'85-'86 chain tensioner

[dirtface]

Just picked up a "Caliper" brand chain tensioner that is suppose to be for a 1985-1986 250R. But I am not sure how it mounts. Does anyone have a picture of one mounted? Even not mounted on a bike would be great. I am not sure that it is even for this bike. Any info would be greatly appreciated.

[dirtface]

Here is the Ebay auction number.#220107786438

[Liquid-Darkness]

I dunno, I always adjust my drive chain by turning the rear swingarm bearing carrier.