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Thread: Help Diagnosing Starter Issue
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05-11-2023, 08:13 AM #15000 RPM
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Help Diagnosing Starter Issue
I have a 225 Mercury Optimax that is having an intermittent starting issue.
When you try to start it, the system will click repeatedly and never crank the engine. As if there was a faulty connection somewhere. Then sometimes it will start normally with not issues.
If I hotwire the starter at the engine with a screwdriver, it will always start with no issues so I'm guessing the issue might be somewhere along the cables going to the starter switch.
Is it possible to test at the harness level so I can confirm the issue is in the cabling going to the switch instead of the engine?
Here's a video of the issue:
https://www.dropbox.com/s/bq16yf1tb1...%20AM.mp4?dl=0
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05-11-2023, 12:22 PM #2
Bad starter solenoid
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pcrussell50, CptAJ thanked for this post
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05-11-2023, 03:57 PM #35000 RPM
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what he said. cheap. easy to change.
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CptAJ, pcrussell50 thanked for this postrgsauger, pcrussell50 liked this post
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05-13-2023, 10:43 AM #45000 RPM
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That seems to have been the issue. I replaced it with another one I had from my old EFI and so far the issue hasn't come up.
Thanks a bunch, guys. It seems obvious in retrospect but I was stuck overthinking it XD
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pcrussell50 thanked for this post
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05-29-2023, 08:15 AM #55000 RPM
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Welp, looks like we just got lucky for a few days with the new solenoid cause the issue is back (Dont you just hate intermittent problems?)
Anyone got any ideas as to what else it could be?
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05-29-2023, 08:22 AM #6
internal corrosion in battery cable..just dealt with it a couple days ago
RockTeam Junk
No sparkling wiggles in here, only dump truck grinches.
"Screamin Heathen"
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06-12-2023, 07:02 AM #75000 RPM
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06-13-2023, 07:15 AM #8
Id run a continuity test on the yellow / red wire. Don't rule out the key switch either. Should be fairly simple to trace it sown now.
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06-13-2023, 07:20 AM #95000 RPM
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Take the old fashion load tester to it check the amperage compared to the battery directly
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06-13-2023, 08:11 AM #10Screaming And Flying!
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I just had the key switch gremlin. Thought it was the solonoid.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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06-13-2023, 07:05 PM #115000 RPM
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If the problem is before the solenoid in the low amp circuit the solenoid will not click. If you hear solenoid click, it is either the solenoid or battery cable-connector issue. The batt cable can give enough 12 volts to run everything in the boat but not pass enough amps to fire the starter. But most likely culprit will be the solenoid.
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