rbowes1
Member
The fuel gauge on my ‘91 XP resto project wasn’t working, the gauge tested OK (0 ohms = full, 100 ohms = empty) but the fuel sending unit was corroded and falling apart.
So I ordered an aftermarket KUS fuel level sensor (10” was the right length for my tank) the 240-33 ohm version.
Amazon.com : KUS USA SSS Fuel & Water Level Sensor, 10" : Sports & Outdoors
Now the stock sea-doo sensor is 100 ohms empty and 0 ohms full and because of this difference the gauge does not read properly. The KUS sensor has a resistance is 33 ohms full so the gauge only shows 2/3 full, and when the tank is around half full the gauge shows empty.
My solution was to use a 660 ohm resistor in parallel with the sensor and 3 diodes in series with the negative power supply wire to the gauge. This more or less lines up the range of the sensor and the gage.
Here is the schematic, note I actually used three 220 ohm resistors in series to get 660 ohms.
Here are some pics…
So I ordered an aftermarket KUS fuel level sensor (10” was the right length for my tank) the 240-33 ohm version.
Amazon.com : KUS USA SSS Fuel & Water Level Sensor, 10" : Sports & Outdoors
Now the stock sea-doo sensor is 100 ohms empty and 0 ohms full and because of this difference the gauge does not read properly. The KUS sensor has a resistance is 33 ohms full so the gauge only shows 2/3 full, and when the tank is around half full the gauge shows empty.
My solution was to use a 660 ohm resistor in parallel with the sensor and 3 diodes in series with the negative power supply wire to the gauge. This more or less lines up the range of the sensor and the gage.
Here is the schematic, note I actually used three 220 ohm resistors in series to get 660 ohms.
Here are some pics…
