most electric guages measure in milliamps/millivolts,resistors are dropping resistors used for matching voltages to guage faces,or max readings.In other words,say you had a temp guage that read 0-100,and another one that read 0-200. by changing resistors i could use the same movement in both, and just change face on guage.Odd that the no's on wires change from page to page on your wiring diagram.are you positive on this?not saying it cant happen,but I personally wouldnt trust any of your diagram if this were the case.Its been a long time since I messed with one but I seem to recall the guages on those old trucks ran at something like 2 volts and had a dropping resistor in the circuit some where that fed them all also,if so dont forget it or you may burn up all your hard found guages.also this resistor had a habit of opening up and all the electric guages would quit at once,while mechanical ones still would work.also remember that if you change from say 6v to 12v you will have to adjust this resistor accordingly.good luck!
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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