DT125R ARCHIVE

Calum122 · Calum122

Seeing as no one wants to share advice on Carburetta tuning on this site I've had to resort to Youtube to find some helpful videos. This one in particular came across as very is good. Clear Consisive information. Part 1 Part 2 [video=http:/...

NEV · NEV

DT125R MIKUNI FLATSLIDE CARB[URL=http://imageshack.us/photo/my-images/3/carb2s.jpg/][IMG]http://img3.imageshack.us/img3/3921/car...

NEV · NEV

dan28 · dan28

Who has fitted the vhbh from the tdr The carb was running a 142 main jet I was told to use a 170 will I also have to change the atomiser an the other jet or do you only need to change the main jet

The_DtR_Maniac1991 · The_DtR_Maniac1991

Hi guys, what jets are you guys using for standard carb, full DEP system...im using a 160 main.. but feel it's not enough.. any help will be appreciated :)

The_DtR_Maniac1991 · The_DtR_Maniac1991

Not sure what section to put under. but anyway, I get like a flat spot between 6-7K then it's ok once after power valve opens at 7,000rpm, no power between 6-7k. shall i buy some carb cleaner and see if that makes a difference? stuff that i can put into the petrol tank. or maybe redex? i literally have to dro...

The_DtR_Maniac1991 · The_DtR_Maniac1991

my DT125R 2002 really struggles to start, when it finally starts, it revs really high on it's own, have to press kill switch otherwise itll probably blow up lol, the carbs been ultrasonic cleaned, put all back together again..doing same thing,, could it POSSIBLY be the CDI? there was a previous probl...

Idol · Idol

Hi, I was wondering if any body knows the size of the thread for the air needle? mine was rounded off plus the thread in the carb is shagged. I've managed to drill it out, but I need to re-tap the thread in the carb body. Thanks

The_DtR_Maniac1991 · The_DtR_Maniac1991

Hi guys, got a problem., bike struggles to stay alive on idle, ive got new air mixture screw. all set everything up, still the same dies on idle, it bogs before the revs up up. does this suggest it's the crankcase seals? there are no air leaks on the inlet or anywhere, could this be pilot jet in the carb? mai...

SMurF_12 · SMurF_12

Im having a real blonde moment... can anyone please tell me what pipes go where on the carb please

Luke · Luke

Hi all. The DT is leaking petrol at night when I leave it in the shed. It seems to be on the L/H side where the fuel tank pipe to the carb is, I'm guessing it's somewhere around that area. It's absolutely fine when it's running and riding. It just appears to be doing it at night. Also the chain has got some pet...

zooankski · zooankski

Having some serious issues with a recent build. I can get the bike running no problem at all however - If I rev it, then the rpm will hang quite high and take time to go back to idle. I have adjusted the pilot for the fastest idle at tick over (which is hard to maintain) and throttle response seems good with no...

zooankski · zooankski

Where do most people get new pilot and mains for their standard DT125r Mikuni carbs?

Luke · Luke

Hi, does anyone know the standard settings for all the screws? Air screw etc? Carb is getting rebuilt and all cleaned out so all the settings will be out... Don't want to blow it up.

sebamax2 · sebamax2

what do you guys think about the koso/oko carburettors? im temted to slap a 30 or 32 on my new dt but dnt know how good they really are

dread123 · dread123

anyone use aftermarket hose? any uk recommendations please? with size ordered-? was gonna go for cheap ass but not so sure?

Calum122 · Calum122

Hopefully somebody can give us a hand on this onE. So as you know I've got a Yamaha tzr 4dl engine. The inlet manifold does not have the oil inlet ON. I don't want to trial and error it as you know oil is kinda important! So does anyone know where the feed is for the oil pump. If you guys want some pictures...

GoProKid95 · GoProKid95

Hi all, recently took my dep pipe off and reverted to a standard expansion and pipe. what size jet should be in the carb, for this standard pipe, air box is standard also!

harrison · harrison

Can't get the pilot screw out of my carb. The head has completely gone and it won't move left or right. Just seeing if there is any solutions before I buy another carb. Obviously I've tried spraying numerous amount of Wd40 in and and then leaving it. However I can't get the thing out Cheers

The Bandit · The Bandit

Has anyone got a bodge method for removing the carb float bowl? I.E. Doesn't involve removing the fuel tank and carb completely.

hairdoo · hairdoo

whats the best way of cleaning these out ? if any ! As they appear cloged up suggestions plz .. Doo -- Edited by hairdoo on Wednesday 22nd of January 2014 08:27:43 PM

Sam M · Sam M

Hey there decided i wanted a bigger carb a while ago nothing daft 30-32mm then i realised i could just open the standard carb up 2mm with no difficulties :) so...... i did. took a spare carb top to work made a holding jig then slapped it in the wire eroder at work and sparked her out to 30mm with no probs . look...

hairdoo · hairdoo

can someone help me with where do the pipes run to other than fuel pipe ! does one route down by swingarn n engine ?

harrison · harrison

Hi, been taking the carb apart and think I found the problem with the main jet being 240. However I haven't got a full DEP so I'm going to replace it with either a 210 or 220 main jet. The other problem I've had is im not sure if there is supposed to be something in this hole as there wasn't when I took it off, an...

2strokemx · 2strokemx

does anyone know how much a garage, or who ever does it, would charge to take apart the carburetor and give it all a good clean? no part replacement just a clean up geezer from work says he will do it for a score cheers

Topic		Started By	Replies	Views	Last Post
	STICKY: Carburettor Tuning Video Tutorials Carb Tuning TMX TM VHSA MIKUNI Dell'orto Help (Preview) Seeing as no one wants to share advice on Carburetta tuning on this site I've had to resort to Youtube to find some helpful videos. This one in particular came across as very is good. Clear Consisive information. Part 1 Part 2 [video=http:/...	Calum122	10	2199	Jul 25, 2013 by zander
	STICKY: DT125R MIKUNI FLATSLIDE CARB - PARTS BREAKDOWN (Preview) DT125R MIKUNI FLATSLIDE CARB[URL=http://imageshack.us/photo/my-images/3/carb2s.jpg/][IMG]http://img3.imageshack.us/img3/3921/car...	NEV	3	1517	Feb 5, 2013 by NEV
	STICKY: MIKUNI FLATSLIDE CARBS EXPLODED VIEW (Preview)	NEV	1	1581	May 26, 2012 by NEV
	Tdr dellorto carb on dt (Preview) Who has fitted the vhbh from the tdr The carb was running a 142 main jet I was told to use a 170 will I also have to change the atomiser an the other jet or do you only need to change the main jet	dan28	3	2193	Sep 14, 2016 by Calum122
	What jets are you using for your full DEP? (Preview) Hi guys, what jets are you guys using for standard carb, full DEP system...im using a 160 main.. but feel it's not enough.. any help will be appreciated :)	The_DtR_Maniac1991	14	1990	Nov 15, 2015 by GoProKid95
	Flat spot? ( 1 2 ) (Preview) Not sure what section to put under. but anyway, I get like a flat spot between 6-7K then it's ok once after power valve opens at 7,000rpm, no power between 6-7k. shall i buy some carb cleaner and see if that makes a difference? stuff that i can put into the petrol tank. or maybe redex? i literally have to dro...	The_DtR_Maniac1991	41	3976	May 7, 2015 by scrimsmustang
	Possible carb problem? (Preview) my DT125R 2002 really struggles to start, when it finally starts, it revs really high on it's own, have to press kill switch otherwise itll probably blow up lol, the carbs been ultrasonic cleaned, put all back together again..doing same thing,, could it POSSIBLY be the CDI? there was a previous probl...	The_DtR_Maniac1991	3	1618	Jan 30, 2015 by Calum122
	Air mixture needle thread size (Preview) Hi, I was wondering if any body knows the size of the thread for the air needle? mine was rounded off plus the thread in the carb is shagged. I've managed to drill it out, but I need to re-tap the thread in the carb body. Thanks	Idol	0	1313	Dec 10, 2014 by Idol
	CRANKSEALS/CARB (Preview) Hi guys, got a problem., bike struggles to stay alive on idle, ive got new air mixture screw. all set everything up, still the same dies on idle, it bogs before the revs up up. does this suggest it's the crankcase seals? there are no air leaks on the inlet or anywhere, could this be pilot jet in the carb? mai...	The_DtR_Maniac1991	0	1273	Oct 31, 2014 by The_DtR_Maniac1991
	carb pipes (Preview) Im having a real blonde moment... can anyone please tell me what pipes go where on the carb please	SMurF_12	2	1336	Oct 4, 2014 by MIGHTYMAN
	Leaking Petrol With Petrol Tap Off Overnight (Preview) Hi all. The DT is leaking petrol at night when I leave it in the shed. It seems to be on the L/H side where the fuel tank pipe to the carb is, I'm guessing it's somewhere around that area. It's absolutely fine when it's running and riding. It just appears to be doing it at night. Also the chain has got some pet...	Luke	5	1593	Sep 28, 2014 by AndyYam
	Problem Carb? (Preview) Having some serious issues with a recent build. I can get the bike running no problem at all however - If I rev it, then the rpm will hang quite high and take time to go back to idle. I have adjusted the pilot for the fastest idle at tick over (which is hard to maintain) and throttle response seems good with no...	zooankski	2	1319	Jun 28, 2014 by Victor
	best place to get new pilot and main jets (Preview) Where do most people get new pilot and mains for their standard DT125r Mikuni carbs?	zooankski	2	1382	May 22, 2014 by mr karnage
	Carb Settings (Preview) Hi, does anyone know the standard settings for all the screws? Air screw etc? Carb is getting rebuilt and all cleaned out so all the settings will be out... Don't want to blow it up.	Luke	0	1249	May 16, 2014 by Luke
	opinions on the koso carbs (Preview) what do you guys think about the koso/oko carburettors? im temted to slap a 30 or 32 on my new dt but dnt know how good they really are	sebamax2	5	1359	May 10, 2014 by sebamax2
	fuel hose pipe (Preview) anyone use aftermarket hose? any uk recommendations please? with size ordered-? was gonna go for cheap ass but not so sure?	dread123	0	1188	Apr 23, 2014 by dread123
	VHSA Carb Oil Inlet (Preview) Hopefully somebody can give us a hand on this onE. So as you know I've got a Yamaha tzr 4dl engine. The inlet manifold does not have the oil inlet ON. I don't want to trial and error it as you know oil is kinda important! So does anyone know where the feed is for the oil pump. If you guys want some pictures...	Calum122	5	1752	Mar 30, 2014 by Calum122
	Standard Jet size (Preview) Hi all, recently took my dep pipe off and reverted to a standard expansion and pipe. what size jet should be in the carb, for this standard pipe, air box is standard also!	GoProKid95	1	1369	Mar 27, 2014 by Victor
	Pilot screw (Preview) Can't get the pilot screw out of my carb. The head has completely gone and it won't move left or right. Just seeing if there is any solutions before I buy another carb. Obviously I've tried spraying numerous amount of Wd40 in and and then leaving it. However I can't get the thing out Cheers	harrison	3	1311	Mar 8, 2014 by harrison
	Being carb lazy here (Preview) Has anyone got a bodge method for removing the carb float bowl? I.E. Doesn't involve removing the fuel tank and carb completely.	The Bandit	7	1709	Mar 8, 2014 by madrevs
	carb heater pipes (Preview) whats the best way of cleaning these out ? if any ! As they appear cloged up suggestions plz .. Doo -- Edited by hairdoo on Wednesday 22nd of January 2014 08:27:43 PM	hairdoo	2	1317	Mar 7, 2014 by Darren
	Bored standard carb out to 30mm carb tuning (Preview) Hey there decided i wanted a bigger carb a while ago nothing daft 30-32mm then i realised i could just open the standard carb up 2mm with no difficulties :) so...... i did. took a spare carb top to work made a holding jig then slapped it in the wire eroder at work and sparked her out to 30mm with no probs . look...	Sam M	26	2022	Mar 2, 2014 by AndyYam
	carb pipes (Preview) can someone help me with where do the pipes run to other than fuel pipe ! does one route down by swingarn n engine ?	hairdoo	0	981	Feb 28, 2014 by hairdoo
	Anyone know what this is? (Preview) Hi, been taking the carb apart and think I found the problem with the main jet being 240. However I haven't got a full DEP so I'm going to replace it with either a 210 or 220 main jet. The other problem I've had is im not sure if there is supposed to be something in this hole as there wasn't when I took it off, an...	harrison	8	1589	Feb 28, 2014 by mr karnage
	Carb service (Preview) does anyone know how much a garage, or who ever does it, would charge to take apart the carburetor and give it all a good clean? no part replacement just a clean up geezer from work says he will do it for a score cheers	2strokemx	13	1740	Feb 14, 2014 by 2strokemx
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