I have been trying to get this fixed for a bit and can't seem to find the right answers. The gas and temperature gauge are very dim, and could quite possibly be out. Are they illuminated by the two (1.4W X 2) bulbs at the top of the cluster only? Ive been wanting to replace the lights, but can never seem to get a correct or precise answer.

The tach lights up perfect, but the speedo seems a bit dim. Would that be the two 3.4W larger bulbs on the right side? Are these bulbs amber like they seem or are they white?

Last question, what size are those two bulbs at the top of the gauge? SUPERBRIGHTLEDS lists them as 3, 4, or 5mm. How is that measured?