fuel gauge not working

[stingger]

hi, i have a 81 gs 650 and my fuel gauge shows almost full all the time. any idea on were to start on how to fix this? tank,wire,power or gauge? i just got the bike and i was told it was sitting up for a bit and not rode much over the last 2 years. thanks

[Adler]

perhaps the float arm is stuck in place? Maybe give the tank a good jolt, and if that doesnt work, take out the sending unit and give it the once over. I think there is a guide on Mr. BassCliff's site.

[stingger]

Mr. BassCliff's site? im new to the bike world. i jolted the tank a few times with no luck.

[bonanzadave]

Mr. BassCliff's site?

http://members.dslextreme.com/users/bikecliff/

Check over the quick connects you undo when you remove the tank. The bullet connectors may need cleaning or soldered to the wires.

[stingger]

man i wish i knew of that site when i did my carbs. thanks

[BassCliff]

Greetings and Salutations!!

Hi Mr. stingger,

Welcome to the party that is GS ownership. You'll find lots of GS lovin' here and on my little website. Let's get the party started!

I just stopped by to welcome you to the forum in my own, special way.

If there's anything you'd like to know about the Suzuki GS model bikes, and most others actually, you've come to the right place. There's a lot of knowledge and experience here in the community. Come on in and let me say "HOoooowwwDY!"....

Here is your very own magical, mystical, mythical, mind-expanding "mega-welcome". Please take notice of the "Top 10 Common Issues", the Carb Rebuild Series, and the Stator Papers. Now let me roll out the welcome mat for you...

Please click here for your mega-welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike!

Thanks for joining us. Keep us informed.

Thank you for your indulgence,

BassCliff

[Ranger]

If you figure it out please let us know what you found!

Mine doesn't and hasn't worked since I bought it, followed everything on BassCliffs sight with no luck.

[silverhelme]

I found on my 82 750E that the wires connecting to the back of the gauge were corroded. I cleaned those and the gauge now works but I need to go into the tank and adjust the sending unit.

[tom203]

hi, i have a 81 gs 650 and my fuel gauge shows almost full all the time. any idea on were to start on how to fix this? tank,wire,power or gauge? i just got the bike and i was told it was sitting up for a bit and not rode much over the last 2 years. thanks

Disconnect wires going to tank ( no need to remove tank- you'll see them near petcock), does fuel gauge drop to empty? (ignition on)
The tank sending unit should have about 100 ohm resistance when empty and maybe about 1 to 3 ohm resistance when full. You good have bad contacts or stuck float- how clean is your tank inside?

[stingger]

ok i'll check that this week, ranger i'll keep it posted on what i find thanks

[stingger]

tank is clean. and with key on and wires unpluged it stays the same , hand dosn't move

[tom203]

tank is clean. and with key on and wires unpluged it stays the same , hand dosn't move

Then, since gauge is stuck on full, I'd suspect the needle is frozen ( corroded)- it should have dropped when you unplugged those wires. .

[Steve]

hi, i have a 81 gs 650 and my fuel gauge shows almost full all the time. any idea on were to start on how to fix this?

Ride the bike, burn some gas.



.

[stingger]

well i took it apart and cleaned the ends and the hand wasn't stuck, put it back togethere and still it just stayed were i left it. i think its gone bad. i did go for a 20 mile ride and it ran great.

[chuck hahn]

take a piece of wire and connect the two ends of the wire harness that the fuel sending unit plugs into in the harness and watch the guage..if it goes up the guage is good and the problem is in the sending unit in the tank. If thats the case then on the sending unit you will see where the wires pass thru a hard plastic disk to get into the tank. Check the soldered connections there..thats the most common place they come loose. resolder both sides and with the sending unit out of the tank hook it up and move the float arm and watch the guage..let us know what happens.