What kind of bulbs are in my gauge cluster?

[Fyarl666]

I have an 81 GS400L, and I’m trying to replace all the old incandescent bulbs in the gauge cluster with equivalent LED bulbs.

First off, anyone know the part number for the existing incandescent bulbs? My service guide only shows the proper wattage and not the bulb number.

Second, does anyone know the equivalent LED bulbs to replace the old style?

They’re bayonet style bulbs that twist and lock into the bulb sockets, and I have seen similar LED bulbs on Amazon but I don’t want accidentally buy the wrong kind.

[Grimly]

As an '81 bike it might be fitted with the wedge-base bulbs.
Pre-80, the bikes used bayonet cap instrument bulbs with a BA9 base.
Either are easily found - look on Amazon or some specialist auto bulb supplier.
The original bulb wattage was around 2W or so. If you find the LEDs too bright you can dull them down with a marker.

[Fyarl666]

After a little bit of google-fu i discovered this style of bulbs is a BA9s bulb. A quick search on Amazon and I’ve found stacks of LED BA9s bulbs for cheap.

Problem solved!!