Gas Gauge

[Kurtsuncle]

Ok so we're out crusing and the gas gauge jumps from 3/4 to empty. We had plenty of gas and we didn't hit any wake from any other boats. Can anyone help me out otherwise I'll have to give the guys at mid-ohio nautiques a ring. Thanks.

[DRAGON88]

First, gas gauges are crap, plain and simple they are very very inacurate... My gauge died on me too, sometimes you just need to clean the contacts on the gas gauge (sender on the gas tank its self), to do this find your gas tank (in the sport nauti its behind the seat) and theres a little metal thing with 2 wires coming off of it, remove the 2 wires and clean off the contacts. if that doesnt work then you might have a bad gauge (gauge sender) that needs to be replaced.

Good Luck!

[lcap]

You most likely have a Teleflex Gauge and Sender, this is the procedure to check the gauge and sender.

The Teleflex fuel gauge and the level sender are designed to operate on 240 ohms (empty) and 33 ohms (full). Most other manufacturers build a marine fuel level system of the same resistance as gauges and senders may be mixed at the boat builder level. There are only three components to the system-gauge, level sender, and the connecting sender wire. The sender wire should be inspected for breaks in the copper or corroded connection to the terminals.

The fuel gauge can be inspected in the following manner. Turn the ignition on. Remove the sender wire from back of gauge. Pointer must go below the empty mark. Next, connect the gauge sender terminal to ground. The pointer must go above the full mark. If the pointer moves past both E and F, the gauge is functional. To check the fuel level sender remove wires from sender terminal. Connect volt/ohmmeter to two sender terminals (digital ohmmeter will tend to be jumpy). Ohmmeter should read approximately: 1) 240 ohms @ empty 2) 100 ohms @ 1/2 and 3) 33 ohms @ full. If the sender is not sized properly for the tank, errors in gauge reading can also occur.