WE CHECK "THE WASP" - DTX 125

[declan]

@LaNoire yeah yours is already better than 90% of the dts being sold as “mint”

[LaNoire]

You are right. I expected it too but, there are rusts, but nothing too serious. I was able to see especially in the subframe and steering column.

First discovery and thing to point out on the list: rear wheel bearing gaskets:

I tried to rotate the bearings with my finger. It spins, but with difficulty. It is lubricated but not much to my liking

Maybe it's the 35000km that it will have today. more or less. I doubt that the previous owner will change them before. Buy the bike with about 17000.
if so, yamaha, it's a rock!

[Calum]

Yamaha don't make the bearings but wouldn't scrimp on them neither. Probably be Koyo bearings I would imagine.

[LaNoire]

They have sent me the photos of an exploded view. it is from a yz 125 from 1989.

It only seems so to me or the chassis is the same!
At first I was interested in the carburetor. I think that in this model it was a mikuni 35, but there is a photo that has made me very afraid, I let you discover what it is ...

I am very inclined to take his swing arm. I have read that it is adaptable to our DTs. What do you think? Is that so? He leaves it cheap and is "close" to home.
I leave you all the photos that he has sent me in case you see something of interest. Give me your most sincere opinion. In time we are to fill our shelves with useless things

Notice: It seems that what remains of the motorcycle has been unearthed from a site from the Viking age...

[LaNoire]

@Calum Do you recommend Koyo?

Apparently there are 3 units of type:
6004-2RD / 20 * 42 * 12
and 2 gaskets TT0-D772-1-TC / 28 * 47 * 7

I found this info thanks to this link

[LaNoire]

@declan Thank You! Although I used it daily for years, I have always tried to take maximum care of it. But the passing of the years do not forgive.

[declan]

@LaNoire take good care of things and they last forever also I recommend koyo

[Stevie Wonder]

@LaNoire I do believe that yes they share many similarities the Deltabox Swingarm on a DT200WR, the on that never used the snail chain adjusters. They also share a lot the same hardware, I’m not 100% it’s direct bolt on however I do believe it’d be fairly easily adapted. I’m still working out how to embed images (I’ve had some trouble getting it to work) so I can upload what I’d find out and clear things up with everyone, it’s worth noting it’s still a very pretty much lighter swingarm and also much less expensive then it’s DT200WR counterpart and more aftermarket options for replacement parts

[LaNoire]

@declan That works with everything!

@Stevie-Wonder Thank you, I will investigate on my side. One of the advantages that most interest me with the swingarm change, are the chain tensioners. I don't like OEM ones. I will keep saying.

Today I was able to focus a little more on the bike. Result: I have removed all the electrical part from the headlight to the rear headlight.
I have only been left in the chassis: The YPVS and the wiring that comes out of the ignition case.

I have labeled all electrical cable terminals with their name, origin and destination where it is plugged in.

Have you managed to reassemble the electrical circuit in a more orderly and clean way?

I think I found the cause that sometimes the key didn't make contact:

One year ago, I installed a Trailtech Vapor with indicators and I did not remember the number of cables added.

I have emptied the oil tank, engine coolant, removed the radiator and the coolant hoses.

Tomorrow I will have a better view of the state of the frame. My imagination is running and begins to see colors

[Calum]

I had the same thing on my ignition barrel!

[Stevie Wonder]

@LaNoire pretty sure the swingarm is from a 1991. The 89’s I don’t think carry the same 3SP stamp on them but still use the same hardware. Although I think the chain slider is a slightly different design as the 89 has square edges