Things are not going my way. 180km into break in I spotted 2 small holes on the cylinder. I have spoken to the company I bought the kit from and they will contact Athena for assistance. Hopefully this ends well..
@calum said in Derestricting 97 DT125r:
@sloanparkes Sounds like the powervalve isn't set up to me.
Ya well I've moved it back the other way... but it doesn't reg above 65000 in 5th and still sat at 60mph ish I'm so sure it's restricted...
And ya @NINJA it was right at the bottom and my toolbar on my phone was covering it saying 97 to 99 cheers dude
@sgt-robuck-5 Don't forget the ignitech @Darty rates them.
I used Zeel because it came recommended to me.
I will be buying zeel for my upcoming project.
I've had problems with them, I contacted them and they sorted it out no quibbles.
Peace of mind.
@dtrdaz03 The RE's are by far the easiest to derestrict. It's the fact that up to 1999, the last DTR's were severely restricted, and not even derestricting them fixed that. You had to swap out the CDIs. The RE's was just earth the green and black wire plus an aftermarket pipe and that was it. Again you're limited to the capabilities built into the CDI. Once you swap out the CDI for an aftermarket one then you are golden no matter what year your bike was.
Oh dear, back on topic anyhow....Let us know how you get on with the PV. If it still struggling then it would sound like it's still restricted and needs sorting ASAP! 2003 models were the WORST for restrictions!
2strokes in general is jetted plenty rich, to make sure they dont seize.
I run my 94 R with snorkel removed, and the airbox opened slightly more.
Stock mainjet, and half a notch leaner on the needle. The mainjet is still plenty rich.
Stock header, and aftermarked end can, otherwise stock.
You shouldn't be polishing either really,
but here is a used MITAKA vs a New WOSSNER to illustrate. Carbon does help to a point. The Wossner is a CNC finish, but if your hunting power there wont be any difference.
Problem with forged is the difference in thermal expansion to a cast alloy. MITAKA is a good choice for the DT.
Smooth yes, but a rough surface lends itself to optimising fuel atomisation, that is more important.
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