DT125R FORUM

I use the Athena pipe with the 170 cylinder, it works quite well, and most of the power is in the midrange, even if I can get it to rev higher with modified ignition curve, the torque is in the midrange. I have seen Mick Abbey writing somewhere that the stinger ID needs to be at least 22mm (or was it 23) with the 170 kit, so that is a bit tight at least with the Athena pipe. The black paint seems to hold up quite well on the Athena-branded version.

@hotshot-iii @aragian Gawd! I made the mistake of buying a chinese "racing" coil and that caused me so much grief. A fresh DTR rebuild and I was plagued with running issues which I couldn't get my head around. Wasn't until my brother bought his RD 350 and he took it in for a Dyno where the chap refused to run the bike due to the coil and suddenly it hit me!

I recommend Zeeltronic too.

Thank you both for the advice, im going to change all the fluids, new filter and plug and some fresh e5 fuel. Ill see how it is after this as I wasn't able to find a carb kit, so dont want to pull the carb untill I can get a gasket really

Very nice! Welcome!

Yes your DT will be autolube. If it wasn't... you'd have known by now. You'll need to keep an on eye on the two stroke level and refill it as it gets depleted.

Thanks for the good answer. I would like a slightly longer swingarm, so the dt200 swingarm does not meet my needs. Wr200 swingarm would be a bit longer, but requires more work...

I found out that the shorter rear axle collar(part numper 90387-202U8) is the same on the Wr200 and Dt. If anyone has that longer collar(part numper 90387-206X8), could you measure its length? And if anyone has a wr200 rear axle, could you measure its length? The rear axle part numbers of the Wr and Dt are almost the same WR axle part numper 3XP-25381-00 DT axle part numper 3BN-25381-00

@Calum Is that undeslung exhaust a custom job? I'm building a DT LC 'X' (supermoto-inspired) and want to run a underslung exhaust on it. I'm thinking a underslung DTR exhaust could fit pretty well, some minor mods will probably be needed though. I have a modified DTR Athena 170 cylinder with cylinder reed, and a Zeeltronic for that engine.

Hi Mohamed, That is a cool looking bike you have there. I am not too familiar with the newer models as it's not something we get over here and I don't know what performance upgrades are available in your region. Definitely like to see more of what you do to the bike though! Welcome to the forum.

Hello there, As far as I was aware the Yamaha DT was discontinued in 2007 instead Yamaha makes rhe WR series. That looks like a cool looking bike though, would love to know more about it. I take it you're in the Asian market, hence why this is still available. I didn't know that the bike was still being produced there. I'd almost argue the bike's styling is closer to the 80's LC model vs the earlier 70's model, with the bike using an aircooled design over the liquid cooled variant. Sorry I can't be much more help than that, still cool bike though!