No spark
Mar 26, 2022 16:20:13 #
szulecki
Loc: Central New Jersey
Hello All! Can anyone help with an issue with my 1989 80 hp Mercury outboard motor. I am not getting spark. Is there a way to check the CDI box and stator? Help needed, Greg
Mar 26, 2022 16:45:05 #
Make sure the neutral safety switch is good. If there is no spark when you turn key and engine turns over. You can get a tool or just use a spark plug. Make sure any and all electrical connections are clean and not corroded. Any of the connections can also have a broken wire or bad connection therefore causing no primary voltage to the coils. If you have basic knowledge of automobile electrical circuits outboards are very similar. I compare them to lawnmowers actually.
Mar 26, 2022 16:46:41 #
Make sure the neutral safety switch is good. If there is no spark when you turn key and engine turns over. Resistor wire may be bad. You can get a tool or just use a spark plug. Make sure any and all electrical connections are clean and not corroded. Any of the connections can also have a broken wire or bad connection therefore causing no primary voltage to the coils. If you have basic knowledge of automobile electrical circuits outboards are very similar. I compare them to lawnmowers actually.
Mar 26, 2022 16:48:36 #
Mar 26, 2022 17:32:10 #
szulecki
Loc: Central New Jersey
Thanks for the info, but can you test these connections with a volt and ohmmeter?
Mar 26, 2022 17:42:49 #
szulecki wrote:
Thanks for the info, but can you test these connections with a volt and ohmmeter?
Yeah. Should have battery voltage unless you probe something after the resistor wire. Then it will be 8 or 9vdc.
You can research how to check coils for continuity. Usually the problem is primary voltage or possibly the stator.
A few guys on fishingstage have had a problem with the controller box ( whatever Mercury calls it on that model)
If you have a pulsing primary voltage when turning it over and there is no spark I would say it’s the box. If you have no pulse but you have ignition voltage then the stator is bad or a wire is broken / bad connection
Mar 27, 2022 18:53:51 #
And Marvin
Loc: Lawrence, Ks
Sounds dumb but check your kill switch. We we’re getting ready to pull the boat out of the water in Canada and were calling a shop in town {1 1/2 hrs 1 way). Guy came down the dock said he didn’t want to be a smart ass but had we checked the kill switch..
flipped it off back on and motor started.
Just saying
flipped it off back on and motor started.
Just saying
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