I'm lost. Turn signals and gauges

[lemongarage]

Bought my 85 earlier this year, the left turn signals worked for a little bit, right signals not at all. Now none of the signals work. I've checked the fuse, it's good. Checked the bulbs, they're all good. Snapped my clutch cable, so when I replaced it I went ahead and took apart the left hand controls and inspected everything. It's all clean, working and clicking fine mechanically, and I cleaned up the contacts while i was in there. Still dont have any turn signals and I'm not sure where to look next.

The speedometer and tachometer backlights didnt work when I bought it. Found out when I was riding home at night, unaware of how fast I was going. Havent been able to find a replacement for them. Any leads?

[knoizy]

Can't come good on the details here without checking in the garage but I've definitely been through a few replacement flasher relays that were the wrong spec and just didn't work properly. Also remember there's that auto-cancel feature on the signals that usually just stops working but this doesn't affect manual control, have you tried a basic continuity test from the front terminals backwards? I think the backlights are standard dash bulbs as well. 

[lemongarage]

Haven't done too much diagnosing yet. I found out that the front lights still come on with the bike, but the rears don't come on at all. Gonna replace the bulbs when I get a chance and hope I get lucky.