DT125R ARCHIVE

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

hi, i have a 240 main jet so is that 2.4mm because that sounds massive i thought it would be about 1.2mm

Darren · Darren

does anyone know if i could fit a tzr flywheel with the starter cluch onto a dtre bottom end?? what im trying to do is get the lights running on my bike. its running a 2006 dtre engine on a 1992 wiring loom and cdi atm. anyone know if the older tzr flywheel would fit. this one on ebay for example. http://cgi.e...

medxb183 · medxb183

any ideas on cause ?

PatMan · PatMan

I know this may sound alittle stupid question but does anyone know what connector to use on this temperture sensor (pic below) as its a different top to the one I have on at the moment which needs changing Thanks lads!!!!!

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

does any one know for sure that the dt200 and wr200 crankcases are the same as the 125?

stiffla123 · stiffla123

(before i done this bike run perfect in every gear and was not running to much petrol to oil how ever now the bike is running a lot of petrol to oil) the problem first started after i found out my head gasket went ( 2 stroke in radiator). so i changed head gasket and got the bike running at first the bike was...

medxb183 · medxb183

first outing on the dt in almost 12months,50 sodding miles from home sudden loss of power,thought i was going onto reserve,little bit of noise from engine,nothing dramatic,still loss of power,stopped the bike,wouldnt start again.....no compression....any thoughts ? piston ring perhaps...t...

dtrdave · dtrdave

Met this lad a few day's ago near the local bike shops who was trying to figure out how to fit a new clutch cable so i fitted that and give him my number to ring me if he needed anything doing. I told him at the time his engine was sounding a bit rough and to get it looked at. So he rang me this afternoon telling me h...

TommyC · TommyC

Hey I'm Tom, this is my first post on here...Lil nervous...hahaha. I have a 1991 DT125R which I have been using as an MX bike (So no lights, clocks etc) Having left a running bike for a couple of months it now will not run. The problem is this: The plug will only spark when I kick it over and wont continue to sp...

gooner78 · gooner78

as title says it makes like a rumbling noise at the moment it stops as soon as the clutch lever in its done nearly 18500miles on the same clutch it still works ok the clutch does not slip at all buts its annoying what would you recommend thanks -- Edited by gooner78 on Monday 25th of April 2011 05:14:39 PM

hsmith · hsmith

Had a quick look on google to no avail, anyone know if you can pin the power valve on the 2002 model and any guidelines would be appreciated :) Henry

NEV · NEV

Does anybody know if I'm flogging a dead horse here, is that part of the engine casing? or are they meant to drift out? I've taken out the pieces that were left off the swingarm bush after I chopped it off. (see picture)cheers in advance,Nev

jayjay · jayjay

Hi i got my piston and barrel back thrusday and was gonna fit it all back on today but was stoped when i couldnt get the top ring in the piston groove its like the groove is too small half way round the piston so i cant push the piston together like i can with the bottem one.. the bottem one is too big to go in the t...

Chicco · Chicco

Hello guy's Im new in here. Im far from you all-in Latvia and I just registered ;) Ok-here's my problem: I have a DT125,year 1999 and it goes only for 90 km/h. And no faster :/ From 0-89 it goes all OK,bet when it reach'es 90 km/h -It don't go any faster...(As against the wall ;D) I just hate it :/ Can anyone h...

jayjay · jayjay

I need some info.. Ive got the topend off my bike and had the piston sent and barrel sent to some boke that lives a few mins away. he dose cranks. He was saying to me to cheack the crank for play? ok so ive just got home and had an little feel with the conrod and it's got a little movement from side to side, about p...

Jack Shuker · Jack Shuker

I need to replace my gasket, iv got the gasket here and am very capable of doing most things to a bike myself, but as im new to DTs would anyone like to explain how to do it, just so i dont mess up =)

Sgt-syphilis · Sgt-syphilis

Ok so clutch cable snapped...ordered a new one, but it's too short??! When it's all connected (properly like the one before) it is too tight, the clutch is engaged when I'm not even touching the lever! Do dtx's have a different clutch cable to other dts? If so...WTF lol. Thought about taking off crank c...

john01 · john01

hi please can somone help me. i dont have a manual for my 97 dt125r and it needs a top end rebuild please could some one give me a step by step guide. also i just bourght a pwervalve servo and all the fittings and pullys.( it works) nealy new £35:) thanks.

Jack Shuker · Jack Shuker

my reserve fuel tank dosent seem to b working, i had the leave pointing on reserve (run out) so flipped the lever 180 degrees onto what i thought was reseve and then reliased it must have already been on reseve (after some swearing i pushed the bike to the fuel station 2.5 miles away) this time i had the lev...

spadge · spadge

recently just rebuilt the top end gave everything a clean out cleaned the powervalve and jammed it fuly open in place this time BUT when i rev past 8k revs it seems to spluuter and hold back a fair bit never used to do this:( got a full athena exhaust system on it altho i never had to rejet once i had fitted it c...

mark 88 · mark 88

has anyone installed a skidplate for the bottom of the engine or the bottom of the expansion chaimber for off road. im thinking of putting one on to protect it from rocks and loggs any ideas thanks.

ABOO · ABOO

Have searched on here but can't find any idea on prices.... Seen quite a few posts from peeps saying they're either needing top-end or full rebuilds. Wondering what sort of dollar this sets you back guys??? How much would a rebuild be done by you Bradders?

toadymc · toadymc

can any one tell me if my plug looks like its running lean plz

dtmuncey · dtmuncey

How much would a rebore cost? and where do you guys get yours done? Cheers, Jake

tripr · tripr

any info on these pilot air mix screw an needle notch setting for a 240 jet setup would be appreciated i have mine at 0.25 turns on a 240 jet an needle notch 2nd from top.on a 91 bikepegged fully open runs great really but still i want more speed iv read on other posts about pre 99 bikes you turn the scre...

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Topic		Started By	Replies	Views	Last Post
	Mikuni Jets sizes in MM (Preview) hi, i have a 240 main jet so is that 2.4mm because that sounds massive i thought it would be about 1.2mm	the only way is YAMAHA DTR	0	168	May 6, 2011 by the only way is YAMAHA DTR
	flywheel question (Preview) does anyone know if i could fit a tzr flywheel with the starter cluch onto a dtre bottom end?? what im trying to do is get the lights running on my bike. its running a 2006 dtre engine on a 1992 wiring loom and cdi atm. anyone know if the older tzr flywheel would fit. this one on ebay for example. http://cgi.e...	Darren	11	544	May 4, 2011 by Darren
	my piston (Preview) any ideas on cause ?	medxb183	8	390	May 3, 2011 by medxb183
	Temperture Sensor Gauge (Preview) I know this may sound alittle stupid question but does anyone know what connector to use on this temperture sensor (pic below) as its a different top to the one I have on at the moment which needs changing Thanks lads!!!!!	PatMan	6	226	May 2, 2011 by PatMan
	Bottom end question (Preview) does any one know for sure that the dt200 and wr200 crankcases are the same as the 125?	the only way is YAMAHA DTR	2	219	May 2, 2011 by Seiki
	problem with a popping noise (Preview) (before i done this bike run perfect in every gear and was not running to much petrol to oil how ever now the bike is running a lot of petrol to oil) the problem first started after i found out my head gasket went ( 2 stroke in radiator). so i changed head gasket and got the bike running at first the bike was...	stiffla123	3	267	May 1, 2011 by Spartan
	failed run (Preview) first outing on the dt in almost 12months,50 sodding miles from home sudden loss of power,thought i was going onto reserve,little bit of noise from engine,nothing dramatic,still loss of power,stopped the bike,wouldnt start again.....no compression....any thoughts ? piston ring perhaps...t...	medxb183	4	214	May 1, 2011 by medxb183
	Smashed piston goodness!! (Preview) Met this lad a few day's ago near the local bike shops who was trying to figure out how to fit a new clutch cable so i fitted that and give him my number to ring me if he needed anything doing. I told him at the time his engine was sounding a bit rough and to get it looked at. So he rang me this afternoon telling me h...	dtrdave	21	530	Apr 28, 2011 by NathanDavies
	Starting Problems... (Preview) Hey I'm Tom, this is my first post on here...Lil nervous...hahaha. I have a 1991 DT125R which I have been using as an MX bike (So no lights, clocks etc) Having left a running bike for a couple of months it now will not run. The problem is this: The plug will only spark when I kick it over and wont continue to sp...	TommyC	17	439	Apr 25, 2011 by TommyC
	noisey clutch (Preview) as title says it makes like a rumbling noise at the moment it stops as soon as the clutch lever in its done nearly 18500miles on the same clutch it still works ok the clutch does not slip at all buts its annoying what would you recommend thanks -- Edited by gooner78 on Monday 25th of April 2011 05:14:39 PM	gooner78	2	267	Apr 25, 2011 by DT-R_bradders
	2002 power-valve modification? (Preview) Had a quick look on google to no avail, anyone know if you can pin the power valve on the 2002 model and any guidelines would be appreciated :) Henry	hsmith	8	440	Apr 22, 2011 by porky-dt125
	Engine mounting on the swing arm (Preview) Does anybody know if I'm flogging a dead horse here, is that part of the engine casing? or are they meant to drift out? I've taken out the pieces that were left off the swingarm bush after I chopped it off. (see picture)cheers in advance,Nev	NEV	2	167	Apr 19, 2011 by NEV
	Can't get the top ring in the piston groove PLZ HELP (Preview) Hi i got my piston and barrel back thrusday and was gonna fit it all back on today but was stoped when i couldnt get the top ring in the piston groove its like the groove is too small half way round the piston so i cant push the piston together like i can with the bottem one.. the bottem one is too big to go in the t...	jayjay	5	240	Apr 16, 2011 by mammoth200
	DT-125 (1999) 90km/h :( (Preview) Hello guy's Im new in here. Im far from you all-in Latvia and I just registered ;) Ok-here's my problem: I have a DT125,year 1999 and it goes only for 90 km/h. And no faster :/ From 0-89 it goes all OK,bet when it reach'es 90 km/h -It don't go any faster...(As against the wall ;D) I just hate it :/ Can anyone h...	Chicco	10	329	Apr 15, 2011 by Chicco
	Conrod has about a PINS worth of Play from side to side??? (Preview) I need some info.. Ive got the topend off my bike and had the piston sent and barrel sent to some boke that lives a few mins away. he dose cranks. He was saying to me to cheack the crank for play? ok so ive just got home and had an little feel with the conrod and it's got a little movement from side to side, about p...	jayjay	4	244	Apr 14, 2011 by midnightbikerjames
	head gasket... needs to b replaced i think. (Preview) I need to replace my gasket, iv got the gasket here and am very capable of doing most things to a bike myself, but as im new to DTs would anyone like to explain how to do it, just so i dont mess up =)	Jack Shuker	27	348	Apr 14, 2011 by Jack Shuker
	CLUTCH!! (Preview) Ok so clutch cable snapped...ordered a new one, but it's too short??! When it's all connected (properly like the one before) it is too tight, the clutch is engaged when I'm not even touching the lever! Do dtx's have a different clutch cable to other dts? If so...WTF lol. Thought about taking off crank c...	Sgt-syphilis	8	302	Apr 12, 2011 by DT-R_bradders
	top end rebuild (Preview) hi please can somone help me. i dont have a manual for my 97 dt125r and it needs a top end rebuild please could some one give me a step by step guide. also i just bourght a pwervalve servo and all the fittings and pullys.( it works) nealy new £35:) thanks.	john01	16	559	Apr 8, 2011 by jayjay
	reserve fuel tank. (Preview) my reserve fuel tank dosent seem to b working, i had the leave pointing on reserve (run out) so flipped the lever 180 degrees onto what i thought was reseve and then reliased it must have already been on reseve (after some swearing i pushed the bike to the fuel station 2.5 miles away) this time i had the lev...	Jack Shuker	4	309	Apr 8, 2011 by PatMan
	splutters after top end rebuild halp :( (Preview) recently just rebuilt the top end gave everything a clean out cleaned the powervalve and jammed it fuly open in place this time BUT when i rev past 8k revs it seems to spluuter and hold back a fair bit never used to do this:( got a full athena exhaust system on it altho i never had to rejet once i had fitted it c...	spadge	11	297	Apr 7, 2011 by spadge
	off road modds (Preview) has anyone installed a skidplate for the bottom of the engine or the bottom of the expansion chaimber for off road. im thinking of putting one on to protect it from rocks and loggs any ideas thanks.	mark 88	6	289	Apr 6, 2011 by NathanDavies
	How much for full rebuild??? Calling Bradders.. (Preview) Have searched on here but can't find any idea on prices.... Seen quite a few posts from peeps saying they're either needing top-end or full rebuilds. Wondering what sort of dollar this sets you back guys??? How much would a rebuild be done by you Bradders?	ABOO	2	260	Apr 5, 2011 by Jack Shuker
	jetting (Preview) can any one tell me if my plug looks like its running lean plz	toadymc	2	294	Apr 5, 2011 by tripr
	rebore (Preview) How much would a rebore cost? and where do you guys get yours done? Cheers, Jake	dtmuncey	3	322	Apr 3, 2011 by DT-R_bradders
	Carb settings (Preview) any info on these pilot air mix screw an needle notch setting for a 240 jet setup would be appreciated i have mine at 0.25 turns on a 240 jet an needle notch 2nd from top.on a 91 bikepegged fully open runs great really but still i want more speed iv read on other posts about pre 99 bikes you turn the scre...	tripr	3	340	Apr 3, 2011 by tripr
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