Gauge diagnostics

Hi guys. I got the instrument cluster lights working on my non rallye 70 swinger. Now to the temp and fuel gauge. I test for continuity on the posts and get nothing. I've tried a few limiters and they don't seem to make a difference. However they do have different resistance. I'm thinking my last limiter failed and broke my gauges. Am I supposed to have continuity through the temp and fuel gauge? I need a testing procedure.