DT125R FORUM

Merry Christmas everyone!

@HOTSHOT-III Hopefully the issue gets resolved as I don't want to lose the data they're hosting. The important stuff I ought to host here to guarantee it isn't lost.

That's so cool! It's been ages since I have been on my DT. I ought to sort the bits out on it and get it up and running again. My ETX is close to being done as well and that thing will rip when it's finished

@Barron-1989 Yes white frame looking good Get yourself on here for a 3-wire servo but be warned, it'll go crazy at the end of the auction, I'd be bidding in the last 30 seconds if it was me: https://www.ebay.co.uk/itm/336567587789?_skw=Yamaha+DT125R+YPVS+Power+Valve+Servo+3+Wire+3MB-85820-00-00&itmmeta=01KQT8H9E0R37E9VYX7EPS2BN6&hash=item4e5cfdd3cd:g:bfgAAeSwr9dp-JC5 Other than that start looking around French and German breakers online as they're full of DTRs. The KTM LC2 125 trail bike (kind of an Austrian DTR) used the 3MB DT125RE engine and electrics and the 3-wire servo is the same so search for part numbers: 3MB-85820-00 (Yamaha) 51137095000 (KTM) https://www.trevorpopemotorcycles.co.uk/index.php?main_page=ktm_fiche_finder&model=112684&group=C96511304_080010&cat=3&bike_name=1998 125 LC2 100 (D)&section=1&groupname=CYLINDER HEAD EURO 125 96 I once purchased a number of BNIP LC2 servos which had both part numbers printed on the label and they were blatantly 3MB Yamaha 3-wire servos, sadly now all gone but if you're lucky you might find some somewhere. Re PV pulley and cables, the pulley and housing is identical to all other Yamaha '80s/'90s two-strokes apart from the RD500LC so any pulley and housing from an RD350YPVS, TZR/TDR/R1-Z250 or TZR125/TZR125R/TDR125 should fit (they're all stamped 29L which is the YPVS350 model code). I wouldn't recommend Yambits PV cables as the outers are very slightly the wrong length meaning you only get like 2-3mm thread engagement in the pulley housing with the PV adjusted correctly. Genuine cables are worth every penny or if you're into lubing cables after every wash like me, you can make your own here: https://dt125r.co.uk/post/28693

Shouldn't be too difficult. [image: s-l1600.jpg] You see the little dot on the balancer shaft cog, that should align with the corresponding dot on the crank gear. On the DTR, it's like the piston is at TDC for the dot to align. But should be simple enough.

@Rallyfinnen ciao, grazie per il tuo post. Anch'io vorrei installare il 230 sulla mia TDR125R per avere più potenza. Rimango in attesa di tuoi cortesi aggiornamenti. Grazie

@Calum That site is known even more year's!!!!!