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Old 03-01-2021, 03:38 PM   #1
Golf Cart Surgeon
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Default 1992 ezgo marathon no spark

Hello,

I've got this 1992 EZGO Marathon with no spark....

i replaced the Pulser Coil and the ignitor. Not sure what to do now. Any help would be appreciated.

Thanks
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Old 03-02-2021, 11:44 AM   #2
Dabble Inn
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Default Re: 1992 ezgo marathon no spark

Not that it should make a difference but just curious if you have the 3pg 2cycle or the newer 4cycle?

If it's the 3pg 2cycle I think it should be the same wiring as my 85 2pg, I would check all the ignition wiring for continuity and good connections, especially the grounds.....

Then using a test light grounded to the battery first poke into the orange wire then green wire coming out of the coil while turning it over, I think it's the orange that should be pulsing and the green steady. If good and still no spark I'd have to blame the coil or coil wire........

May I ask why you chose to replace the pulsar and igniter?
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Old 03-02-2021, 04:09 PM   #3
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Default Re: 1992 ezgo marathon no spark

This is the 4 cycle dual cylinder Robin EH29C 295CC engine.

There was an indication that the pulser coil was supposed to send out .5 acv? well it was less so i switched it.

Had an extra ignitor so swapped it and... still no spark.
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Old 03-02-2021, 08:01 PM   #4
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Default Re: 1992 ezgo marathon no spark

The pulser should ohm from 19 to 21 ohms. Did you check it before you changed it out ?
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Old 03-03-2021, 12:27 PM   #5
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Default Re: 1992 ezgo marathon no spark

Yes it's at 20
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Old 03-03-2021, 12:28 PM   #6
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Default Re: 1992 ezgo marathon no spark

I guess I need to know what voltages i'm supposed to have around the cart... checking everything.
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Old 03-03-2021, 12:33 PM   #7
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Default Re: 1992 ezgo marathon no spark

Quote:
Originally Posted by Golf Cart Surgeon View Post
Yes it's at 20
The pulser is good.
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Old 03-03-2021, 01:22 PM   #8
trig123
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Default Re: 1992 ezgo marathon no spark

Quote:
Originally Posted by Golf Cart Surgeon View Post
I guess I need to know what voltages i'm supposed to have around the cart... checking everything.
If you remove both small wires from coil and spin engine over you should have around around 11 volts on one. Not sure what color wires was on the 93. Maybe white and red ? if so the white one will have the 11 volts when spinning over disconnected from coil. Red wire will have no voltage when not connected if you spin it over.

If all is working correct then when you connect both red and white wire back to coil your meter will read this
White wire connected to minus post on coil should read around 12 volt when spinning over.

Red wire connected to plus post should read around 9 volts when spinning engine over.

I would be checking the plastic connector where your pulser plugs in coming from under fan. Wiggle it.

Also make sure the black wire from ignitor is grounded good. Red wire going to ignitor has power and the orange wire with white stripe is connected good to small terminal on solenoid.
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Old 03-04-2021, 10:33 AM   #9
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Default Re: 1992 ezgo marathon no spark

Hey thanks for the response, i'm going to try to work on this tonight and see if I can find something. A buddy of mine mentioned the timing belt could be off, so i'm looking at that too to see if it's loose or broken on the wheel.
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Old 03-04-2021, 12:16 PM   #10
Dabble Inn
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Default Re: 1992 ezgo marathon no spark

Quote:
Originally Posted by Golf Cart Surgeon View Post
This is the 4 cycle dual cylinder Robin EH29C 295CC engine.

There was an indication that the pulser coil was supposed to send out .5 acv? well it was less so i switched it.

Had an extra ignitor so swapped it and... still no spark.

Oooops for my post above, it's a 4cycle. As Gilda Radner used to say "Nevermind" lol.....

Glad to see you're getting professional help from Trig, he'll take good care of ya.
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