Yamaha DT125R '01 - Running Project
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@Darty said:
Yeah the WR200 swingarm fits rather well. Straight in. I was concerned that the bigger swingarm would hit the reservoir on the shock under compression, but I've got clearance due the ride height. However the linkage frame bolt on my bike has fused absolute into the frame. So Im using the original DT suspension links onto the WR swingarm. Works fine, but using the the DT dog bones (original set), they are too short and basically jack the bike up about 6cm. This and the taller YZ unit make it ridiculous. The problem with this is reducing the steering angle. It's about 19 degrees or so now, and I can imagine, I'm pretty sure this will be a twitchy mess at speed. Lowering after-market links for the DT are stupid money. So I'll make some.
Did you make some dog-bones dude? I have some Lush racing -50mm ones going if you need them? I fitted them but never rode the bike, as I didn't like the feel of it, so I managed to get some stock ones instead. There brand new really and they wouldn't take em back, so If you want them we could do a deal for-sure!!! ;O)
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Finally put on my new drop links.. Tie bars.. dog bones.. whatever you like..
Water cut 7mm Stainless steel, I drew the pivots at 15.5mm to compensate for the distortion water cutting creates cutting through, essentially the water jet blasts through creating a slight taper on exit, it's like firing a cone shape rather than a straight beam.
Got a very sharp 16mm drill bit which gives the exact fit you need. Then a sand and polish.
Changed the design a little and went for a continuous sweep, got to love CAD ay.
I went for 130mm versions instead and it now sits perfectly, she's niiiice and sharp now and handles pretty bloody well for a DT.
The rear does look ridiculous.. hot rod stance not to my liking. Those portugal rear mudguards are a wacky fit on the tabs, need something else YZ to chop up.
ASV clutch lever was a score, and it's lush to use..after a thorough grit removal rebuild. far superior than my 'eBay special' perch on before. But I had to move the switch gear over for clearance, and just cannot stop fumbling because it's out of reach to my thumb. I'm always having to look at it first.. lol seriously this does get at me, but clutch is more important in this case.
The best thing is that I can still fit my DT handguards on, Thank you ASV, much obliged. Those guard threads are a god send.
Because Race bike. But no seriously don't mess with the Airbox on a DT. It's perfect as standard. I've opened up the side and top to a 'maximum' I reckon. Remember you need to control the flow of air for good induction,
I've just been messing around and after many shitty test rides and a million jets and needle adjustments it's running sweet. And it sounds like it should, all in vain for increased throttle response and overrev, not such a daily driver anymore though.
The rest is an embarrassment, rust is taking over, a bit of Hydrate 80 rust prevention and a bit of black spray just to stop it disintegrating away. Always a great play bike if it's already battered.
Bring on the summer,
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@Biker_123 ahh safe, I can put up the DXF files if you want some? Got 2pairs cut for £10 down my end.
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@Biker_123 DXF files were drawn using Solid Works, I'm not sure what programs you might have to open these, but send these to any good company and they should know what's going on.
https://www.dropbox.com/s/6aropyq2sjczw0z/Tie Bar 130mm x 6mm 1.dxf?dl=0
https://www.dropbox.com/s/0bj1uprutg8im74/TIE BAR 120mm x 6 Reform1.DXF?dl=0
Enjoy!
Next up is a custom intake, really needed I reckon 32-36mm intake,
Will put up a plan after I get it made
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What an awesome build man im loving this! top job m8y
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How did you make the bracket for the front brake
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@vtrn_raptor Hand sawed. filed, and machine sanded, you will need a Pillar drill!
I've only got a sketch you can follow, dimensions are rough and only for a YZF125 caliper that was modified. should be 68.5mm of the fork. I use 15mm spacers now of the hanger.
I started with NEV's example for a DTX caliper, and modified the fitments. If you have a DTX caliper then NEV's dimensions should be on point for you.
Create mock-ups and check your offset position thoroughly, CNC Steel alloy is a better option than ally.
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I really need to find someone who can make me one for the standard dt brake caliper as I don't have to tool to do it myself:(
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@aidan1996 I recommend it, try and learn a bit about Ignition Timing and Powervalve setup before you buy to make the most of it.
Ignitech systems are made to order, so just send them an Email and state your desired Model and/or loom type.
really need to do some more work on my project and replacing the dog bones is high on that list along with a 520 chain conversion.
I'll have a look at these on the comp! Much appreciated.