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Snowweasel 02-12-2012 02:24 PM

1978 arctic cat jag
just got a free 1978 arctic cat jag 3000. seat is junk, no hood, and just generaly beat up. doesnt run cuz its got no spark. when i took a closer look there are a bunch of random wires that have been cut. does anyone have a link to a wire diagram for this sled?

thank you

polymoog 02-13-2012 06:24 AM

Try this link :

Alpha Sports - Arctic Cat Snowmobile Catalog

1978 --> Jag 3000 --> Console & Wiring

Does that help?

They also have a diagram called Electrical but that doesn't show that much, but it might be what you are looking for

Have you tried unscrewing the spark plugs and just laying them to one side (still connected to the caps), then pulling it over to see if you are getting a spark to both plugs?

Snowweasel 02-13-2012 07:31 AM

This may work. Do u know if for vintage sleds there are color coded diagrams?

Ya, I tried putting a new plug in the cap and laying I on the head. No spark. I even noticed that the wires to the key are gone, and I can't find any wires that look like they go to the key. total I counted 5 wires that have been cut. I guess that's what u get when the machine is free, hahaha

Sent from my iPod

RJ Gleason 02-13-2012 08:06 AM

Look down by the recoil and you will see two wire sets coming out of the housing.
One will have three wires and the other will have four.
Unplug the 4 wire and jumper the brown to black and retest for spark.

98yota 02-13-2012 09:30 AM

28 Attachment(s)
That will be a nice sled after you get her going! Can't beat the price!

Snowweasel 02-13-2012 03:54 PM

I did what you said RJ and I did get a spark. It was a very dull orange spark, but still spark. This weekend I'll go buy some new plugs, clean up the old conectors, apply some dielectric grease and should be fine. I don't know what the inside of the carb looks like, but I can bet it's not pretty.

Sent from my iPod

RJ Gleason 02-14-2012 07:26 AM

New plugs may help with stronger spark, but you may want to check that the wire end caps fit tightly onto the plugs themselves.

JD8345RT 02-18-2012 04:03 AM

Free sleds are always fun.....any pics?

Check the CDI also.

Snowweasel 02-18-2012 07:24 PM

I'll have pics tomorrow. Ide like to bet the cdi is fine, the wire I had that was connecting the black and brown from the mag plate were very loosely tied together. I'll do a better Job of fusing them and check the spark again.

Snowweasel 02-19-2012 04:14 PM

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there it is
truly a piece of junk...but its my junk :)
the dude that had it before me wanted it gone so badly he drove 30 mins to drop it off in my yard
this guy had no idea what he was doing with it= he tied a rope with a handle to the recoil cup to try and pull start it :O
if that thing fired up it would whip around like an SOB

ridegreen 02-20-2012 11:51 PM

What I would do is get down to the internal coil and try to clean it up with some fine grit sand paper shoud there be some rust build up on it from moisture. May help with the spark as well.

Snowweasel 02-21-2012 07:17 PM

Got my recoil today from eBay. Was able to find some bolts to fit it, and got it rigged up. The rope came a bit short so I have the handle facing forward on the sled. (since the hood is gone, and the cord loops are all mangled) I was able to fuse that brown and black wire together pretty well, but my spark is still orange. Put some new BR9ES plugs in and still same deal. Other then that, I got some fresh feul in the tank premixed 32/1 with brp synthetic. and the feul lines from the tank were crumbling in my hand so I went and replaced all lines outside of the tank with reinforced 1/4 line and I also got the impulse line while I was at it. Gave the recoil a few pulls and nothin happened. Shot some starter fluid into the back of the carb and it started and idled perfect, but only for a few seconds. I repeated about 5 times to try and get some gas into the lines but did me no good. Finally unplugged the line going from the pump to the carb and it was dry as a bone. I have a rebuild kit on order and hopefully that will solve things. Once I get it going I have no intention of keeping it since I already have 4 sleds. If any one is interested pm me

bakon 02-21-2012 07:21 PM


Originally Posted by Snowweasel (Post 503038)
there it is
truly a piece of junk...but its my junk :)

I wouldn't call it a piece of junk, I have a 79 arctic cat jag 2000. Awesome sled, bullet proof motor and very fun to ride.

bakon 02-21-2012 07:24 PM

If you were near me I would take it in a heartbeat

Snowweasel 02-21-2012 07:25 PM

It seemed junky, but I tell ya. After years of no operation and a little starter fluid does that? I was very surprised

bakon 02-21-2012 07:29 PM

I bought mine this past fall, had been sitting 5 years. Replaced all the fuel lines, cleaned the carb and 3rd pull it started. Been running ever since...had an issue with dirty carb recently from sitting because of no SNOW. Now we have snow, I cleaned it up and last night it ran like a champ.

Snowweasel 02-21-2012 07:33 PM

You just can't beat vintage Suzuki motors

bakon 02-21-2012 08:00 PM

I agree

bakon 02-21-2012 08:49 PM

I would be interested in the dash if your parting it out and if it's near mint with no cracks. No speedo or anything just the dash and panels. I also need the snowflap. Let me know!!

Snowweasel 02-21-2012 10:08 PM

My dash in pretty cracked up, but I don't know about the flap. I'll give it a look tomorrow and mssg you back

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