This site is awesome. I was just working on my 186d because the throttle was sticking open, return spring up at lever wouldn't return throttle. Fixed it with a little blaster where the throttle lever enters the injector pump, but found this "other" lever, which appeared to be missing a cable, oh no! Better check TBN, and sure enough there it is, completely normal and fine for the 186d, with pics to boot.