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Author Topic: Gauge weirdness  (Read 83 times)

May 18, 2017, 01:53:20 PM
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cdoyal

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Gauge weirdness
« on: May 18, 2017, 01:53:20 PM »
Any idea why my fuel and volt gauges work when the key is turned to acc but go to zero when the engine starts?
1997 245 Explorer w/225 Johnson Ocean Runner

May 18, 2017, 03:37:04 PM
Reply #1

wingtime

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Re: Gauge weirdness
« Reply #1 on: May 18, 2017, 03:37:04 PM »
your keyswitch is going bad... or even the key itself is worn...  Mine does that if I'm using my older key.  The motor can be running but the key is just ever so slightly off of the run position (there is no real accessory position) so the gauges are powered off.  Remember your instruments are part of the engine harness and are separate from the boat wiring. Also outboards ignition is magneto based so they only shut down when the key is switched fully to the off position which closes the magneto circuit to ground and shuts the motor down.  When this happens to you just turn the key slightly to the right into the run position (being careful no to turn it to the start position) and your gauges should come on.  Your key should have a number on it.  Just get that number and go buy a new one from your dealer or order one online.  Also don't have a bunch of junk on your key ring.  The weight of all that stuff hanging from it will damage the switch over time.
1998 Explorer w/ Etec 250


1987 170 w/ Evinrude 90

May 18, 2017, 05:44:11 PM
Reply #2

RickK

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Re: Gauge weirdness
« Reply #2 on: May 18, 2017, 05:44:11 PM »
Who would have thunk.  :?:  What a vast array of knowledge is here.
Good advice Wing.  :nSalute:
Rick
1971 "170" with 115 Johnson (Rebuilding it now)

1992 230 Explorer with 250 Yamaha

May 18, 2017, 05:48:22 PM
Reply #3

cdoyal

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Re: Gauge weirdness
« Reply #3 on: May 18, 2017, 05:48:22 PM »
No kidding! A ton of helpful, knowledgeable folks here. Thank you!
1997 245 Explorer w/225 Johnson Ocean Runner

May 18, 2017, 07:42:10 PM
Reply #4

Woodeneye

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Re: Gauge weirdness
« Reply #4 on: May 18, 2017, 07:42:10 PM »
Encyclopaedic they are.

1981 222 CCP, Westport, MA.