GS450L Fuel Gauge issue

[Guest]

Have a strange issue with my GS450L. Fuel gauge stays at E until the engine RPM goes up. As the RPM goes up, the needle moves toward F. Has the feel on an electrical issue, but there are no other obvious electrical issues. Headlight is bright and steady, signals work, battery charges, etc. any ideas?

[tom203]

Probably like my gauge,so disconnect the two wires going to tank; measure the resistance of the tank's sending unit (not tho wires going to gauge ). Mine supposedly reads about 120 ohms on "E" dropping to about 1 ohm when "F". try cleaning connections

[barnbiketom]

I would start first, no matter, by checking the charging system. rule it out as a cause. at least put a meter on the battery leads and run the bike, then do the ohms test of the sending unit.
MAYBE the wires are pinched under the tank and vibration changes the reading???

[BassCliff]

Greetings and Salutations!!

Hi,

See if this helps.

Fuel Gauge Send Unit Repair
(by Mr. Jethro)

Yes, you could also be having trouble with your charging system. More information below on testing/replacement of stator, regulator/rectifier, wiring harness clean-up, etc.

And here is your "mega-welcome".

If you are here you probably have a 30 year old motorcycle that needs about 20 years worth of maintenance. In the links below you'll find maintenance lists, documentation, wiring diagrams, "how to" guides, vendor links, tips, tricks, and a whole lot of GS goodness. This is your "mega-welcome". Let's get started.

Let me dump a TON of information on you and share some GS lovin'.

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", "Top 15 Tips For GS Happiness", the Carb Cleanup Series, and the Stator Papers. All of these tasks must be addressed in order to have a safe, reliable machine. This is what NOT to do: Top 10 Newbie Mistakes. 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!

More links to helpful threads in the forum:
Help! Your Bike Won't Start
DON'T DO THESE THINGS
Help! Your Bike Won't Run Well
Oh God! Pods!


Thanks for joining us. Keep us informed.

Thank you for your indulgence,

BassCliff