Low Fuel Light question
05-17-2010, 01:42 PM
#1
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Superstock
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Join Date: Feb 2009
Location: Nebraska
Posts: 342
Low Fuel Light question
I was looking to wire up a low fuel light on my hawk, but I've never had one. It looks like they're an LED on the 98-00 model... but they have three leads. Is it a muticolor led? Like green when you have fuel and red when you don't? Thanks a lot.
05-17-2010, 07:06 PM
#4
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MotoGP
Join Date: Nov 2006
Location: Skurup, Sweden
Posts: 6,109
Yes, its just one LED...
But it's 12V going through a resistor in the tank that senses not being in the gas, going too the gauges where a small board drives the resistor... The LED does not like 12V and making the circuit to have a change in resistance turn on a LED means you will need new LED's fairly regularily as they will go POP! They aren't too fond of changing voltage... Or you need at the very least a transistor in there and some other parts... I can probably make the circuit fairly easy... (It's my work to design circuits, on a whole different scale though)...
If you look in the exploded view of the gauges in the first page of the "lights/meters" part of the service manual you see a small circuit board wedged between the two clocks... Thats the RLOD circuit...
But it's 12V going through a resistor in the tank that senses not being in the gas, going too the gauges where a small board drives the resistor... The LED does not like 12V and making the circuit to have a change in resistance turn on a LED means you will need new LED's fairly regularily as they will go POP! They aren't too fond of changing voltage... Or you need at the very least a transistor in there and some other parts... I can probably make the circuit fairly easy... (It's my work to design circuits, on a whole different scale though)...
If you look in the exploded view of the gauges in the first page of the "lights/meters" part of the service manual you see a small circuit board wedged between the two clocks... Thats the RLOD circuit...
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