slimcolo wrote:To me reliability has two parts
1) the dependability of the bike it self
2) the ability to find parts over the lifespan of the bike (aprox 30yrs)
The parts for older japanese bikes are almost non existant. Older HD parts are only from aftermarket sources. Most manufactures view anything over 10 yrs old as obsolete. (the Government req. for stocking replacement parts) BMW seems to be the only one that has parts for older bikes. With the complex systems and electronics on modern bikes parts problems will become greater as these bikes age. In 20 years ,when a module burns out will you be able to buy a replacement? Right now I can get aftermarket parts for HD and INdian going back to the 20s but I cannot get most parts for my 83 Honda! (after 6mo I found a brake cable on E-bay)
I've got a 21 year old Japanese bike (Yamaha) and I can order OEM Yamaha parts from any of a dozen websites or any of 3 Yamaha stores in my area. Plug wires, coil packs, ignitions, instruments, air boxes, driveshafts, clutches, brakes, rotors, wheels, controls, tranny gears, gaskets, etc. No problem.
Head over to ViragoTech.com and see dozens of people with 25 year old Yamahas who also have no problem finding replacement parts for their Yamahas.
The situation appears to be similar with Honda. Just for giggles, I looked up at least 4 different 1983 Honda models at MrCycles.com and they appear to have virtually every part available, along with digital versions of the Honda schematics and updated part numbers for obsoleted parts.
This discounts the large volume of used parts that are relatively easy to find on eBay and similar sites.
So, to answer your question, yes, replacement parts are easy to find on 20-30 year old Japanese motorcycles. If you're having trouble finding replacement parts for your 1983 Honda, send me a PM. I'll help you find what you're looking for. It's not that hard. I see a variety of 1983 Honda brake lines here for $40 or so. I'm not really sure what a brake cable is, but I'm sure they have those too.