Electrical problem in dash of Seca

1982 XJ750 Seca, dash lights (so you can see speedo & tach in the dark) don't work, and now left signal indicator light has also stopped working. The signal light itself works, just no flasher on the dash. All the other indicator lights (neutral, warning, etc. still work), as do the middle digital column with oil, battery, etc. I have pulled the headlight out & checked all the connections in behind with no luck. Are there light bulbs in the dash & if so, how do I access them? Thanks for your help

 

Thre are bulbs in the instrument cluster. To access them you need to pull the cluster off of the bike (After unplugging the wires inside of the headlight bucket, and removing the speedometer cable) by removing the two nuts that you'll see directly underneath where the headlight mount attaches to the top triple tree (in fact its the instrument cluster bolts that clamp the top of the headlight mount in place).

I find it eaier to remove the headlight bucket as well, but if you have tiny hands you might be able to get to the instrument cluster nuts with the bucket in place.

The Instruments will then pull straight up and you can remove the rear cover in order to access the bulbs.