DT125R ARCHIVE

rob patton · rob patton

my Power Valve has hit the pistion but not for long it was on tickover and i cba to take the exhaust off becuse ill just want to cry lol -- Edited by rob patton on Sunday 29th of May 2011 02:38:47 PM

wnp_uk · wnp_uk

the other day i was riding along in the rain and some nob going the other way sped through a massive puddle which went all over the bike , a split second later the bike startde dying but cleared , the nxt day i noticed wen going about 50/60 bike started dying down again so when i got home i replaced the air fil...

mx gaz · mx gaz

tried new battary on my 2000 dt ypvs still dose cleening sycle but dosent move when i rev the bike dont no what to try next

rob patton · rob patton

i just got a dt 125 r its got a dep end can ,the carb is f***ed on it leaking every where and all the screws are a chewed up so thinking of putting a bigger carb on ,my m8 has a keihin 39mm flat side for sale for 60 quid but i duno what size jets ill need ?????

steve0200 · steve0200

can anyone please tell me the restrictions on a 1999 dtr?ive got a gutted dep back box,and it looks like my front pipe has been cut open and re welded,ive pinned open the power valve, and also set up my servo,but still no power bands?could it be the carb or the reeds?i hav,nt got a clue?im about ready to giv...

rob patton · rob patton

every time i turn the tap on about 10sec l8er it leaks fule out i striped the carb down and it was ok for about half a mile then started it again can anyone help ???

mx gaz · mx gaz

power valve dose cleening sycle but dosent open when i rev coz its french dont now what is stoping it plz help

simon · simon

bought a 96 dt125r in very good condition 5,500 miles 2 owners etc etc.previous owner didnt have much of a clue.i took it for a ride in a built up area thinkin mmmm seems a bit slow but decided to buy it anyway because of the condition bought a powervalve kit for it (servo,cables etc) battery wasnt chargin...

assasinz2 · assasinz2

ok ive finaly got y bike all back together apart from one key component the carb and i cant remeber wer any of the lines goto so can someone please show e a diagram or something labeling wer each pipe goes please

emp0 · emp0

Hi, wtf is going on with my dt, it drinks 14 liters (3.1 gallons) per 100 kilometers, (62 miles) It has mikuni 32mm carb, 230 main jet, whitch seems good, and 35 idle jet, dont know about that. And 170cc kit. So yea, its running pretty nicely i think, just upset about the thirstynes of this little mobile....

Walshy · Walshy

Just had a new ffront wheel fitted and first night out my bike cuts out... i filled up a gallon before i left home so it wasnt the petrol. i was kicking it and using the electric start and nothing. my mate said bump it so i did and it started! i rode to the fuel station just incase it was fuel and nothing? it woul...

SheffieldBlade · SheffieldBlade

Hi all, just to let you know when i finally get round to aquiring photobucket account i have some new pics to put up of my spark plug, lol. Seems to be ok, had it out just to check. Right, powervalve/.........when i got my bike it was fully restricted. I began by taking out the baffle in the expansion pipe(...

PatMan · PatMan

Seing as I got my bike apart could someone tell me from the pics below have I got the racing reed valves in?? Apparently the standard ones are steel the ones I got in at the moment are kind of a clear plastic type set, cheers guys, Pics below.

Mattydav · Mattydav

My DTR 2001 reg , it will start with the choke on but then over revvs , then when i take the choke off it drops the revs rapid and if i dont manually keep revving the bike it will cut out The bike is rideable but i cant get it to idle on its own and kick starting it takes quite a few attempts ?

Jack Shuker · Jack Shuker

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220781124917&ssPageName=STRK:MEWAX:IT

NathanDavies · NathanDavies

http://www.polini-uk.com/motorcycle/athena-cylinder-kits/0/athena/

erndog · erndog

runs fine on qtr throtle but when i pull it right back cuts out and dies.also eating spark plugs.at the moment its in having crank seals done if its not that i have ran out of ideas your help would be great as its a sexy looking bike clean engine and fat grephics.cheers

Sgt-syphilis · Sgt-syphilis

Ok so was out t'other day. bike sat in sun all day whilst i was chilling, then rode in heavy traffic/roadworks for 20 or so mins,mostly at stand still. Then a dual caridge way blast...after a bit i started losing power so i assumed low petrol, switched to reserve whilst i was coasting but was literally ju...

Crana · Crana

Currently my 2-stroke bottle is full of Castrol Actevo which I just discovered is mineral oil, not the semi-sythetic type I thought it was. Oops I think I will use the fully sythetic stuff next time I go to Halfords, but it's pretty expensive. Where's the cheapest place to buy 2-stroke oil?

porky-dt125 · porky-dt125

Any advice on what sprockets to get to aid the wheelie process at the mo my bike will come up in 1st and 2nd if u try hard but I want it wheelie easier any help appreciated

mark 88 · mark 88

has anyone ever tryed the athina 170cc top end kit on there bike. I was just looking at it and I cant help but wonder is it worth the price for example do you need a different carb or can it just be rejetted, is the flote bowl large enough and can it refill quickly enough to feed the engine, will flote hight n...

mc_gee06 · mc_gee06

hey just wondering did anyone experience the powervalve ever shooting out the side of engine.? bike still runs perfect but no power. anyone know where i could get new powervalve?

mc_gee06 · mc_gee06

does any1 knw if cutting the piece of actualy make a difference?

DTCrazedKid · DTCrazedKid

I was considering buying this today, keep popping up whilst i'm looking around, has anyone fitted one of these and had it working? would like to know the outcome of one and if it's worth buying cheers

lmiller · lmiller

Hi there, I recently rebuilt the top end on my dt125r 1990. New piston and rings, little end and rebore. The first 100 miles everything went smoothly. Since then it has started to get hot ( about 3quarters up the dial just under the red) Loads of coolant is coming out of the overflow pipe of the expans...

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
	have i just f**ed my piston (Preview) my Power Valve has hit the pistion but not for long it was on tickover and i cba to take the exhaust off becuse ill just want to cry lol -- Edited by rob patton on Sunday 29th of May 2011 02:38:47 PM*	rob patton	23	395	May 30, 2011 by rob patton
	major power problem on 07 dtx (Preview) the other day i was riding along in the rain and some nob going the other way sped through a massive puddle which went all over the bike , a split second later the bike startde dying but cleared , the nxt day i noticed wen going about 50/60 bike started dying down again so when i got home i replaced the air fil...	wnp_uk	14	343	May 30, 2011 by NathanDavies
	help (Preview) tried new battary on my 2000 dt ypvs still dose cleening sycle but dosent move when i rev the bike dont no what to try next	mx gaz	1	147	May 30, 2011 by midnightbikerjames
	39mm carb jetting (Preview) i just got a dt 125 r its got a dep end can ,the carb is f***ed on it leaking every where and all the screws are a chewed up so thinking of putting a bigger carb on ,my m8 has a keihin 39mm flat side for sale for 60 quid but i duno what size jets ill need ?????	rob patton	14	317	May 29, 2011 by rob patton
	anyone know the restrictions on a 1999 dtr (Preview) can anyone please tell me the restrictions on a 1999 dtr?ive got a gutted dep back box,and it looks like my front pipe has been cut open and re welded,ive pinned open the power valve, and also set up my servo,but still no power bands?could it be the carb or the reeds?i hav,nt got a clue?im about ready to giv...	steve0200	21	392	May 29, 2011 by GADGET
	carb leaking out the overflow (Preview) every time i turn the tap on about 10sec l8er it leaks fule out i striped the carb down and it was ok for about half a mile then started it again can anyone help ???	rob patton	4	308	May 29, 2011 by tripr
	help french dt125r (Preview) power valve dose cleening sycle but dosent open when i rev coz its french dont now what is stoping it plz help	mx gaz	19	500	May 28, 2011 by mx gaz
	please help im goin outta my mind! lack of power! (Preview) bought a 96 dt125r in very good condition 5,500 miles 2 owners etc etc.previous owner didnt have much of a clue.i took it for a ride in a built up area thinkin mmmm seems a bit slow but decided to buy it anyway because of the condition bought a powervalve kit for it (servo,cables etc) battery wasnt chargin...	simon	10	540	May 28, 2011 by louisBOSS
	CARB HELP PLEASE (Preview) ok ive finaly got y bike all back together apart from one key component the carb and i cant remeber wer any of the lines goto so can someone please show e a diagram or something labeling wer each pipe goes please	assasinz2	17	293	May 27, 2011 by PatMan
	My DT is way too thirsty (Preview) Hi, wtf is going on with my dt, it drinks 14 liters (3.1 gallons) per 100 kilometers, (62 miles) It has mikuni 32mm carb, 230 main jet, whitch seems good, and 35 idle jet, dont know about that. And 170cc kit. So yea, its running pretty nicely i think, just upset about the thirstynes of this little mobile....	emp0	16	330	May 23, 2011 by dirtpoor
	BIKE WONT START (Preview) Just had a new ffront wheel fitted and first night out my bike cuts out... i filled up a gallon before i left home so it wasnt the petrol. i was kicking it and using the electric start and nothing. my mate said bump it so i did and it started! i rode to the fuel station just incase it was fuel and nothing? it woul...	Walshy	6	360	May 22, 2011 by bkray
	Power Valve on pre servo models. (Preview) Hi all, just to let you know when i finally get round to aquiring photobucket account i have some new pics to put up of my spark plug, lol. Seems to be ok, had it out just to check. Right, powervalve/.........when i got my bike it was fully restricted. I began by taking out the baffle in the expansion pipe(...	SheffieldBlade	6	317	May 22, 2011 by PatMan
	Racing Reed Valve (Preview) Seing as I got my bike apart could someone tell me from the pics below have I got the racing reed valves in?? Apparently the standard ones are steel the ones I got in at the moment are kind of a clear plastic type set, cheers guys, Pics below.	PatMan	7	330	May 22, 2011 by PatMan
	DTR NEEDS SERIOUS HELP PLEASE ! (Preview) My DTR 2001 reg , it will start with the choke on but then over revvs , then when i take the choke off it drops the revs rapid and if i dont manually keep revving the bike it will cut out The bike is rideable but i cant get it to idle on its own and kick starting it takes quite a few attempts ?	Mattydav	24	505	May 20, 2011 by PatMan
	swing arm bearings (Preview) http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220781124917&ssPageName=STRK:MEWAX:IT	Jack Shuker	2	182	May 19, 2011 by Seiki
	Found Athena 170 kit for 335!! (Preview) http://www.polini-uk.com/motorcycle/athena-cylinder-kits/0/athena/	NathanDavies	10	509	May 18, 2011 by mark 88
	engine cuts out on full revs (Preview) runs fine on qtr throtle but when i pull it right back cuts out and dies.also eating spark plugs.at the moment its in having crank seals done if its not that i have ran out of ideas your help would be great as its a sexy looking bike clean engine and fat grephics.cheers	erndog	29	434	May 17, 2011 by mammoth200
	Strange noise...Detonation???? (Preview) Ok so was out t'other day. bike sat in sun all day whilst i was chilling, then rode in heavy traffic/roadworks for 20 or so mins,mostly at stand still. Then a dual caridge way blast...after a bit i started losing power so i assumed low petrol, switched to reserve whilst i was coasting but was literally ju...	Sgt-syphilis	5	422	May 13, 2011 by Sgt-syphilis
	Which 2-stroke oil do you use? And where from? ( 1 2 ) (Preview) Currently my 2-stroke bottle is full of Castrol Actevo which I just discovered is mineral oil, not the semi-sythetic type I thought it was. Oops I think I will use the fully sythetic stuff next time I go to Halfords, but it's pretty expensive. Where's the cheapest place to buy 2-stroke oil?	Crana	31	1057	May 12, 2011 by emp0
	What size sprockets to get some front end action (Preview) Any advice on what sprockets to get to aid the wheelie process at the mo my bike will come up in 1st and 2nd if u try hard but I want it wheelie easier any help appreciated	porky-dt125	13	467	May 12, 2011 by bkray
	170cc top end practical ??? (Preview) has anyone ever tryed the athina 170cc top end kit on there bike. I was just looking at it and I cant help but wonder is it worth the price for example do you need a different carb or can it just be rejetted, is the flote bowl large enough and can it refill quickly enough to feed the engine, will flote hight n...	mark 88	1	319	May 11, 2011 by ToySoldier
	power valve shot out of engine (closed) (Preview) hey just wondering did anyone experience the powervalve ever shooting out the side of engine.? bike still runs perfect but no power. anyone know where i could get new powervalve?	mc_gee06	3	266	May 11, 2011 by NathanDavies
	inlet manifold restrictor (closed) (Preview) does any1 knw if cutting the piece of actualy make a difference?	mc_gee06	1	212	May 11, 2011 by DT-R_bradders
	Athena 170cc cylinder kit ( 1 2 ) (Preview) I was considering buying this today, keep popping up whilst i'm looking around, has anyone fitted one of these and had it working? would like to know the outcome of one and if it's worth buying cheers	DTCrazedKid	38	1399	May 10, 2011 by emp0
	Loosing coolant, help please!! (Preview) Hi there, I recently rebuilt the top end on my dt125r 1990. New piston and rings, little end and rebore. The first 100 miles everything went smoothly. Since then it has started to get hot ( about 3quarters up the dial just under the red) Loads of coolant is coming out of the overflow pipe of the expans...	lmiller	27	617	May 9, 2011 by ToySoldier
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