DT125R ARCHIVE

DTPOWER · DTPOWER

my friend has a 2001 yamaha that sounds different than my 1998 yamaha and i wonder if they put different engines in the newer models? i know that the 2004 and up models had more HP but i wanna know the difference between the 1998 models and the newer/older ones

gmars70970 · gmars70970

Hi all, Looking for advice on a DT125 i've bought. The bike kick starts 1st time everytime revs up perfectly then ticks over nicely But......when you put the bike under load it starts to pull then just loses all power pull the clutch in and it starts to rev or idle perfectly. I've removed the carb & c...

dtrdave · dtrdave

Slight problem! My engine kinda blew up today.Had to push it 2 miles back home Pics : [IMG]https://i1...

craigbulmer · craigbulmer

i pinned the powervalve on my bike open, **** me its quick lol, wants to pick up by itself in first second and maybe in third, but it cant keep a steady speed, now i no from this that my powervalve wasnt set up right, has anyone got a guide of how to do it properly?? or is it in the haynes manual? ive not got one bt...

snail trail · snail trail

can anyone tell me how to pin a power valve half open, fully open i have no bottom end will i have bottom end with it half open. thanks for any help.

M6NTL · M6NTL

Hi Everyone,My name is Mark, I have just bought a 1995 TDR125 for my son as his first bike (he will be 17 soon and I want to get him used to a clutch and manual gears before his CBT).The bike is basically sound (I think!), but I have some carb questions - I hope you don't mind me asking on my first post!!! In the p...

Mauser · Mauser

Sorry to jump almost straight in with problems, but could do with some idea's on why the bike runs so rough. This Power Valve thingy which mine doesn't have either a servo or cable operation seems to spin around and around forever ?, now I am not fused about max speed but would like the bike to run as it migh...

jediknight · jediknight

Hi chaps,new to bikes.bought 4 months ago a french import 2001 dt125r with only 400 miles on clock.really getting in to biking now .2000 miles later wanting a bit more power .going to need some advice soon ,hope u can help .regards paul -- Edited by Seiki on Tuesday 20th of October 2009 08:19:49 PM

kasper · kasper

would it b worht doin this to my dtx? if any 1 has it how much better is the bike

.... · ....

hello to all thought id help anyone who may be wanting to change their jets at any point first take carb out of bike by undoing the 2 jubilee clips(1 either side) 1 attaches the carb to the airbox,the other to the inlet rubber where the reeds are now the carb is free unscrew the 2 screws on the top of carb(if t...

darkangel · darkangel

This is a good thing to do if you have a spare hour or if you have the bike in pieces for a top end anyway. Pros: Faster acceleration, more of a powerband 'hit', easier to wheelie, sounds much better in the powerband Cons: It takes 10 miles off ur tank range, it takes more skill to ride the bike, the bike will p...

DTPOWER · DTPOWER

when at idle i can hear a rattling sound and i know that someone had this problem before i can't figure out where it might be coming from sounds like it's coming from the cylinder area can anyone tell me what it is? bc it's driving me nuts! oh and i forgot to add that the bike only has about 6000 miles on the cl...

dt 125 USD · dt 125 USD

http://img186.imageshack.us/img186/2457/dsc01780g.jpg

carl13671 · carl13671

I been having problems today and cant seem to get the cables in place correctly on the servo. What would really help me is if somebody has a photo or explain how the cables locate on the servo pulley as i just cant get the valve to operate,it either jams the servo being to tight or the cables jump of the pul...

carl13671 · carl13671

Not been out much since buying the bike,it had a few problems overheating and loads of smoke all of which pointed at the head gasket. I have replaced this 2 weeks ago and been on a few short rides since but tonight was my first proper ride out of about 20 mile. And i leathered it topping out at about 70mph. T...

Soleconsumer · Soleconsumer

Hey all i have some problems with the power of my bike. DTR125 2000 Model Mods done so far: Rear DEP Gutted front pipe (supposedly, im not sure if the garage i took it to actually did it) Inlet manifold Airbottle taped up Reed switch in speedo moved Upjetted (i forget the jet i used, it was one that was recco...

craigbulmer · craigbulmer

https://s881.photobucket.com/albums/ac14/craigbulmer/?action=view&current=PowerValve.flv

DTPOWER · DTPOWER

hi my yamaha is registered as a 9kw motorcycle and i would like to squeeze some more power out of the engine. a 125cc motorcycle can only produce up to 14.75 hp to be leagal in this darn country my bike has about 12 hp at the moment my friends dt has about 13 or 14 and it's freaking fast!!! my bike is a Yamaha dt...

delboy · delboy

****ing hell just put my std jet bk in my carb she flys lol think need new pair of boxers

RudiRulez · RudiRulez

https://s83.photobucket.com/albums/j312/Rudi1992/?action=view&current=MOV00267.flv

craigbulmer · craigbulmer

What happens when you open it..how does the bike behave in the lower revvs?how bad does the MPG get?is it still as easy to pull off and ride?thanks for any replies, want the bike faster so i want to open it but not sure if i should lolcraig

Hi all new member · carl13671

Hi everyone I have recently bought a 2005 dt125 and after a 2 weeks sick with a knee operation im now starting to do bits on my bike ready to start riding it,but im noticing problems with it. Ive listed below some of the things ive come across already im just hoping ive not bought a pig. Problem 1, Engine is...

craigbulmer · craigbulmer

i have a really bad 2t leak!coming from bottom of the engine, lost 1/2 a litre in 3 days!tank is now nearly empty!what could have gone wrong?crank seals?

motor crazy · motor crazy

hi all. does anyone know the correct oil petol ratio for my 2003 dt125r. i bought it the other day ,and there is no oil tank on it. will put petrol mix into tank but dont know how much oil to add. cheers motor crazy.

neil · neil

can any of u old boys redline ur dtrs i cant bike stops at the start of red lol

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Topic		Started By	Replies	Views	Last Post
	did yamaha change engines in the newer dt 125 models? (Preview) my friend has a 2001 yamaha that sounds different than my 1998 yamaha and i wonder if they put different engines in the newer models? i know that the 2004 and up models had more HP but i wanna know the difference between the 1998 models and the newer/older ones	DTPOWER	9	1582	Dec 13, 2009 by ashweeboi
	no pulling power??? (Preview) Hi all, Looking for advice on a DT125 i've bought. The bike kick starts 1st time everytime revs up perfectly then ticks over nicely But......when you put the bike under load it starts to pull then just loses all power pull the clutch in and it starts to rev or idle perfectly. I've removed the carb & c...	gmars70970	16	375	Dec 1, 2009 by gmars70970
	OOPS! (Preview) Slight problem! My engine kinda blew up today.Had to push it 2 miles back home Pics : [IMG]https://i1...	dtrdave	21	328	Nov 23, 2009 by dtrdave
	My powervalve (Preview) i pinned the powervalve on my bike open, **** me its quick lol, wants to pick up by itself in first second and maybe in third, but it cant keep a steady speed, now i no from this that my powervalve wasnt set up right, has anyone got a guide of how to do it properly?? or is it in the haynes manual? ive not got one bt...	craigbulmer	17	452	Nov 10, 2009 by craigbulmer
	powervalve half open (Preview) can anyone tell me how to pin a power valve half open, fully open i have no bottom end will i have bottom end with it half open. thanks for any help.	snail trail	8	313	Nov 8, 2009 by snail trail
	Carb Questions (Preview) Hi Everyone,My name is Mark, I have just bought a 1995 TDR125 for my son as his first bike (he will be 17 soon and I want to get him used to a clutch and manual gears before his CBT).The bike is basically sound (I think!), but I have some carb questions - I hope you don't mind me asking on my first post!!! In the p...	M6NTL	10	329	Oct 29, 2009 by punto gt3
	Any Pointers Running Terrible (Preview) Sorry to jump almost straight in with problems, but could do with some idea's on why the bike runs so rough. This Power Valve thingy which mine doesn't have either a servo or cable operation seems to spin around and around forever ?, now I am not fused about max speed but would like the bike to run as it migh...	Mauser	11	260	Oct 28, 2009 by Mauser
	New to bikes ( few engine questions ) ( 1 2 ) (Preview) Hi chaps,new to bikes.bought 4 months ago a french import 2001 dt125r with only 400 miles on clock.really getting in to biking now .2000 miles later wanting a bit more power .going to need some advice soon ,hope u can help .regards paul -- Edited by Seiki on Tuesday 20th of October 2009 08:19:49 PM	jediknight	35	713	Oct 26, 2009 by jediknight
	dtx 125 170cc CYLINDER KIT (Preview) would it b worht doin this to my dtx? if any 1 has it how much better is the bike	kasper	17	543	Oct 18, 2009 by dt 125 USD
	changing jets on a flatslide carb (closed) (Preview) hello to all thought id help anyone who may be wanting to change their jets at any point first take carb out of bike by undoing the 2 jubilee clips(1 either side) 1 attaches the carb to the airbox,the other to the inlet rubber where the reeds are now the carb is free unscrew the 2 screws on the top of carb(if t...	....	0	486	Oct 16, 2009 by ....
	How to mechanically disable the powervalve servo (closed) (Preview) This is a good thing to do if you have a spare hour or if you have the bike in pieces for a top end anyway. Pros: Faster acceleration, more of a powerband 'hit', easier to wheelie, sounds much better in the powerband Cons: It takes 10 miles off ur tank range, it takes more skill to ride the bike, the bike will p...	darkangel	2	984	Oct 12, 2009 by element
	rattling sound (Preview) when at idle i can hear a rattling sound and i know that someone had this problem before i can't figure out where it might be coming from sounds like it's coming from the cylinder area can anyone tell me what it is? bc it's driving me nuts! oh and i forgot to add that the bike only has about 6000 miles on the cl...	DTPOWER	12	948	Oct 6, 2009 by ....
	Porting 3MB00 > 30 horsepower (Preview) http://img186.imageshack.us/img186/2457/dsc01780g.jpg	dt 125 USD	8	806	Sep 24, 2009 by satelliteone
	Power valve help (Preview) I been having problems today and cant seem to get the cables in place correctly on the servo. What would really help me is if somebody has a photo or explain how the cables locate on the servo pulley as i just cant get the valve to operate,it either jams the servo being to tight or the cables jump of the pul...	carl13671	12	484	Sep 20, 2009 by carl13671
	OVERHEATING PROBLEM?? (Preview) Not been out much since buying the bike,it had a few problems overheating and loads of smoke all of which pointed at the head gasket. I have replaced this 2 weeks ago and been on a few short rides since but tonight was my first proper ride out of about 20 mile. And i leathered it topping out at about 70mph. T...	carl13671	14	969	Sep 16, 2009 by carl13671
	Getting my bike running right (in depth help needed) ( 1 2 ) (Preview) Hey all i have some problems with the power of my bike. DTR125 2000 Model Mods done so far: Rear DEP Gutted front pipe (supposedly, im not sure if the garage i took it to actually did it) Inlet manifold Airbottle taped up Reed switch in speedo moved Upjetted (i forget the jet i used, it was one that was recco...	Soleconsumer	32	904	Sep 14, 2009 by craigbulmer
	is my powervalve working right? (Preview) https://s881.photobucket.com/albums/ac14/craigbulmer/?action=view&current=PowerValve.flv	craigbulmer	13	418	Sep 7, 2009 by PatMan
	9 kw (12 hp) how can i get my bike to at least 11kw or 14 hp? (Preview) hi my yamaha is registered as a 9kw motorcycle and i would like to squeeze some more power out of the engine. a 125cc motorcycle can only produce up to 14.75 hp to be leagal in this darn country my bike has about 12 hp at the moment my friends dt has about 13 or 14 and it's freaking fast!!! my bike is a Yamaha dt...	DTPOWER	19	643	Sep 5, 2009 by Crana
	std jetting with a dep pipe (Preview) ****ing hell just put my std jet bk in my carb she flys lol think need new pair of boxers	delboy	8	369	Aug 24, 2009 by craigbulmer
	Misfiring and Spitting Flames? *with video* (Preview) https://s83.photobucket.com/albums/j312/Rudi1992/?action=view&current=MOV00267.flv	RudiRulez	6	286	Aug 21, 2009 by ....
	What happens when you open the power valve? (Preview) What happens when you open it..how does the bike behave in the lower revvs?how bad does the MPG get?is it still as easy to pull off and ride?thanks for any replies, want the bike faster so i want to open it but not sure if i should lolcraig	craigbulmer	9	370	Aug 20, 2009 by Jonpearson17
	Hi all new member ( 1 2 ) (Preview) Hi everyone I have recently bought a 2005 dt125 and after a 2 weeks sick with a knee operation im now starting to do bits on my bike ready to start riding it,but im noticing problems with it. Ive listed below some of the things ive come across already im just hoping ive not bought a pig. Problem 1, Engine is...	carl13671	34	692	Aug 19, 2009 by Soleconsumer
	2 stroke leak! (Preview) i have a really bad 2t leak!coming from bottom of the engine, lost 1/2 a litre in 3 days!tank is now nearly empty!what could have gone wrong?crank seals?	craigbulmer	7	247	Aug 16, 2009 by craigbulmer
	oil mixture (Preview) hi all. does anyone know the correct oil petol ratio for my 2003 dt125r. i bought it the other day ,and there is no oil tank on it. will put petrol mix into tank but dont know how much oil to add. cheers motor crazy.	motor crazy	25	4062	Jul 23, 2009 by Loginanda
	red lineing (Preview) can any of u old boys redline ur dtrs i cant bike stops at the start of red lol	neil	11	314	Jul 18, 2009 by PatMan
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