I just did this.... The whole procedure takes a few minutes longer than taking the tank off and putting it back on.... Good grief.... Things don't last forever, http://www.2wheelpros.com/oem-parts/yamaha-sender-unit-assy-fuel-meter-4wm-85752-10-00-part.html?gclid=CMv_tePlw8wCFVFgfgod-B8Mmw Comes with gasket and shipped fast. Play around with this or that, or take five minutes to put a new one in and ride..... All this time could be used burning fuel somewhere.

Hi ,
I have a 2000 (USA Spec) and 2001 (non USA Spec) RS that have / had the same issues. I replaced the fuel sending unit and cleaned the contacts at the green connector at base of tank . Same results work a while and then quit . Speed O same sometimes work sometimes not . I also Checked connections to meter from main wiring harness per Clymers manual. When rebuilding the 2000 year bike total strip down to frame , I purchased a new complete wiring harness ,tail / brake light harness, speed sensor , neutral indictor sensor, a new instrument panel,complete kuryakan LED headlight assy, left & right handle bar switche ,voltage regulator,signal lights,tail light, Relays and flasher. I did not install the new speedo at first . Worked for about a month maybe then speedo /gas gage started acting up again .Instument lights were still working, nutral indicaor and High beam indicator all working. Rode like that for another 3 or 4 months. Finally installed new speedo / instrument cluster, That was over a year ago have not had any issues yet.

One thing to note , when I was replacing the instument panel , with switch on , headlight on HIGH when I would unplug the old panel the Headlight would get brighter. With New panel , headlight on HIGH , unplug panel , head light would stay the same. When headlight is on high beam with new panel , headlight is brighter than with old panel. Possible short in old panel ?

2001 one bike has the same issues with speedo and gas gage as some owners do. Everything on instument panel works , ie; high beam indictor , nutral indicator , dash lights , and OD indictor all still work. This bike is a non USA spec bike.

eirinn99 wrote:
Since last winter stop I have this small issue with the fuel indicator. When the bike is cold the fuel indicator doesn't work (it remains at the bottom of the scale), and the light doesn't give any blinking error code, but then after a few minutes, when the motor is warm, if I stop and turn on the engine again, then it's working.
I've already tried to clean the contacts into the tank. What else could it be?

My bike has always done that. It takes a mile or two for it to read properly. Also when filling the tank it will take some time to read the correct amount. It is especially bad in the fall and early spring rides. It works just slow sometimes.

So I ordered a new sending unit and got the chance last night to change it. No more blinking light! The bad news is that this morning I could smell gasoline all through the house. There was some seepage around the sending unit gasket. I parked the bike on the back patio and have to drain the tank. See if I can figure where the seepage is coming from. I may take some hylomar and use it to add some extra sealing to the gasket.

When I did mine, I put a thin coat of Black RTV on the "tank side" of the new gasket, as well as on the threads. I let mine cure over night, no leaks.

I did the hylomar last night and let it sit for a couple of hours before I put gas in it. No fuel smell this morning, no blinking light and when I gassed it up the gauge moved to full. The only negative to the whole process was the old sending unit ended up in 3 pieces. The float with the wire bale, the board screwed into the tank and the metal disk with the wire springs on it. I was able to get 2 of them out of the tank.

after two weeks without riding my bike, I'm still having the same problem. Opened the instrument cluster and noticed that the fuel needle was stuck on the bottom position. Do I have to take everything apart to lube the needle shaft?

eirinn99 wrote:
after two weeks without riding my bike, I'm still having the same problem. Opened the instrument cluster and noticed that the fuel needle was stuck on the bottom position. Do I have to take everything apart to lube the needle shaft?


Just throwing out another way to go. I had mounted the HD touring fairing and with the gauge holes already in, I moved my gauges up onto the fairing. I connected the fuel gauge to our existing sending wires and it works fine. I also went to a GPS speedo.....just my $.02

Edge51 wrote:
eirinn99 wrote:
after two weeks without riding my bike, I'm still having the same problem. Opened the instrument cluster and noticed that the fuel needle was stuck on the bottom position. Do I have to take everything apart to lube the needle shaft?


Just throwing out another way to go. I had mounted the HD touring fairing and with the gauge holes already in, I moved my gauges up onto the fairing. I connected the fuel gauge to our existing sending wires and it works fine. I also went to a GPS speedo.....just my $.02

I then installed a decal that Warden had made me to cover up the now redundent gauges on the tank. Now I don't have to take my eyes off the road to check gauges..

Lubed the shaft with some proper oil. Working again!