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Post by duff on Jul 25, 2018 20:41:18 GMT -5
Fished Saturday...ran great.
Attempted to fish Sunday and never left the dock. Fired maybe 3 times but died. Mainly no fire. It is a 98 30hp evinrude
Monday changed plugs
Tuesday hooked it up to water and no fire. shot starter fluid...nothing
Today I pulled the plugs to check spark...not even a glint. Both plugs dead.
Is there a posibility lose wire?
any ideas?
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Post by esshup on Jul 25, 2018 22:56:24 GMT -5
Just a guess here. I'd look deeper into the ignition system to see why it's not getting spark. Since there's more than one cylinder that is not getting spark, I'd look at what furnishes spark to all the cylinders.
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Post by duff on Jul 26, 2018 4:02:36 GMT -5
yep. youtube gave me a few starting points. the fact I was getting a spark once in a while was throwing me. Loose wire? If stator goes bad does that result in no spark or just weak spark?
after work I will dig into it a bit deeper.
Maybe new to me boat!
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Post by drfleck on Jul 26, 2018 10:47:12 GMT -5
Pretty sure that motor uses c.d.I. or capacative discharge ignition. Your stator creates electrical current which charges your power pack. Inside the power pack are two capacitors which charge and then discharge to fire your coils. The problem with trouble shooting the power pack is that the discharge is so quick that you need a special peak to peak reading voltmeter to capture this spike. A regular volt meter won't do it. I think you should be able to check the resistance of your stator with a meter( consult service manual for acceptable resistance reading ) as well as visually inspecting the coils and making sure they're not burnt. If your motor has a rectifier/regulator which is used to recharge your starting battery and the recifier/regulator goes bad this can cause damage to the stator over time. Motor will still run but won't charge battery. Excess current creates heat which damages stator. One more thing I just thought of...with your meter set to AC volts you should be able to test the stator output when you crank the motor. Do this right where the stator wire connects to power pack. Library has service manuals. Hope you get her fixed.
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Post by catmandan on Jul 26, 2018 11:25:31 GMT -5
Don't do what I did and accidentally bump off the emergency kill switch.
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Post by featherduster on Jul 26, 2018 16:41:08 GMT -5
Wave the white flag and take it to a marine repair shop.
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Post by dusty20 on Jul 26, 2018 19:20:39 GMT -5
Check grounds for corrosion. I have an electronic ignition on my 82 and had a heck of an arking issue due to some corrosion. Cleaned it off and all is good.
Maybe like a car try firing it up at night without light to see if you can see a spark arking somewhere other than the plugs.
I don't know a ton about that ignition but if something is actually generating spark it's high voltage and generally finds somewhere to land if not through the spark plug.
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Post by duff on Jul 28, 2018 17:01:27 GMT -5
never over think a problem.....if you are going to be dumb, better be tough! I was ready to buy a new boat...lol.  |
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Post by featherduster on Jul 28, 2018 17:13:09 GMT -5
I was going to suggest something as stupid as that but I didn't want to make anybody feel dumb  . |
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Post by duff on Jul 28, 2018 17:16:53 GMT -5
I was going to suggest something as stupid as that but I didn't want to make anybody feel dumb . good job! |
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Post by nfalls116 on Jul 28, 2018 17:21:58 GMT -5
I was going to suggest something as stupid as that but I didn't want to make anybody feel dumb . Duff is pretty sensitive |
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Post by jimstc on Jul 29, 2018 15:27:27 GMT -5
Pretty sure that motor uses c.d.I. or capacative discharge ignition. Your stator creates electrical current which charges your power pack. Inside the power pack are two capacitors which charge and then discharge to fire your coils. The problem with trouble shooting the power pack is that the discharge is so quick that you need a special peak to peak reading voltmeter to capture this spike. A regular volt meter won't do it. I think you should be able to check the resistance of your stator with a meter( consult service manual for acceptable resistance reading ) as well as visually inspecting the coils and making sure they're not burnt. If your motor has a rectifier/regulator which is used to recharge your starting battery and the recifier/regulator goes bad this can cause damage to the stator over time. Motor will still run but won't charge battery. Excess current creates heat which damages stator. One more thing I just thought of...with your meter set to AC volts you should be able to test the stator output when you crank the motor. Do this right where the stator wire connects to power pack. Library has service manuals. Hope you get her fixed. I continue to be amazed at the knowledge on this forum. Very, very impressive analysis. Wow! |
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Post by esshup on Jul 31, 2018 7:54:56 GMT -5
never over think a problem.....if you are going to be dumb, better be tough! I was ready to buy a new boat...lol. Duff, you and my Dad would have gotten along very well. Dad installed a slow blow fuse in the ignition system of his 1969 Dodge Station Wagon. It would allow the car to be driven a few miles before blowing, stopping the car. Home grown anti-theft device. Dad left work one day, and the car died. Tried all he could to get it running. Called Mom to come and flat tow him to the dealer. (you can imagine how well THAT went.....) As she's waiting for him to come out of the dealer for a ride home, he drives out of the service area. Yup, he forgot about the anti-theft device he installed in the car. |
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