Serowbot wrote on 03/03/11 at 22:16:24:So, but why will the light go on when you find the short
Ok, so you plug in a 12v bulb into your fuse box, it lights up. that bulb is made to handle 12v and the highest rated bulb on your bike is about 33 watts. p=iv ohm's law. 33=i12, i=33/12 about 3 amps. When the light is burning bright, you gotta short, when it's dim, normal. to be continued
Quote:and not be on otherwise?... if the short isn't happening, isn't the circuit normal?,... positive, to fuse/bulb, to ground, and bingo... light is on!
Why is the bulb dim? Ohm's law... v=ir, 12=i(resistance of the bulb plus whatever else is on the same line), from above 12=i(4+?) Lets say it's a line to the lights in the speedo, so 12=i(4+8) assuming the wattage of the indicator lights is twice the resistance. i= 12/12, i=1 amp, the light will be half as bright.
Quote:When the short is contacted,...positive goes straight to ground and fire ensues, wires burn, bad bad smells, and no more light...
... or,... if the bulb keeps the current at a safe value, preventing this,... why don't we use bulbs instead of fuses, and never have this problem in the first place...
You remember that anemic magic sh!t box? darn thing shuts down at 10v. That light bulb fuse will steal voltage from the CDI box you'll have a dead savage.
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