DT125R FORUM

Okay...so some overnight parts from Japan and CMSNL and some others from Australia I've finished the gearbox rebuild..... [image: AP1GczP_uZVbF9qAtBI354lEecnxLNxr8vbpUAQX4_vlIA9Vektt4F5jf-okC8IKzb-OUXzGWAEb2gJNNhOSg1z6rRUYxyeakYQzl0UTbNy3aYgQaNtDnjYHclQfoLdDpXTF0t-MH4SgTQx6iV9iZ-u7SigG=w531-h793-s-no?authuser=0] Brand new genuine output shaft from Japan and a brand new genuine 3rd gear.... This completes the output shaft rebuild. [image: AP1GczP2KpflcDkrYU74DldmqlAwpnyYDh75kN7EZYAAglDFS4Ra4LWnIYcKXa6rnAp7ty7aVOLlYi2L3QSSUmKEKmz4x8877dE6mOLmU2agpdmnqEWHhnnVvKWyfegoR5YeRtRLXxHg_0i344ZpHCKh6_0J=w761-h1311-s-no?authuser=0] New genuine shims, circlips and bearings. [image: AP1GczPryZOZov8DT0-4jUeYt9z_7olcQbjIl_LvQWZucNyTLVWDzE4tiNqYCMewakgXjpUJA4aooJ7ag_6TJJfxkDdR1-7N3matX1AMPOzOpKTtpnvtfxdLqPCUuaQd6eWEpiiW5gXy_nO4xrbnAsFLSqab=w701-h1311-s-no?authuser=0] Fingers cross that's all back together correctly, I'll have to remember to select all gears and test BEFORE firing up the motor, else this will be £8000 down the drain if it destroys the motor. [image: AP1GczMblrL3GSghxv-bdTwebX27Hor_M-mVXqegDXi81nqwtrWInLHT76b7CKw_wZShtJgcg9Pluap6zSiuuBGYc3-Bdq1Hm3uY6S8j9hHd2cRbrALCVLtJmYwStwQvVccRRi3cG9EXhfGkWnRrLev5wda2=w805-h1311-s-no?authuser=0] [image: AP1GczMvMs624VQIz_wN9T46Xyp4hLGD4ohiPk99O3qnBMhR6ThKBKNEpP6JXFj8s31LHogKSYbFf-DjDR--JvFbQuXh4gjMjdbguCwfNIuovLGw5JCMK0RXKyyWVEWeoNHQ0CoDrVWDVHLvk8Qa178nQMFt=w1311-h1311-s-no?authuser=0] And whilst picking the shock spring up from the paints for my ETX, I also picked up the swinging arm for this bike too. [image: AP1GczNkYj3ORIWqQl0xC4kYfaZyJ1ywJV2dfvlihCnch34e7OrCJ1hJIc1Oh9EXyTvIBN8FWkZxZgKaWRp0BakEPsrsPAWWkLHEcPGATSnyyucBAsdvVx3W-xukLygatC3vIlJjx5vrvCrE_pRhpFoyG6KT=w1922-h928-s-no?authuser=0] Should go without saying, all near bearings and a lovely carbon fibre chain guard which I bought about 5 years ago for the Raptor. I'll probably keep the Raptor bone stock and therefore it's not needed for that project and can go onto this beasty. I did have some swinging arm spool spacers machined up but for the life of me I simply cannot find what I done with them. No doubt they'll turn up eventually.

@calum said in Athena 170 porting: @lllDennis I read that the port timings were off by 3mm because apparently the barrel was based off a dtr200. How true that is... Would love to see before and after dyno pulls though. See how the stock Athena compares to a modified one. I have compared Athena 170 kit vs 3MB P (and 2RH) cylinders, the only 2 things that's off the athena kit is the piston taller than the stock,the ports are exact copy off the 3MB just a bit wider and the c port is little lower and matches more a 2RH cylinder The 170 is a mix between the 200cc casing (for the cooling canals and ypvs location) and 125 portmap internally.I searched for a piston that has the dimensions of the 56mm and with bore of 65mm but there is not,only some aftermarket forged that are max 61mm have the right piston height (pin to top).