Gas gage

[Kendicott1]

I have a '66 Toro, the gas has started acting erratic. There's aprox. 1/4- 1/2 tank of gas but the needle has started to flucuate all over the place, it evens goes past Full & disappears up into the top of the gauge, but then comes back down & repeats the whole process! Any idea what the problem is, thank you!

[Otto Skorzeny]

Check your ground connections first. Fluctuating gas gauge is usually caused by an iintermittent ground in the system.

Run a test wire bypassing the existing wiring and see if anything changes.

You may also have a float sticking or sending unit arm hanging up.