DT125R ARCHIVE

deejaynrg · deejaynrg

Hi i have a problem with my bike, when attempting to start it will just fire and blow smoke but wont run. The engine has been fully rebuilt, so i cant see it being a mechanical fault. Ive taken the plug out and kicked it over, but the spark seems to be irregular. Ive tried looping the stand switch, still same...

dt125cc · dt125cc

well. i have a 2003 dtr 125, ive put a dep pipe onit, just want to know what is the standard size jet, and what jet i should move up to?any help would be great!

hairdoo · hairdoo

think pics say it all the o rings are for the powervalve n little gasket is for thermostat housing on head -- Edited by hairdoo on Friday 20th of August 2010 11:33:09 AM -- Edited by hairdoo on Friday 20th of August 2010 11:36:52 AM

stomper · stomper

Hi guys just got the dt rebored and the chap was saying to use loctite 5699 gasket sealer on the head gasket looking at the manual there is no mention of use of gasket sealer . has anyone used it on there rebuild also on getting the head skimmed he put a stud in the top throw the water jacket and butted to the ga...

xGINCATx · xGINCATx

I changed the clutch the other day for one that didn't make a squeeking noise, i also changed the front pipe and main jet in the carb back to standard. Anyways after taking it for a spin i realised it lacked power on the top end, also when i go to kick it over it seems to lack $hit loads of compression, the reas...

hairdoo · hairdoo

any one know how much lateral play is ok on conrod ? measured at little end it moves abt 2mm sideways not got any feeler guages !! -- Edited by hairdoo on Monday 16th of August 2010 02:27:28 PM

hairdoo · hairdoo

Stripped bike down for getting rebore done 21.000 miles that engines done so far in 4 yrs ,very reliable av stripped n polished the entire barrel n powervalve cylinder , cylinder heads had a buffing still avnt got hang of gettin pics in a vertical bloody column anyone help??? -- Edited by hairdoo on Mon...

lamr · lamr

just got myself a dt125r which has been stripped for off road, so no registration plate, gauges lights etc. and no v5! does any one know what model and year the bike is engine number-4BL 140736 frame number-jyade031000008481 please help!!!!!

gavin · gavin

hi all could some one please identify this box on my 2001 dt125r...look aftermarket 4 wires live/earth/others choped into the loom..(with cable clips) think in to cdi....It sat just under the tank... thank Gavin

hairdoo · hairdoo

can anyone tell me how much a genuine gasket set for the dtx will cost me n also how much is a genuine little end bearing gonna cost me ??? cheers DAVE

stomper · stomper

Hi guys back to the same problem of water getting into the gearbox this is the second time i have just replaced the impeller seal and was ok for 100miles but it started to overheat and lose water out overflow any ideas thinking the thermostat stuck closed and boiled up or head gasket its my daughters b...

dtrdave · dtrdave

I should have fitted the new piston rings after all Just wondering, would it have a huge effect on performance only having 90psi ? Took it out today and felt really flat! as if the powervalve wasn't working but i've checked and cleaned that and it works fine. It didn't seem to be revving out either. The re...

dtrdave · dtrdave

I don't mean it's just been disconnected,it's never been there ? There's no hole for it in the back of the clocks! I thought all early models had it? (mines a 98 )

Dickhead · Dickhead

http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs117.ash2/39178_1526945970852_1150748386_1486810_7743402_n.jpg

chrisboi · chrisboi

what should i use to clean inside and outside of my engine as its in pieces at the moment?

denzx03 · denzx03

HI GUYS/GALS IVE STILL GOT REAL BIG PROBLEMS WITH MY DTR125, ITS STILL STRUGGLING TO START AND WHEN IT AS STARTED IT JUST KEEPS BOGGING OUT IVE CHEKCKED FOR AIR LEAKS AND IVE GOT NEW JET (230) BUT MY PROBLEM IS STILL THERE AND ITS REALLY PI$$ING ME OF NOW CAN ANYONE HELP COS I REALLY DONT KNOW WHAT TO DO NOW, T...

chrisboi · chrisboi

Where can i get uprated reed valves from for a dt 125 re 04 model??

JORDAN-43 · JORDAN-43

Can someone please tell me the standard needle position for the carb for my dt125r 2000

dudley · dudley

http://www.4shared.com/document/7wxn3j5y/Piston_Failures_Explained__1_.html

stomper · stomper

Hi anyone help me looking to grt a clutch casing off ebay and it says its from a 3bn model the one i am looking to replace is a 1999 year how do you find if its a 3bn model thanks stomper

madbrummie · madbrummie

hey all my dtr dosent seem to want to like the upgrades fitted no mater what i do to it wont rev over 9000 revs my set up is pegged power valve carbon reeds removed snorkel 240 main jet standard front pipe (de restricted?????) i only fitted the main jet today and it doesnt like it splutters on low revs and fe...

michaelvdl · michaelvdl

Hi i have a dtx and noticed that the exhaust doesn't smell 2 strokey, I have drained the carb and all that was in it was petrol so i don't think the pump is working or something any help? thanks

carl13671 · carl13671

I have bought a 2003R and today took the head off and on the piston crown it had a H stamped on it. Does anyone know what this H means or what size piston this means. Cheers for any help.

JORDAN-43 · JORDAN-43

my bike is loosing water very quick and then overheats the waters leaking from the coolant bottle at the back. its just coming out of the overflow. anyone no why this is happening Thanks

carl13671 · carl13671

I have eventually built up the top end and want to know how to run it in properly. I pressume i treat it like a new bike,its had a rebore new piston and rings and a new little end. Cheers.

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
	DT 125 2001 Wont start!!! (Preview) Hi i have a problem with my bike, when attempting to start it will just fire and blow smoke but wont run. The engine has been fully rebuilt, so i cant see it being a mechanical fault. Ive taken the plug out and kicked it over, but the spark seems to be irregular. Ive tried looping the stand switch, still same...	deejaynrg	3	326	Aug 22, 2010 by NathanDavies
	Dep pipe Upjetting (Preview) well. i have a 2003 dtr 125, ive put a dep pipe onit, just want to know what is the standard size jet, and what jet i should move up to?any help would be great!	dt125cc	1	332	Aug 22, 2010 by xGINCATx
	top end gaskets (genuine) (Preview) think pics say it all the o rings are for the powervalve n little gasket is for thermostat housing on head -- Edited by hairdoo on Friday 20th of August 2010 11:33:09 AM -- Edited by hairdoo on Friday 20th of August 2010 11:36:52 AM	hairdoo	9	306	Aug 21, 2010 by hairdoo
	Head GASKET Sealer (Preview) Hi guys just got the dt rebored and the chap was saying to use loctite 5699 gasket sealer on the head gasket looking at the manual there is no mention of use of gasket sealer . has anyone used it on there rebuild also on getting the head skimmed he put a stud in the top throw the water jacket and butted to the ga...	stomper	19	575	Aug 20, 2010 by hairdoo
	Has my head gasket gone? (Preview) I changed the clutch the other day for one that didn't make a squeeking noise, i also changed the front pipe and main jet in the carb back to standard. Anyways after taking it for a spin i realised it lacked power on the top end, also when i go to kick it over it seems to lack $hit loads of compression, the reas...	xGINCATx	14	504	Aug 19, 2010 by xGINCATx
	con rod (Preview) any one know how much lateral play is ok on conrod ? measured at little end it moves abt 2mm sideways not got any feeler guages !! -- Edited by hairdoo on Monday 16th of August 2010 02:27:28 PM	hairdoo	6	213	Aug 17, 2010 by NathanDavies
	strippin top end (Preview) Stripped bike down for getting rebore done 21.000 miles that engines done so far in 4 yrs ,very reliable av stripped n polished the entire barrel n powervalve cylinder , cylinder heads had a buffing still avnt got hang of gettin pics in a vertical bloody column anyone help??? -- Edited by hairdoo on Mon...	hairdoo	0	212	Aug 16, 2010 by hairdoo
	unknown model year! (Preview) just got myself a dt125r which has been stripped for off road, so no registration plate, gauges lights etc. and no v5! does any one know what model and year the bike is engine number-4BL 140736 frame number-jyade031000008481 please help!!!!!	lamr	3	307	Aug 15, 2010 by lamr
	please identify this box (Preview) hi all could some one please identify this box on my 2001 dt125r...look aftermarket 4 wires live/earth/others choped into the loom..(with cable clips) think in to cdi....It sat just under the tank... thank Gavin	gavin	1	246	Aug 15, 2010 by Malc
	gaskets (Preview) can anyone tell me how much a genuine gasket set for the dtx will cost me n also how much is a genuine little end bearing gonna cost me ??? cheers DAVE	hairdoo	8	269	Aug 14, 2010 by hairdoo
	water in the gearbox AGIAN (Preview) Hi guys back to the same problem of water getting into the gearbox this is the second time i have just replaced the impeller seal and was ok for 100miles but it started to overheat and lose water out overflow any ideas thinking the thermostat stuck closed and boiled up or head gasket its my daughters b...	stomper	7	324	Aug 11, 2010 by stomper
	Low compression... (Preview) I should have fitted the new piston rings after all Just wondering, would it have a huge effect on performance only having 90psi ? Took it out today and felt really flat! as if the powervalve wasn't working but i've checked and cleaned that and it works fine. It didn't seem to be revving out either. The re...	dtrdave	10	577	Aug 10, 2010 by Spartan
	How come there's no reed switch in my clocks? (Preview) I don't mean it's just been disconnected,it's never been there ? There's no hole for it in the back of the clocks! I thought all early models had it? (mines a 98 )	dtrdave	2	268	Aug 8, 2010 by dtrdave
	piston carnage (Preview) http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs117.ash2/39178_1526945970852_1150748386_1486810_7743402_n.jpg	Dickhead	8	428	Aug 1, 2010 by Dickhead
	cleaning inside and outside of my engine??? (Preview) what should i use to clean inside and outside of my engine as its in pieces at the moment?	chrisboi	1	279	Jul 31, 2010 by Dickhead
	ENGINE STRUGGLES TO START AND BOGS OUT WHEN STARTED (Preview) HI GUYS/GALS IVE STILL GOT REAL BIG PROBLEMS WITH MY DTR125, ITS STILL STRUGGLING TO START AND WHEN IT AS STARTED IT JUST KEEPS BOGGING OUT IVE CHEKCKED FOR AIR LEAKS AND IVE GOT NEW JET (230) BUT MY PROBLEM IS STILL THERE AND ITS REALLY PI$$ING ME OF NOW CAN ANYONE HELP COS I REALLY DONT KNOW WHAT TO DO NOW, T...	denzx03	22	604	Jul 29, 2010 by denzx03
	where can i get reed valves from??? (Preview) Where can i get uprated reed valves from for a dt 125 re 04 model??	chrisboi	10	491	Jul 29, 2010 by Dickhead
	Needle poisition (Preview) Can someone please tell me the standard needle position for the carb for my dt125r 2000	JORDAN-43	0	223	Jul 25, 2010 by JORDAN-43
	piston failures explained pdf (Preview) http://www.4shared.com/document/7wxn3j5y/Piston_Failures_Explained__1_.html	dudley	2	281	Jul 23, 2010 by craigbulmer
	3bn model (Preview) Hi anyone help me looking to grt a clutch casing off ebay and it says its from a 3bn model the one i am looking to replace is a 1999 year how do you find if its a 3bn model thanks stomper	stomper	4	348	Jul 15, 2010 by RudiRulez
	wont rev past 9k ??? (Preview) hey all my dtr dosent seem to want to like the upgrades fitted no mater what i do to it wont rev over 9000 revs my set up is pegged power valve carbon reeds removed snorkel 240 main jet standard front pipe (de restricted?????) i only fitted the main jet today and it doesnt like it splutters on low revs and fe...	madbrummie	12	481	Jul 14, 2010 by NathanDavies
	My bike isn't getting oil through (Preview) Hi i have a dtx and noticed that the exhaust doesn't smell 2 strokey, I have drained the carb and all that was in it was petrol so i don't think the pump is working or something any help? thanks	michaelvdl	9	301	Jul 7, 2010 by woll
	PISTON QUERY (Preview) I have bought a 2003R and today took the head off and on the piston crown it had a H stamped on it. Does anyone know what this H means or what size piston this means. Cheers for any help.	carl13671	14	376	Jun 28, 2010 by gazzaballs
	Overheating, loosing water. (Preview) my bike is loosing water very quick and then overheats the waters leaking from the coolant bottle at the back. its just coming out of the overflow. anyone no why this is happening Thanks	JORDAN-43	24	497	Jun 24, 2010 by SimsonS51E
	Running in process. (Preview) I have eventually built up the top end and want to know how to run it in properly. I pressume i treat it like a new bike,its had a rebore new piston and rings and a new little end. Cheers.	carl13671	16	486	Jun 21, 2010 by craigbulmer
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