DT125R ARCHIVE

vtec2008 · vtec2008

Does anyone know were to purchase a replacement pilot screw? Its that little brass bastard down in the hole that likes to piss you off by getting jamed then shredding itself -- Edited by vtec2008 on Monday 25th of July 2011 10:54:10 PM

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

http://www.ebay.co.uk/itm/Mikuni-Choke-Cable-Converion-kit-MK-412-Remote-TM-VM-/150620370589?_trksid=p5197.m7&_trkparms=...

PatMan · PatMan

Soooooooo after getting a brand new throttle cable (apull) of Yamaha I have noticed the cable for the oil pump is a tad to long, you know the gery cable, how the hell am I suppose to shorten it or get around this cheers lads

PatMan · PatMan

Hello Lads this is gonna be a dumb question, (PIC BELOW), Just wanted to know what is the easiest way without damaging the carburettor adaptor (NUMBER 18 IN THE PIC) to get it out, I take it you just take the cover off and pull it though the air box thing?? Cheers lads

moto_psycho · moto_psycho

Whats the best way to run in after a top end rebuild on a DT125R?

carl13671 · carl13671

I have bought a 2006 DTX as a project bike that is a bit of a lemon and knowing it had a funny noise in 2nd gear i had a do at diagnosing what the problem was today. 1st gear is fine as is 3,4,5,6,th gears but when put in 2nd gear it sounds like the noise you get when the sprocket teeth are curled and grabbing the c...

bkray · bkray

Ok, so i got 2 pretty major problems i need sorting fairly soon... :/ First off, My coolant, ok, so the problem is, everytime i stop, i find i have coolant around my expansion tank, the level in it is sometimes low or sometimes high (random when i stop the bike) and my bike runs at different temps all the ti...

dt 1999 · dt 1999

Hi i am new to the forum and i have just purchased a dt which needs a bit of work doing and have some questions about it and would appreciate any help full input. 1.there is a small gap between the piston barrel and the barrel head(the lid on the top end) should it be there. 2.i was riding home the other night a...

Reef · Reef

From the way its going im gonna cut my losses with my dt and either get a car or another bike :/ however im trying a few more things it could be first........ theres a stator with coils on ebay, been tried on a 1997 dt to make sure its working fine tho mines a 3md bottom end engine (1998-1992) Anyone know if it w...

Mattydav · Mattydav

Well ive noticed recently when i come to a stop my bike is leaking coolant just under where the stand is, i have to top up the rad every morning and evening before and after work. Ive taken the thermostat out - still same problem i checked the water pump was ok and its fine and turning. i had the head gasket...

tripr · tripr

went to replace my top end gasket today as i was boiling a little water blowin the top off the expansion tank. finished putting it all together doing up the final top nut an it tugged the stud right up through sealed top of the nut pinged off . so the cylinders internal thread is stuffed peein out water so ...

vtec2008 · vtec2008

On taking out and cleaning my reed valve i noticed the metal stoppers are different. One is at a slightly different angle then the other? I tryed loosening and tightening the screws but it made no difference. Also it makes one side of reed flaps harder to open then the other. Is this normal?

dirtpoor · dirtpoor

ok i put a dep tail pipe no my bike now when i get up to 80mph i looses all power and dies i have to drop down a gear or 2 and pump the throtel to get the power back. but it use to get to 85 and still be pulling but the lil red speed light in the clock comes on and i back off the gas. (found out that light is thare to let the...

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

http://www.3pracing.gr/listing-REED+VALVE+SYSTEM+WR200-13.html

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

Domestic Specification 2002 2002 Swiss design 4DJB 4DJB 2002 2002 EU EU Specification 3RM 3RM 2004 2004 EU EU Specification 1D0 1D0 2001 2001 TDR125R TDR125R 4GX9 4GX9 DT200R DT200R 3ET 3ET 3FW 3FW 3FW6 3FW6 Release Month 1988 5 May 1988 1991 5 May 1991 ? ? ? ? ? ? ? ? 1988 6 June 1988 Bodywork Lengt...

carl13671 · carl13671

Alright all not been here for a while,just a quick question for a new project. As alot of members change engines alot do you have to tell DVLA? I might want to put a 2008 dtx engine in a 2006 dtx,i know the engine fits but will i have problems with DVLA as its newer? Ive read somewhere about new reg for this and...

vtec2008 · vtec2008

I was putting my engine cylinder back on after getting a rebore and i noticed i lost 1 of the alignment pins that go on the studs! Will i need to get another one? Or will i just use the one pin?

samuel-j · samuel-j

Hi guys, when the bike was being taken down for the MOT yesturday the oil light seemed very tempermental, on then off etc... The gearbox was drained, filled with 750ccm of 10w30 on thursday and is at the correct level... The 2 stroke oil is lowish.. what does the oil light indicate? On a car its oil pressu...

bkray · bkray

Im not stupid and know im talking about an exhaust in the engine (sorry if this is the wrong section mods) just dont go slating me. :D Anyways. I have a dep expanny for my bike (im currently running a gutted stock) well, i put it on and as some of you may have read, my bike broke. what happened exactly was i go...

Mattydav · Mattydav

Only just started doing it recently Maybe i should change the coolant ? suggestions ?

Mattydav · Mattydav

The 2 wires attatched to the power vavle have kinked and snapped off the ends, does anyone know where i can get some of these? Thank you

Reef · Reef

Right bought my DT in february, it took like 20 mins to start it..... had to replace the bottem end cus of a massive hole and now it jus dont want to start...... Theres loads of compression, fuels getting down, and there is a spark but a very weak one, as soon as it sparks it cuts out??? mates checked some of t...

bobo · bobo

When changing down through the gears on my 2001 dt125r the gearchange feels notchy not a smooth gear change,but feels smoother changing up through the gears,bike has only done 4k miles,clutch is adjusted correctly,has anyone else experienced this or maybe all dt's are like this.

Dene · Dene

hi, just bought a 2000 'w' dtr125 after having one years back. really dissapointed the way it performs, thought it must be restricted exhaust so bought a full big one but no difference. Checked powervalves and they seem to line up and work fine, have pulled out and taped up restrictor in speedo, cut the...

Mattydav · Mattydav

Ok , Bought the bike the other day Y Reg persuming it had carburettor problems , so when i purchased it i stripped the carb off the bike , cleaned it out , checked all the pipes were free and no blockages , put the carb back onto the bike , fitted a in line fuel filter to catch all the **** from the tank if there is...

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
	New pilot screw? (Preview) Does anyone know were to purchase a replacement pilot screw? Its that little brass bastard down in the hole that likes to piss you off by getting jamed then shredding itself -- Edited by vtec2008 on Monday 25th of July 2011 10:54:10 PM	vtec2008	6	260	Jul 26, 2011 by vtec2008
	help with choke lever and adding a cable (Preview) http://www.ebay.co.uk/itm/Mikuni-Choke-Cable-Converion-kit-MK-412-Remote-TM-VM-/150620370589?_trksid=p5197.m7&_trkparms=...	the only way is YAMAHA DTR	6	176	Jul 20, 2011 by the only way is YAMAHA DTR
	Throttle Cable (Preview) Soooooooo after getting a brand new throttle cable (apull) of Yamaha I have noticed the cable for the oil pump is a tad to long, you know the gery cable, how the hell am I suppose to shorten it or get around this cheers lads	PatMan	2	144	Jul 20, 2011 by PatMan
	Carburettor Adaptor (Preview) Hello Lads this is gonna be a dumb question, (PIC BELOW), Just wanted to know what is the easiest way without damaging the carburettor adaptor (NUMBER 18 IN THE PIC) to get it out, I take it you just take the cover off and pull it though the air box thing?? Cheers lads	PatMan	5	180	Jul 20, 2011 by PatMan
	Top end rebuild running in? (Preview) Whats the best way to run in after a top end rebuild on a DT125R?	moto_psycho	15	460	Jul 20, 2011 by jayjay
	2006 dtx gearbox/2nd gear problem. (Preview) I have bought a 2006 DTX as a project bike that is a bit of a lemon and knowing it had a funny noise in 2nd gear i had a do at diagnosing what the problem was today. 1st gear is fine as is 3,4,5,6,th gears but when put in 2nd gear it sounds like the noise you get when the sprocket teeth are curled and grabbing the c...	carl13671	3	170	Jul 18, 2011 by carl13671
	coolant and brake problems. (again) (Preview) Ok, so i got 2 pretty major problems i need sorting fairly soon... :/ First off, My coolant, ok, so the problem is, everytime i stop, i find i have coolant around my expansion tank, the level in it is sometimes low or sometimes high (random when i stop the bike) and my bike runs at different temps all the ti...	bkray	4	236	Jul 17, 2011 by bkray
	dt 1999 restoring (Preview) Hi i am new to the forum and i have just purchased a dt which needs a bit of work doing and have some questions about it and would appreciate any help full input. 1.there is a small gap between the piston barrel and the barrel head(the lid on the top end) should it be there. 2.i was riding home the other night a...	dt 1999	27	379	Jul 16, 2011 by dt 1999
	Helpppp (Preview) From the way its going im gonna cut my losses with my dt and either get a car or another bike :/ however im trying a few more things it could be first........ theres a stator with coils on ebay, been tried on a 1997 dt to make sure its working fine tho mines a 3md bottom end engine (1998-1992) Anyone know if it w...	Reef	13	422	Jul 15, 2011 by tripr
	DTR Problem (UPDATED) Need Advice ASAP. (Preview) Well ive noticed recently when i come to a stop my bike is leaking coolant just under where the stand is, i have to top up the rad every morning and evening before and after work. Ive taken the thermostat out - still same problem i checked the water pump was ok and its fine and turning. i had the head gasket...	Mattydav	15	338	Jul 14, 2011 by PatMan
	2 cylinders an threaded studs (Preview) went to replace my top end gasket today as i was boiling a little water blowin the top off the expansion tank. finished putting it all together doing up the final top nut an it tugged the stud right up through sealed top of the nut pinged off . so the cylinders internal thread is stuffed peein out water so ...	tripr	19	227	Jul 11, 2011 by tripr
	WTF Reed valve??? (Preview) On taking out and cleaning my reed valve i noticed the metal stoppers are different. One is at a slightly different angle then the other? I tryed loosening and tightening the screws but it made no difference. Also it makes one side of reed flaps harder to open then the other. Is this normal?	vtec2008	26	1528	Jul 10, 2011 by vtec2008
	wont pull in 6th. (Preview) ok i put a dep tail pipe no my bike now when i get up to 80mph i looses all power and dies i have to drop down a gear or 2 and pump the throtel to get the power back. but it use to get to 85 and still be pulling but the lil red speed light in the clock comes on and i back off the gas. (found out that light is thare to let the...	dirtpoor	2	202	Jul 10, 2011 by dirtpoor
	airbox top cut off ( 1 2 ) (Preview) http://www.3pracing.gr/listing-REED+VALVE+SYSTEM+WR200-13.html	the only way is YAMAHA DTR	33	1681	Jul 9, 2011 by dirtpoor
	some usefull techical information year comparison (Preview) Domestic Specification 2002 2002 Swiss design 4DJB 4DJB 2002 2002 EU EU Specification 3RM 3RM 2004 2004 EU EU Specification 1D0 1D0 2001 2001 TDR125R TDR125R 4GX9 4GX9 DT200R DT200R 3ET 3ET 3FW 3FW 3FW6 3FW6 Release Month 1988 5 May 1988 1991 5 May 1991 ? ? ? ? ? ? ? ? 1988 6 June 1988 Bodywork Lengt...	the only way is YAMAHA DTR	6	1074	Jul 7, 2011 by the only way is YAMAHA DTR
	Engine change(DVLA) (Preview) Alright all not been here for a while,just a quick question for a new project. As alot of members change engines alot do you have to tell DVLA? I might want to put a 2008 dtx engine in a 2006 dtx,i know the engine fits but will i have problems with DVLA as its newer? Ive read somewhere about new reg for this and...	carl13671	20	364	Jul 6, 2011 by carl13671
	Cylinder alignment pins/dowls??? (Preview) I was putting my engine cylinder back on after getting a rebore and i noticed i lost 1 of the alignment pins that go on the studs! Will i need to get another one? Or will i just use the one pin?	vtec2008	2	153	Jul 3, 2011 by vtec2008
	Oil light Problems (Preview) Hi guys, when the bike was being taken down for the MOT yesturday the oil light seemed very tempermental, on then off etc... The gearbox was drained, filled with 750ccm of 10w30 on thursday and is at the correct level... The 2 stroke oil is lowish.. what does the oil light indicate? On a car its oil pressu...	samuel-j	5	199	Jul 3, 2011 by xGINCATx
	DEP expanny (Preview) Im not stupid and know im talking about an exhaust in the engine (sorry if this is the wrong section mods) just dont go slating me. :D Anyways. I have a dep expanny for my bike (im currently running a gutted stock) well, i put it on and as some of you may have read, my bike broke. what happened exactly was i go...	bkray	9	284	Jul 3, 2011 by mammoth200
	Bike Overheating ! ? (Preview) Only just started doing it recently Maybe i should change the coolant ? suggestions ?	Mattydav	15	265	Jul 2, 2011 by Dingle001
	Power Valve Snapped Need Advice! (Preview) The 2 wires attatched to the power vavle have kinked and snapped off the ends, does anyone know where i can get some of these? Thank you	Mattydav	5	176	Jul 1, 2011 by Darren
	Engine not starting ?? (Preview) Right bought my DT in february, it took like 20 mins to start it..... had to replace the bottem end cus of a massive hole and now it jus dont want to start...... Theres loads of compression, fuels getting down, and there is a spark but a very weak one, as soon as it sparks it cuts out??? mates checked some of t...	Reef	21	549	Jun 30, 2011 by Reef
	Notchy gearchange (Preview) When changing down through the gears on my 2001 dt125r the gearchange feels notchy not a smooth gear change,but feels smoother changing up through the gears,bike has only done 4k miles,clutch is adjusted correctly,has anyone else experienced this or maybe all dt's are like this.	bobo	4	179	Jun 29, 2011 by mammoth200
	dissappointing dt (Preview) hi, just bought a 2000 'w' dtr125 after having one years back. really dissapointed the way it performs, thought it must be restricted exhaust so bought a full big one but no difference. Checked powervalves and they seem to line up and work fine, have pulled out and taped up restrictor in speedo, cut the...	Dene	12	264	Jun 27, 2011 by Dene
	DTR Running Problems (starved of fuel ? ) (Preview) Ok , Bought the bike the other day Y Reg persuming it had carburettor problems , so when i purchased it i stripped the carb off the bike , cleaned it out , checked all the pipes were free and no blockages , put the carb back onto the bike , fitted a in line fuel filter to catch all the **** from the tank if there is...	Mattydav	27	662	Jun 26, 2011 by Mattydav
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