I have an '83 GL1100i as well. With these 25 year old beauties, age may be a bigger factor than straight forward mechanical problems. Seals, exhaust condensation/rust, steering head, brake lines & stuff like that. Has the oil & filter & other gear oils been regularly changed? That's probably the biggie. My GL has 108,000 km (~65,000 miles) on it, and just now I'm beginning to experience some age related expenses. But I've owned my bike for 20 years, know it well, and stay on top of these things. It's good to go for a long time yet. Hope this helps.