fuel flow meter

[jprohan]

I have a fuel usage meter on my boat; twin 90 four strokes. The gauge works but does not read anything. I know where the sensor is in the fuel line. Is it a big deal to replace this sensor.

 

[Curmudgeon]

Shouldn't be a major problem, assuming you can secure a replacement. Depending on type, make sure the one you have is mounted vertically. Also, try spraying yours with some WD40. There may be a 'wheel' inside that is stuck ...