@Mike1992 No it was just unplugged and the wires were cable tied out of the way and insulated in tape.
But mine was 10 years older than yours, so probably doesn't work on the X.
Personally, I'd just fit a set of after market clocks, they'll come with zero miles. A bit of wiring work, but a lot of people have done it to DT's and other bikes.
It also devalues your bike slightly as the mileage isn't correct, and it's all recorded on the DVSA MOT history since 2007. I personally wouldn't do anything to alter possible price when selling. You won't be on a 125CC for the rest of your life.
@oldman Older bikes are easy to source frames for. Newer bikes are more complicated to find frames for. Older bikes the engine blows and it's hard to source one, or too expensive to source. So the bike is split into parts and the frame is sold with the logbook. Then someone with a stolen model maybe with a year or two difference in registration will move all the parts into the frame, and have the engine numbers stamped to match the logbook. I always look out for re-stamping when buying a bike, such as the numbers area on the engine being immaculate, in normal use the numbers will be covered in road grime, especially on DT's as they're at the top of the engine where it splits.
DT's have rocketed up in value, and not many 16-17 year old's can afford them. A lot of them are bought as mid life crisis's from when they were 17.
And most 17 year old's with good money will go out and buy a KTM 125 EXC, much more bike for £1,000 ish more than a DTR.
For obvious reasons I won't state how they start them, not that all bike thief's don't already know. But the wires they need are behind the headlight to the ignition barrel.
Bike thief's don't really use screw drivers, as they're out all night looking for bikes, and if the police stop & search the screwdriver is a going equipped to steal charge.
Often or not, they'll steal a motorbike off their doorstep, like a moped with no locks on and then bring bolt crops and go out all night looking for more bikes. That's why a lot of stolen motorbikes get found in bushes not far from where another one was stolen. They also use the stolen bike to move yours into an area to start the bike.
I honestly don't know why people bother nicking motorbikes, it's usually little teenagers to just joyride them. No one steals bikes to make money, you're lucky to see £500 for a new R1M, and they cannot be started without ordering a new ECU and lock set off of Yamaha, which is a hard task to combat bike thefts, IIRC you now need a logbook to order them.