Trip Meter On Yamaha Gauges

[pauljm]

Hi raiders.....I have a 150 4 stroke yamaha o4 mod. and am just wondering if anyone knows how the trip meter on the gauges works? reason i want to know is that i want to run a separate analogue fuel gauge as the digital fuel gauge is not functioning correctly...my old analogue one used to work fine...we did a big day on sat.(the first time we have taken motor out) and trip meter showed 83 miles at the end of the day which coincided with gps reading.... so how does that work and if i disconnect fuel sender will it affect any other readings on gauges? i am guessing it might work off the speedo reading?Gotta be happy with 83 nm on about 95 litres! Its a long way from the old 2 stroke crossflow! Anyone got any ideas?