Air Cooled with an Oil Cooler is fine unless you plan city stop and go in high temps. I've got 124K (or is it 127?) on my 79 Yamaha, cant remember what oil I used back in the 80's, but I switched to Golden Spectro about 91 or so and have used it exclusively since. Good oil, proper care go a long way.
I think that winter storage makes a big difference, those who store/park the bike with the prior seasons oil will have problems long term, as acids, deposits can gum up and eat away at the alloys over the winter. I've always put my bikes to sleep with a fresh oil change and tank full of stabilized fuel. Never had a problem with Carbs, Engine or rust in tank. 24 years and counting on this one bike at least. I'll get back to you guys after 24 years with my Speedmaster to see if the same holds true. I think it will ;-)
Last edited by Bulldog9; 06/07/2008 9:03 AM.