general electrical component question

[dynaglide]

Given my current frustration, and the track record of this particular bike, am I better off replacing all "failable" electrical parts (e.g. ignition switch, sensors, relay, etc.) as "preventative maintenance" rather than waiting for them to fail one-by-one and go through the pain of trying to diagnose what went wrong each time?  The bike is 13 years old...

[surf]

I've done it with  some less expensive parts while I was in that area. My bike has 129,000 miles on it too and I plan on keeping it forever. If you do, change them one at a time to find out which is bad, then save the good ones for spares.

Worth it if you intend on keeping the bike.

Some parts are expensive, ignition switch, TSSM-TSM. If you have the DTT ignition and still have the stock one, try swapping them. If you don't have a spare, used ones shouldn't be to hard to come by.

The ignition switch is easy to by-pass, just looking for a way to tie all 3 wires together to send power to ignition and elsewhere.

That leaves TSM-TSSM. Probably the most expensive. I haven't been in any hurry to buy one of them yet. When I was working on the '01 I had here, I was getting ready to test for 12v from TSSM to Speedo and so on, looking for continuity and broken wires.