DT125R ARCHIVE

welsh dt · DTR Respected Member

keeping up with my mate

craigbulmer · Guru

DT isnt built for speed, if more is what your after then buy an Aprilia 125.. or do your bike test, dts just wont do it, but consider the running costs of a bike like that.

bkray · DTR Senior Member

for a 125, DT's are pretty good and have excellent acceleration... if our taalking about top end, why not go up on the front sprocket?

Dingle001 · DTR Senior Member

Both replies above are spot on. The DT in unrestricted form is about 20bhp, the new Aprilias are 29.5bhp. Not sure what mods you would have to do to get the DT up to the same power. Its worth a phone call to Stan Stephens who will give you good advice in my opinion.

DTR NESTOR · DTR Senior Member

good answers^, if you get the engine ported youll probs see a good 3-4-5 bhp extra, also if you get it prorted your better of running a biger carb say 34, or so.

THEN YA CAN POWN HIM!

welsh dt · DTR Respected Member

has anyone used boysen reeds , if so will i need to rejet it.

plebpl · Guru

may do may not, just do a plug chop to find out, but ive heared that they dont give any real diffrence :/

Dickhead · Nonce

if u want a faster bike get an aprilla my rx just eats the miles and i can stay at 70mph all day at about 1/4 throttle and tops aout at about 90 with the new engine ive built i think it will pull more top end but i will have to change the sprokets as the way the engine is it runs out of power at 10k then i need to upshift

Dingle001 · DTR Senior Member

You will probably get a difference with the Boysens if you tweak the reed stops. As standard they only open to about 5mm or so. The Boysens should allow you to go to 6mm or more - not sure if they come with instructions about reed stop setting or not (anyone know??). The problem with standard reeds if you open up the reed stops is that they flutter at high rpm, wont seal properly and you lose bhp. You wont need to re-jet as the mixture wont be altered - you should just get more of it through the engine.

welsh dt · DTR Respected Member

nice one dingle.