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Old 02-03-2011, 06:28 PM   #1
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1994 EXT 580 EFI charging problem

i bought a 580 efi, its my first sled, and for some reason the battery isnt charging, i checked the stator and the ohm reading is way low, but the sled runs great if you externally charge the battery. so wouldnt the stator make the sled act funny if the hi lo coils were bad. even with a fully charged battery? all the lights and gauges work great, we found a broke ground and fixed that thru a battery that was good and holding around 13 volts when we put it in the sled, went for a 45 min ride took a reading off the sled and it reads 11.5 I bought a used stator off ebay but im only getting a 270 on one and 46 on the other, is the one thats supposed to read 450 ohms the charge coil? and i was told if it was the voltage reg i would be getting blown bulbs but im not getting anything like that. if someone could help that would be great!! thanks
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Old 02-03-2011, 07:51 PM   #2
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You did check the fuse, right?
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Old 02-04-2011, 03:21 AM   #3
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ya fuse is good, and the fuseable links are good to.
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Old 02-04-2011, 04:01 AM   #4
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 Quote: Originally Posted by snowbrd1978 View Post
i bought a 580 efi, its my first sled, and for some reason the battery isnt charging, i checked the stator and the ohm reading is way low, but the sled runs great if you externally charge the battery. so wouldnt the stator make the sled act funny if the hi lo coils were bad. even with a fully charged battery? all the lights and gauges work great, we found a broke ground and fixed that thru a battery that was good and holding around 13 volts when we put it in the sled, went for a 45 min ride took a reading off the sled and it reads 11.5 I bought a used stator off but im only getting a 270 on one and 46 on the other, is the one thats supposed to read 450 ohms the charge coil? and i was told if it was the voltage reg i would be getting blown bulbs but im not getting anything like that. if someone could help that would be great!! thanks
Did you check if the battery is in good condition? I had that problem with my Wildcat 700 EFI.

Check also this link:
http://chadt.us/snowmobile/ArcticCat...1990_-1998.pdf
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Last edited by Tojak76; 02-04-2011 at 04:11 AM.
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Old 02-06-2011, 05:34 PM   #5
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ya weve put 3 diff batteries in it, same deal, how long would it take to kill the battery? i mean maybe its charging but just not to the point it should, we put a battery in it and took a reading at first it was 13.5 when we put it in and rode for about a half hour 45 min then went back to the garage and it reads 11.5
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Old 02-06-2011, 08:47 PM   #6
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The 4 pin connector off the stator has brown wires with 2 eyelets which both must be grounded and the yellow with red stripe diagonally across from the brown. Those are for charging the battery. With the sled running you can unplug that connector and check for raw AC voltage directly off the stator to make sure you're getting at least 14Vac off it. That may not tell you if it's weak though causing a poor charging issue.
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Old 02-07-2011, 07:13 PM   #7
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ok how do i check the voltage at the stator, i just put the new "used" one in today, do i ground the black on the meter and read one y/r at a time or do i check both at the same time. also i unplugged the voltage regulator, and took a reading with the charger hooked up im getting like 13.5 volts from the regulator, but with the charger off im only getting like 9 volts. so would this mean the regulator is bad or the stator isnt sending enough juice to the regulator for it to charge the the battery
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Old 02-07-2011, 07:58 PM   #8
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If the brown ground eyelets are attached to the ground mounting location, then you can put the black lead there and the red to the yellow/red on the connector. The sled should run with a fully charged battery, and you should be able to measure AC voltage directly off the stator. If you've swapped in another stator, likely you can rule out the stator.

I'm a bit confused about the test you're doing with the charger. You're keeping the charger on the battery and unplugging the regulator?
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Old 02-07-2011, 08:50 PM   #9
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ya we left the charger on the battery when we checked the voltage from the regulator, didnt mean to, forgot to take it off. so with the charger on the battery im getting like 13.5 volts, and 9 without. but im thinking that i may have stumbled upon the problem, there are two wires that come from the regulator to the battery a red one with a inline fuse and a brown one, is the brown supposed to be connected to the neg battery terminal? i thought the brown and red were supposed to be both hooked to the positive, but im starting to think that that brown is supposed to be hooked to the neg, just noticed that when i was looking at the oem schematics for battery harness and cables. if that brown is he ground for the regulator it would make sense that its not chargeing if the system isnt grounded. do you know if that brown wire is supposed to go to the neg?
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Old 02-08-2011, 07:27 AM   #10
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There should be 3 brown eyelets all hooked up to a bolt on the engine housing near the recoil.

I just realized (in another recent post) I was wrong about which wires go where. The 2 yellow/red stripe wires go to the DC regulator for battery charging, and the brown to the solid yellow are strictly AC voltage regulation for headlights etc. because it's 2 separate, single phase AC voltages, if the 2 are hooked up together and the phases don't match they cancel each other out.

I thought it was a black coming of the DC regulator going to the negative battery terminal, but you should definitely have one going to the negative battery terminal, not both going to positive.
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Last edited by kev; 02-08-2011 at 07:31 AM.
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