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1986-1991 Remote Reservior Shock Rebuild Parts Availability;

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OK, so I am at a stopping point on my project due parts availability which I could use some help with.

The internal shock body looks to be fine, the bladder looks fine, so I don't need a new one of those.

I can get a new seal head from a variety of sources, as well the rubber bumper from Honda, however I can not for the life of me track down the piston ring, nor the o ring that goes behind it. Although the piston ring does not look to bad, seeing as the seal head was hammered pretty good, I thought it would be a good idea to change the piston ring as well.

I can not find a replacement for Part #52431-KA3-731 anywhere. I have been to the Kayaba website, Race Tech, Ebay, I can not find one anywhere. Looks like Kayaba made a 40mm piston ring for the YZ80's/85's several years back, other than that, I have come up empty.

Anyone have any ideas ???

Thanks Michael !!!

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Specs; Piston Ring - 39.86mm / Seal Head Body 39.98 mm Piston Ring w/o uninstalling - ~ 40mm Diam / 8.13mm Tall

I won't know what the thickness is until I remove from Shock Shaft.

Michael

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