dt are thay 18mm 22mm or 25mm i cant seem to find out.? thanks

DT-X-Rudie · DT-X-Rudie

hey all, ive got a 2005 dtx and my starter motor has gone....been bump starting it for about 4 weeks now as i dont want to shell out 250 for a new starter motor from yamaha.... so i want to convert to kickstart.... just need a little advice basically.. is this what i need? (option 1 'KICK AXLE ASSY') £42.1...

jayjay · jayjay

hi im lookin for information on fitting a new clutch cable as mine snaped at the leaver.. could any help plz

Supermoto hero · Supermoto hero

Hello chaps I've got a 2007 dtx I've heard of I fit a full dep system I'll have to have the carbs jetted us this true bike is pretty standard apart from a Lamborghini blue and gloss back paint job would like to fit dep pipe but would rather keep standard jetting.

dirtpoor · dirtpoor

ok i am truly confused a std jet size for a 125cc is 210 then wen you fit a dep or mod the air box you go up maybe to a 240. but the std size for mine is a 150 i thout this was wrong (but it isnt) so i put in a 290 jet. but was told that would be to big and was given a 180 to try but the hole in the 180 is twice the size of the 2...

garytee · garytee

Right lads, first off, I've done a search and can't find an answer so apologies if this question has been asked before. Can you connect a 5 wire power valve servo to a 3 wire system? If so then how? I've been looking for a servo & gubbins for a while and the 3 wire ones are like rocking horse sh!t. Thanks i...

jamesie · jamesie

Hello to everyone, Please please can someone help, I have just bought my first bike, a dt125r from 2002. it was needing some work which I am doing myself( slowly with the help of a haynes) My problem started when I droped the throttle needle changing the cable, ( more money) anyway I cant seem to find one....

Dewi Davies · Dewi Davies

owned the bike for about 2 months now, within a week i blew the engine, had it rebuilt done about 400 miles on it then started going faster to check if its all working good top end, and it blew. Engine is now rebuilt again, with a bigger carb and has been re jetted, took it up to speed again roughly 65mph held i...

zombie · zombie

Hi all, I've registered today as my son has a fault with his 2004 dt125r . He's had it a few months and all was well, then after riding home one night without any problems he parked it in the garage. Next morning it would not start. I checked the plug which was not wet and has very good spark. Checked compress...

dirtpoor · dirtpoor

has any 1 cut out the back of the air filter plate to alow more air throu coz it seem like a dam small hole to me.

NorthEast · NorthEast

Can anyone recommend a good air Filter? I would need one that fits straight to carb as i plan on removing airbox and having a custom battery box to enable me to fix a DTR Exhaust. I'm not looking for performance gains tbh just something small and good in gay weather since i live by the sea.

NorthEast · NorthEast

So bike has no exhaust ATM hopefully the garage get it welded today. So in first even with clutch in bike wont move when pushed. Possible thick oil? If i stick it in 2nd or any other gear even let clutch out bike moves freely? What would cause this?

richie · richie

can anyone reconmend size sprokets to use am running a 15 tooth front at the moment not sure on the back think its just standard that comes with the bike as i was runing a 16 tooth front spocket but founf it boged down in 6th gear now it screams its head off in 6th and i have to change gear so quickly with 15 toot...

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Topic		Started By	Replies	Views	Last Post
	gearing (Preview) can anyone tell me what size sprockets there running on there dt and how they are finding it as i want to play with my sprockets to find sweet spot but just want to see what everyone else runs cheers richie	richie	12	246	Oct 7, 2011 by CooS
	help engine (Preview) couple of studs have snaped when taking head off is it a case of game over now and new engine needed any advice please dont know what to do now guys	richie	3	175	Oct 5, 2011 by DangerousDave87
	boost bottle and read volve? (Preview) I just had a chat with some biker fanatic, and he said i could put a boost bottle and a read volve? (i think thats how its spelt) onto a dt125 but i've looked on ebay and can't find nothing, can anybody help me with this? I really want to tune my bike alot more.. -- Edited by Dewi Davies on Monday 3rd of October 2...	Dewi Davies	7	192	Oct 4, 2011 by CooS
	Pegged open or buy a servo (Preview) When i went to my garage I asked about havin a servo put back on but the bloke said I dont need one of them it tames them down and lose alot of power!! I was like yeah but I dont have any power in the bottem end unless Im in the band all the time. So while the garage think its better havin it pegged open am i wrong in t...	jayjay	8	243	Oct 3, 2011 by Ifitdontworkillburnit
	KTM LC2 1999 (Preview) dint know the ktm lc2 1999 used a dt engine wonder if the is any tuning goodeys out there hidden way :D	rob patton	2	386	Oct 3, 2011 by NorthEast
	89 DT 125R being made road legal (Preview) hello i am makeing my dt125r 1989 road legal, is there any parts you would recomend buying any cheap tuneing you would recomend also what size sprockets and colours do you guys think what chain,speedo,key system,tyers,air filter and where to set the manual PV,electric system. also does anyone know...	johndahon94	3	195	Oct 2, 2011 by SUPERSTEVE
	For all with a Manual Powervalve - 88/89 only (Preview) Ok so for those of you without a powervave servo setup ( 3BN owners) the usual drill here is to wind the PV round 180deg clockwise, giving you a kick up the arse at 6krpm and absolutely nothing below it. I didnt like riding the bike like that around town so i wound it back to its factory position which meant s...	Ifitdontworkillburnit	7	208	Oct 1, 2011 by Ifitdontworkillburnit
	running in (Preview) ive just had a full engine rebuild done a week ago and started to run it ive done 100 miles at 30 mph and another 100 starting to take the speed up to 40 -50mph but in a higher gear than normal not hitting the power band ive been told to run it in for 500 miles at 30mph i cant see my self doing that :L any one els...	sheldonherron	9	239	Sep 30, 2011 by jayjay
	Can anyone id this cowl??? (Preview) Didnt know where to put this one. Im struggling to find a headlight for this cowl.The cowl was fitted to a 2006 DTX.Ive got a headlight for a RE but it no where near fits. Any help,, cheers	carl13671	2	176	Sep 27, 2011 by carl13671
	4DL00 zylinders? (Preview) http://www.geiwiz.de/en/cylinder-1013/cylinders-accessories-262/motorbike-287/cylinder-kits-searching-by-pictures-1352/125cc-1358/cylinder-yamaha-4dl00-newly-coated-in-exchange-33797.html	the only way is YAMAHA DTR	12	938	Sep 27, 2011 by satelliteone
	tzr engine (Preview) help please ! just got a tzr engine (electric start and kick start) only bad thing it it dint come with the stator and the outer half of the flywheel but it did come with the iner bit see pic i was wondering if the stator and outer fly wheel would fit off my dt engine (just kickstart)	rob patton	3	209	Sep 27, 2011 by satelliteone
	Power valve (Preview) Hi I have recently bought a dt 125 lc2 ,1987.I used to have one of these when they came out new (showin me age now!).The power valve mod then was to reset it fully open,this was before the power vavle was controlled by a servo. Is it poss to put a servo on this year and if so what wires am I lookin for, there are a...	malone	4	232	Sep 25, 2011 by fuggie
	rad pipes any 1 know what size? (Preview) what is the id on the bigger hoses on a dt are thay 18mm 22mm or 25mm i cant seem to find out.? thanks	dirtpoor	1	168	Sep 24, 2011 by browny1989
	KickStart Question....Again (Preview) hey all, ive got a 2005 dtx and my starter motor has gone....been bump starting it for about 4 weeks now as i dont want to shell out 250 for a new starter motor from yamaha.... so i want to convert to kickstart.... just need a little advice basically.. is this what i need? (option 1 'KICK AXLE ASSY') £42.1...	DT-X-Rudie	2	168	Sep 23, 2011 by DT-X-Rudie
	how to fit a new clutch cable?? (Preview) hi im lookin for information on fitting a new clutch cable as mine snaped at the leaver.. could any help plz	jayjay	3	164	Sep 23, 2011 by plebpl
	Dt 125 x exhaust (Preview) Hello chaps I've got a 2007 dtx I've heard of I fit a full dep system I'll have to have the carbs jetted us this true bike is pretty standard apart from a Lamborghini blue and gloss back paint job would like to fit dep pipe but would rather keep standard jetting.	Supermoto hero	4	197	Sep 20, 2011 by Supermoto hero
	sorry more jeting questions (Preview) ok i am truly confused a std jet size for a 125cc is 210 then wen you fit a dep or mod the air box you go up maybe to a 240. but the std size for mine is a 150 i thout this was wrong (but it isnt) so i put in a 290 jet. but was told that would be to big and was given a 180 to try but the hole in the 180 is twice the size of the 2...	dirtpoor	4	178	Sep 19, 2011 by dirtpoor
	Power valve servo wiring (Preview) Right lads, first off, I've done a search and can't find an answer so apologies if this question has been asked before. Can you connect a 5 wire power valve servo to a 3 wire system? If so then how? I've been looking for a servo & gubbins for a while and the 3 wire ones are like rocking horse sh!t. Thanks i...	garytee	1	156	Sep 19, 2011 by Dingle001
	carb problems (Preview) Hello to everyone, Please please can someone help, I have just bought my first bike, a dt125r from 2002. it was needing some work which I am doing myself( slowly with the help of a haynes) My problem started when I droped the throttle needle changing the cable, ( more money) anyway I cant seem to find one....	jamesie	9	294	Sep 18, 2011 by PatMan
	Problems with my top end speed, pistons always blow (Preview) owned the bike for about 2 months now, within a week i blew the engine, had it rebuilt done about 400 miles on it then started going faster to check if its all working good top end, and it blew. Engine is now rebuilt again, with a bigger carb and has been re jetted, took it up to speed again roughly 65mph held i...	Dewi Davies	21	303	Sep 17, 2011 by creamsodauk
	no fuel fault (Preview) Hi all, I've registered today as my son has a fault with his 2004 dt125r . He's had it a few months and all was well, then after riding home one night without any problems he parked it in the garage. Next morning it would not start. I checked the plug which was not wet and has very good spark. Checked compress...	zombie	10	213	Sep 17, 2011 by fuggie
	air box mods (Preview) has any 1 cut out the back of the air filter plate to alow more air throu coz it seem like a dam small hole to me.	dirtpoor	29	401	Sep 16, 2011 by dirtpoor
	Air Filters (Preview) Can anyone recommend a good air Filter? I would need one that fits straight to carb as i plan on removing airbox and having a custom battery box to enable me to fix a DTR Exhaust. I'm not looking for performance gains tbh just something small and good in gay weather since i live by the sea.	NorthEast	3	179	Sep 16, 2011 by plebpl
	Pushing bike in gear? (Preview) So bike has no exhaust ATM hopefully the garage get it welded today. So in first even with clutch in bike wont move when pushed. Possible thick oil? If i stick it in 2nd or any other gear even let clutch out bike moves freely? What would cause this?	NorthEast	4	194	Sep 15, 2011 by NorthEast
	gearing (Preview) can anyone reconmend size sprokets to use am running a 15 tooth front at the moment not sure on the back think its just standard that comes with the bike as i was runing a 16 tooth front spocket but founf it boged down in 6th gear now it screams its head off in 6th and i have to change gear so quickly with 15 toot...	richie	4	156	Sep 15, 2011 by PatMan
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