1995 yz125 powervalve linkage

kygm2000
Posts
5
Joined
8/19/2019
Location
Saint Cloud, MN, USA
Edited Date/Time 6/13/2021 4:42am
Howdy guys, I’m new here and I’m working on a 1995 yz125. I threw in a new bottom and top end but when I went to assemble the power valve linkage, it didn’t have the little slot to fit on the powervalve shaft, and upon further investigation in the box of parts included with the bike, I found the slotted piece that fits on the shaft. I have now idea how to get this powervalve back together. I’ll include some pictures. Any help is appreciated, thanks!



1
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8/19/2019 2:32pm
I suggest viewing a parts PDF of the assembly ,should be straight forward after seeing that.

Ghost
6/13/2021 4:42am
Do you know if that little part is buyable? I’ve been trying to find it for a while now but I couldn’t
6/16/2024 7:45am

Hey I actually ended up gettting the same bike off of Facebook marketplace and I’m working on that power valve issue rn I was gonna see if you had any ideas or help with it!

The Shop

kygm2000
Posts
5
Joined
8/19/2019
Location
Saint Cloud, MN, USA
6/16/2024 9:29am
Hey I actually ended up gettting the same bike off of Facebook marketplace and I’m working on that power valve issue rn I was gonna see...

Hey I actually ended up gettting the same bike off of Facebook marketplace and I’m working on that power valve issue rn I was gonna see if you had any ideas or help with it!

I actually lost the little spacer when I was putting it back together. I bought some reinforced filament and made a model of the spacer in autodesk inventor. Then I fdm printed and assembled everything. Here are some photos.

Unfortunately I no longer have the stl or ipt files or else I’d send them over. 

2
6/17/2024 12:27am

Dang and were you the original Owner of this bike bc I actually ended up finding the spacer piece but I’m struggling to actually find the lever piece that connects to the linkage!

6/17/2024 12:38am

I found everything else I need for it except this part and the person I bought from said he lost this piece when trying to rebuild and I’m struggling to find this one part!

kygm2000
Posts
5
Joined
8/19/2019
Location
Saint Cloud, MN, USA
6/17/2024 8:48am
I found everything else I need for it except this part and the person I bought from said he lost this piece when trying to rebuild...

I found everything else I need for it except this part and the person I bought from said he lost this piece when trying to rebuild and I’m struggling to find this one part!

Is the bike chrome dipped? The one I had was chrome dipped and I rebuilt the top and bottom end. Sold it later that summer (2019). 

You can print the spacer, but the linkage and any part subject to torsion will likely fail if it's printed using fdm or sla.

Look at the parts diagram provided by @Banana_oil to determine which is missing. 

6/17/2024 9:22am

I believe so I bought it a few weeks ago from a younger gentleman and the power valve was already like this. And yeah I found the spacer and ordered it but I don’t have the metal lever 

6/17/2024 9:23am

Did you ever have the bike running by any chance?

7/12/2024 1:51pm

Hey I got the bike runnning I’m still just missing that lever piece to hold the spring torsion on. I was wondering if you were the original owner of the bike tho?

kygm2000
Posts
5
Joined
8/19/2019
Location
Saint Cloud, MN, USA
7/12/2024 1:58pm

@williamlozano Are you in MN? I could probably machine one for you if you can't find it. Did you check ebay for it though? Look for the part number on the exploded parts diagram and look it up on ebay or some other used parts site. Could also 3d print one but there is no guarantee that it'll work for long due to heat and torsion...

7/12/2024 6:58pm
kygm2000 wrote:
@williamlozano Are you in MN? I could probably machine one for you if you can't find it. Did you check ebay for it though? Look for...

@williamlozano Are you in MN? I could probably machine one for you if you can't find it. Did you check ebay for it though? Look for the part number on the exploded parts diagram and look it up on ebay or some other used parts site. Could also 3d print one but there is no guarantee that it'll work for long due to heat and torsion...

Yes I did that already I searched all over eBay and every part site no one carries it. They only have a 93 in stock. And I’m in Ca if you made one I would pay for shipping

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