DT125R ARCHIVE

Worth a check, I'll provide loads of photos etc, as I say, the reeds checking will be my last resort as my dads fed up with me using his tools to strip it to bits, lol.

His already complaining about the screws and bolts going to break from it being stripped so much, but if it fixes it, oh well.

 

 

 

 

Ah, cheers.

I don't believe it has one.

Can't see from the photo. But the YEIS goes into the inlet manifold?

Try applying a little bit of tape over that gap. Restrict the air flow a little. Then run it.

Boom, problem sourced.

"If the baffle was clogged up, it would very likely be obvious. But now and then people use baffle packing in pipes that aren't meant to have it etc. If you removed the baffle and just went up and down the road, it would be immediately obvious if the motor revved freely and the problem would be pinpointed. 

The fact that the bike needed a rebore could just be down to normal wear. Or it could be that you have an air leak at the flywheel side crank seal, weaking the mixture, causing the bike to run hot, scoring up the bore, causing a loss of power. The plug should give a strong indication of how the motor is running - please post a picture of it, if possible. 

If the ignition coil is duff, the bike would start fine but you wouldn't be able to rev cleanly or get anywhere near the power. Pretty much as is happening... You need a multimeter to check the output of the coil to see if it's within the correct range."

 

Make sure the metal reed stoppers are about 11-12mm away from the block too.

Checked the reeds, they're perfectly fine.

Someone said they doubted it was the silencer part, pulled it off, cleaned it and now the thing is flying off the handle. Problem solved!

Also, the little piping and sound proof wadding in the silencer, will it do damage running it without it? (Full DEP system)

it'll be a lot louder and the back pressure wont be right (you'll run out of steam in headwinds and up hills) shouldn't do it any harm though 

FunkeyMunkeyDavid wrote:

---

it'll be a lot louder and the back pressure wont be right (you'll run out of steam in headwinds and up hills) shouldn't do it any harm though 

---

 

Ah, good good! 

 

It's fucking an absolute menace! The power. 

 

I nearly wheelied it pulling off first time thinking it'd still only be slow. 

Ralzy wrote:

---

Just take it easy Boxing and get used to the power

-- Edited by Ralzy on Saturday 20th of April 2013 01:31:41 PM

---

 

I am taking it easy still, still got to run it in. 

 

Going back out on it in a minute. :3

Yup, still taking it to a mechanic on Wednesday though, to make sure the carb is all set up correctly, because the previous owner has done a bodge of it.

Not raced any, lol.

Just been annoying the shit out of car drivers, lol.

I saw a red and white DT today, couldn't catch up I went in the wrong lane, he was long gone I wanted to see if he was a member on here. I'm in Leicester, I spotted him on the way to town from Saffron Lane area.

Thats wicked mate.

Glad you've sorted it out. Ride safe buddy.