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Motor does not kick over on first/second try

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Motor does not kick over on first/second try

Old 10-21-2019, 03:08 PM
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Default Motor does not kick over on first/second try

Have a 2016 Mercury motor in good shape with two year old battery on boat. Spring through Fall boat motor has started first time key switch was turned. Now I've only put 15 or so hours on the boat this year so not a lot of use, but battery was fully charged in early Spring. But last two times out when I turn ignition key I get a beeping sound but motor stayed silent. Run switch is always turned on before starting motor. When key is turned on you hear an "odd beeping noise" but motor doesn't crank or turn over. Second, third try does same thing. Then finally on fourth or fifth attempt motor starts. Any suggestions what the problem could be since I feel a four year old Mercury motor with 120 hours on it and a two year old battery should crank over/start up on first attempt. I should also mention spark plugs are four years old.

2016 Mercury Marine 115 HP EXLPT EFI (4 stroke)
Old 10-21-2019, 04:29 PM
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Not enough info , you may have a parasitic draw . Have you tried charging the battery ? Have you tried putting a jump box on it before hitting the ignition switch Do you have a battery switch ? Batteries over time in many cases will lose amps . Don't know how many times I have seen a car in a body shop that was there for a few weeks that needed a jump or charge when the job was done. At the very least [ if you don't know what your doing ] the battery should come out and taken to a auto shop that can put a load on it to see if it's shot or not.
Old 10-21-2019, 04:32 PM
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Check the grounds.
Old 10-21-2019, 04:58 PM
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A bad battery wouldn’t get better on the fourth or fifth try, duh....... bad ground, great thought, but they don’t usually get better either........ could possibly be voltage drop due to a long harness and a light gauge start lead....... check for 12 volts at the start lug on the starter when you try to crank it....... I’m going to imagine you’re not seeing enough volts/amps. Common issue, look at yanmar’s fix for the 4LHA’s. Could also just be a tired solenoid. Good luck. 💋
Old 10-21-2019, 05:18 PM
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bad ground and/or corroded battery cables.
Old 10-21-2019, 05:36 PM
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Choke it
Old 10-21-2019, 05:57 PM
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I had a similar issue and it was a bad connection (corrossion) at the battery posts.

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