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PostPosted: Tue Jul 11, 2017 12:25 pm 
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Tadpole

Joined: Tue Jul 11, 2017 10:51 am
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Anyone ever deal with loss of electrical power to ignition switch and all instr. gages? I recently opened up my 1987 FW 170 Horizon boat to prep it for the lake and discovered I do not have any battery power to my ignition switch or the instr. gages or any switches(bilge pump, horn, lights, etc.). I tried resetting the breaker in engine compartment but to no avail. I tried moving outdrive up/down and found it works. In addition while turning key switch on I moved the throttle to insure I was in neutral position but still nothing. Next move is to start with a meter and checking for voltage at various locations in wiring(I have an electr. schematic). Looking for some specific pinpoint locations that maybe would narrow my diagnostic checks. Thanks


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PostPosted: Tue Jul 11, 2017 2:35 pm 
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Livin' the Dream
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Joined: Thu Sep 29, 2016 9:23 am
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Location: Pontoon Beach IL
Snoopyf150 wrote:
Anyone ever deal with loss of electrical power to ignition switch and all instr. gages? I recently opened up my 1987 FW 170 Horizon boat to prep it for the lake and discovered I do not have any battery power to my ignition switch or the instr. gages or any switches(bilge pump, horn, lights, etc.). I tried resetting the breaker in engine compartment but to no avail. I tried moving outdrive up/down and found it works. In addition while turning key switch on I moved the throttle to insure I was in neutral position but still nothing. Next move is to start with a meter and checking for voltage at various locations in wiring(I have an electr. schematic). Looking for some specific pinpoint locations that maybe would narrow my diagnostic checks. Thanks


Can you post a pic of the schematic?

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PostPosted: Tue Jul 11, 2017 3:28 pm 
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email admin your custom rank

Joined: Thu Jun 29, 2006 10:26 pm
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Location: Long Island NY
I had this problem one year and it was the ignition circuit fuse; it was oxidized enough to not allow current to pass. No gauges no engine crank. Tilt n trim still worked. Try replacing the fuse.

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88 Four Winns 200 Horizon
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2002 Walker Bay 10/2012 Suzuki 2.5
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1998 Jeep Grand Cherokee 4.0/Selectrac
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PostPosted: Tue Jul 11, 2017 5:00 pm 
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Livin' the Dream
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Joined: Thu Sep 29, 2016 9:23 am
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Location: Pontoon Beach IL
LouC wrote:
I had this problem one year and it was the ignition circuit fuse; it was oxidized enough to not allow current to pass. No gauges no engine crank. Tilt n trim still worked. Try replacing the fuse.


That was my first thought, a blown fuse

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Current:
2000 Sea Ray 380 Sundancer "still Livin the Dream"

Past
2002 268 Vista 5.7 GXI "Livin' the Dream"
1996 Rinker 192 Captiva. "The Simple Life"
1999 Yamaha XLL 1200 Waverunner.
1976 Mercury Marquis tri hull 120 hp


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PostPosted: Tue Jul 11, 2017 6:17 pm 
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Joined: Thu Jun 29, 2006 10:26 pm
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Location: Long Island NY
Even if the fuse is not blown; oxidation can cause enough resistance to stop a circuit from working...
Don't forget to clean off the oxidation from the fuse holder contacts...

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88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II


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