DT125R ARCHIVE

mines a 2002 french import aswell, i can hit about 70-75mph and certainly have no lack of power, as far as i know the only restriction mine had was in the exhaust but i never had it from new so im not entirely sure, but im pretty sure it didnt have any CDI restrictions.

EDIT: haha actually ill tell you what, when i first got mine it wouldnt pass 60mph, turns out the airbox was filled with popcorn kernals , once i removed them all and replaced the filter it ran lovely.

-- Edited by RudiRulez on Sunday 4th of April 2010 05:48:12 PM

conn1987 wrote:

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ok i just dont no whats wrong with it then and its really pi**ng me off something is wrong somewhere and i dont no were shame ur not close as we could of compared bikes so i could see, unless ur coming to bristol anytime soon with it lol if anyone else can shed some light then please do!

also i cant find anything on the NET about restrictions

-- Edited by conn1987 on Sunday 4th of April 2010 05:51:17 PM

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hmm no, i wont be passing through bristol anytime soon, does it lack power in all gears? does it have a sudden burst of power after about 7500rpm, thats roughly when my ones powervalve opens and you can certain feel the power it get alot loader aswell.

 

well i think its my power-valve that is not working but it does the cycle and iv turned it 180 and still no difference iv looked up the exhaust port and it does move so i don't have a clue what's wrong with as for power it seems to go alright in all gears but the last really with a slight incline i got to go down a gear, my bike will rev past 7.5k rpm with no sudden burst of power in 1st and 2nd gear any higher gears it doesn't go past about 7k rpm!, bike does seem like a smooth ride going through the gears that's why i was wondering if it was restricted somewhere different

thanks for helping me i really appreciate this as i cant even sell the bike with the way it is without making a loss as iv only had it about 3 weeks and want to keep it really

Mines the same at the moment and Yammy reckon its the friction plate . Lost power in the mid section of each gear . Bike changes gears fine but there's deffo a power loss that's doing my head in . waiting till payday and sorting it out !!

if it was the clutch the engine would still rev up past 7500 it just wouldnt go as fast because not all the power is being transmitted to the back wheel, thats what i think happens anyway, my guess is the powervalve too, are you deffinatly sure its setup correctly, i.e opening when it gets too 7000 revs?

-- Edited by conn1987 on Sunday 4th of April 2010 07:14:24 PM

maybe as iv noticed from watching them videos that it doesnt go back flush with the engine

ive never seen one for myself but id say its not opening fully, from what ive heard the powervalve should be flat with the top of the exhaust port when fully open.

my actual engine should be fine since the bike as only ever been able to do 50mph lol also a friend done a compression test on mine and it was 130! so is that good compression what sort of PSI would i want to achieve?

yeah you should test yours just to compare against mine then, as i was thinking it needed a topend rebuild at first thats why we done it

so have u just had urs rebuilt then?

that powervalve looks like it has been turned 180 degrees around...

DTPOWER wrote:

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that powervalve looks like it has been turned 180 degrees around...

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yeah as if its upside down maybe or something il have to have a look 2moro and see what i can do

the back light on my dt isnt in the faring its underneath it so not sure if i could get a tail tidy on there