DT125R FORUM

Thanks calum,as u can see its a way off yet,we've got 2 other dtr's and a derbi atm so lots of bits to sort out but thats all part of the fun ay

Hi guys just a quick hello ,I'm new here but not new to bikes,the forum looks great already and I hope to contribute to that and some good banter of course.
So hi guys

Check they balanced the clutch properly as this also causes vibration if not built correctly,good luck bud

The engineering side of it is right up my street however the funding side of things escapes me right now haha oh well one day maybe

Check this version out yuck
https://m.youtube.com/watch?v=kuq7KZJl6vk

Cheers rogering

Thanks guys,I'm currently learning to upload pics as we speak,hopefully I've got it sorted,so will upload some pics asap,I've got a busted leg atm from coming off a couple weeks ago so can't get down to the garage very easily but I'll get some done

What year bike is it mate as the early dtr ran a bigger piston as standard 56.40
The newer ones use 56.00 ,had this problem myself some years ago,the piston slapped around causing it to eventually shatter and scrape the valve on its way outta the exhaust port (I was young then tho haha)
Definitely get the bore measured by a local engine shop,they won't charge u to tell u the size if ur nice to em
Then u can buy a piston that fits £35-40 or have them bore it to the next size and supply a piston £75 WILL BE LIKE A NEW BARREL HAHA

Ah I see,get a long screwdriver and put it through one bearing so it touches the inside of other bearing and slowly tap it out,make sure to move the screwdriver so the bearing comes out strait

Hello bud,probably a bad earth on the rear light or indicators

These are not cheap but here u go http://yambits.co.uk/dt125r-temperature-sender-switch-p-19589.html
This is the one with a spade connector but u can save yourself £16 if you are willing to put a bullet connector on your loom http://yambits.co.uk/dt125r-temperature-sender-switch-p-49919.html
Bullet is early loom spade is later loom
Hope this helps others too

Elo guys, has anyone had to replace their PV and bushes/holders ?
It says on a lot of parts websites that this is a high wear item and should be replaced as a matter of course when rebuilding a fresh engine or if it has worn.
I've just done a full rebuild on my nephews engine and the piston seems to be hitting the PV,it isn't because of the rebore or size of new piston etc as it's only on 0.5 OS.
The valve has sideways play (can move valve in and out) and a little up n down play too.
Just thought I would bring this to other people's attention
Hope this stops someone ruining a new engine or helps keep an old engine running.

https://youtu.be/REPjGEhrZKQ

Just remove ur clutch first to see if it's a clutch issue,it could be a collapsed clutch BB etc