The current springs are a full 421 mm, seem to be in good shape. I haven't done a static sag test yet, but I'll do that tomorrow. It was a good sign that the bike had tapered roller steering head bearings, packed well in new red grease, races in perfect shape, as well as bearings. Most of the things the PO claimed to have done were half-fast. He couldn't how to figure out how to time the bike; well when he had left out the reference plate with the timing marks, DUH! He said he had put in a DJ stage3 kit, but the parts were all in with the "spares". He also had a tuning manual for CV carbs; the GS 1000 has VMs. I've doublechecked or rebuilt just about every system on the bike. The forks were a mess, had rust on the retaining washer and circlip, and water in the left fork. At speed (about 70 mph) it wobbled so much it seemed to want to throw me off. They're in good shape now!