Hi All,
Been lurking for a while and just got my DTR on the road and had a few rides out on the dry non-salty days! Few things to sort/understand I think, but on the whole its just as I imagined it would be. Its a 2002 french import with just under 10k Km's. Still trying to work out if its restricted or got an issue somewhere as it will only just about do 60mph.
Anyway everyone on forums loves Pics so heres a quick one in the garage.
Cheers,
Dec
Just been out for an evening ride before the forecast says it’s cold and wet again.
It’s like a totally different bike, and everything I’d hoped from it when I got it 
@NINJA that’s a fresh approach vs multiple other places that don’t want external links cheers dude.
@NINJA said in Another New Guy:
@d3cme Share a link to the post you found dude, as someone else may benefit from it in the future!!!
I wasn’t sure if it was against the rules but well worth a read to future people who may have similar.. im really hoping it’s all sorted anyway, looking forward to getting out on if when the oil cap turns up.
https://yamahaclub.com/forums/topic/20583-de-restricting-my-dt125r/
So I may have sorted my problem... I say may, because it makes sense but am yet to test.
On another forum I found some posts from about 8 years ago outlining someone else’s derestriction journey. Looks like he had a 2003 french import DTR, so very close to mine.
He found that the Powervalve under the pully was a diamond shape and needed turning to a derestricted state as it wasn’t flush with the exhaust port. Now I’d seen mention of a diamond shape thing somewhere and also mention of turning the powervalve but didn’t really understand what it meant. There was also a restriction in his 3MB-14160 expansion chamber just like the older models straight out of the cylinder.
I was working last night so had some time this afternoon to take a look, and found my powervalve had this diamond shape on the end, and after getting the exhaust off I could feel that it wasn’t flush in the port.
Now that I’ve aligned it all, and run it up the servo is back to normal (it was a bit sticky straight after turning so I guess things were gunked up where they shouldn’t be).
Annoyingly I can’t ride it currently as the gearbox oil cap is all chewed up and I had already dropped the oil and taken it out by the time I realised. Hopefully a replacement will be here tomorrow.
Initially though it seems much smoother and revs more freely after warming it up a bit, but won’t know for sure until I ride it. I guess with the powervalve being out of line entirely it would have been restricted right through the rev range and ‘wide open’ still restricted as much as fully closed?
Not sure if this means I’ll need to rejet... biggest worry currently so will keep an eye on the plug. Couldn’t see anything in the exhaust so hopefully be much better now.
Sorry for the long post, will get a few pics up later to hopefully make sense of it all..
Thanks All,
I think a certain amount of this is managing my expectations. I used it for work today and it was great, I think its just not got the 'kick' I was expecting from the YPVS. I'll have a look at the PV tonight and take the exhaust off to see whats what!
I was actually eyeing that exhaust up earlier @NINJA, looks very nice!
Sadly no change still having moved the Reed Switch well out of the way.
Think I'll whip the exhaust off later and check there is a powervalve in there lol
@NINJA said in Another New Guy:
@d3cme AS @Louis-James said "Check the reed switch in the back of the Speedo", removing that would make it rev higher and be more snappy
for-sure.
Ah thank you, I done that after his post so hopefully that’s done it! Haven’t been able to test yet.
It was the carb out bits that were worrying me on the guide, and also don’t really want to change the exhaust!
@NINJA said in Another New Guy:
@d3cme Welcome aboard! She looks mint dude nice find. If your struggling to hit 60mph+, then there's either an internal problem with the engine or the rev limiter is kicking in? What RPM does she pull maxed out?
Thank you for the warm welcome! It runs so smoothly I don't think there's a major problem, or hope not anyway! It does feel like its being limited but I thought the french ones were less likely to be. Its about 7500-8000 RPM but in all gears. In Neutral or with the clutch in it goes all the way to the redline, seems very odd. I haven't kept revving the nuts off it though incase there is some other problem, but riding under 7k its as you'd expect.
@Louis-James said in Another New Guy:
Welcome. Sweet looking DT.
2002 is the same as the 2003.. most likely has the reed switch in the back of the Speedo. 5 min job to do. They have the very good CDI if it's the same as my 03
Thank's bud, think I follow you on Instagram with the 200wr build? I think I recognise the name anyway!
I've just whipped out the Reed Switch and done some reading, would it limit the revs in every gear or just top speed? Will have to wait until tomorrow/next week to get back out on it to try though, fingers crossed!
@Minia said in Another New Guy:
Welcome. Good looking bike, well most french imports are
Thank you! I looked at a few of all mileage/age and this ticked all the boxes for me Theres on screw on the RH side flare thats not original but other than that I think it is!
Yeah friends have had import cars and you definitely need to have a lot of love for them to deal with the cost/rarity of parts!
My last car was an M3 and there was horrendous M tax on parts for that!
Nice read, shame about the ending 
Having come from cars, bikes are refreshingly cheap for parts from what I’ve seen!
