out of ideas SEG KC ANYONE AHHHHHHH - Snowmobile Forum: Your #1 Snowmobile Forum

coloradoman25 · 12-25-2007, 05:18 PM

I have this 85 500cc motor stuffed in my panther. I have 22x.00 volts throgh the cdi to the coil on every pull// I have 3 coils that all seem to work intermittently run then wont lkeave em a few hrs/days and wham they work for a bit. I am loosing more hair over this than I care to admit...I have cut and reattached the plug heads They are separated so the wires dont touch I have trie 111500000 combinations and nothing works.

Is there a ground for the coil somewhere? What else can this be? I have all on offs/kills bypassed.

I need one more idea because mine now involves matches and gasoline.

It will go to a shop this week if i cant get it figured out any help is appreciated

kccats · 12-25-2007, 06:32 PM

Hey have you seen these small size sticks of dynamite! Sorry Dude I know where you're coming from! I've had amoth of everything I touch turning to $hit!
Ok yes the black wire that plugs into the coil is a ground, trace it back, there will be a splice where it hooks into the harness! Trace it back farther there will be more splices, it may even go all the way back to under the flywheel? some have a seperate gromet at the 3 way by the CDI box! Have you used all the components from the motor? Then try all from the sled! (which would include the stator and flywheel!) If you stay with one or the other it should work! Personally I would try to stay with the motor for the cdi curve! Good luck keep us posted and easy on the hair once you get to my age it don't come back!!!

coloradoman25 · 12-25-2007, 06:48 PM

I see only one connection from the stator to the CDI its the singular wire that connects the 2 I. But I have to ask if I have a positive and negative in strength from the CDI...AKA the plug that runs to the coil I am at a loss. I have power through the cdi with ground at all times when I throw the fluke on it 22x. volts which leads me to believe maybe im just so lucky that I have had 3 bad coils..

How do I test if power is running through the coil itself. I obviously have no spark but I have power through the plug from the CDI that goes to the coil...Am I slow and missing something?? Is there another factor other than that plug from the CDI and the power that goes to it other than the coil itself being bad?

coloradoman25 · 12-25-2007, 06:56 PM

Also does anyone have the part numbers for a coil for an 85 and 86 500cc fan motor??

coloradoman25 · 12-25-2007, 08:26 PM

I am getting .2 ish resistance drom the coil at the plug and then 1.3 at the wires I am assuming all my coils are junk.

Seems all other readings are on the ball.

Coil 4 anyone?

JDS · 12-25-2007, 09:26 PM

Coloradoman: I was having problems with my ZR firing. Even though the parts #'s didn't match, the coil off my '91 EXT worked. I used it till I could get the right one last winter. Try one off of one of your Powder Specials.

coloradoman25 · 12-25-2007, 10:17 PM

I can get the one from the 440 to fire intermittently its just a weak spark so I want to get one thats right for it and not risk frying one from my other sleds. I apprecaite the suggestion but I have 2 working powder specials and I want to keep it that way lol

**smallengineguy** · 12-26-2007, 07:01 AM

Replace one coil and see if it works. If not, replace the stator.

coloradoman25 · 12-26-2007, 02:05 PM

I am in search of the coil. Just out of curiosity why the stator? I have bvoltage leaving it and according to the specs I found using the seatrch on this site I am right on for OHM resistance with it.

I believe anything you say as you are very knowledgable just was trying to understand why stator and not maybe the CDI?

kccats · 12-26-2007, 09:21 PM

Which set are we trying for at the moment? And try to keep the 2 systems together!
Try taking one of your coils and put it on the 700 and see if it runs!

coloradoman25 · 12-26-2007, 10:17 PM

So are you saying the coil is interchangable between any sleds they should all run at any time? im confused. Can this have any detrimental effect on my 700? I dont want to risk anything on a newer working sled. Sorry for my ignorance

coloradoman25 · 12-26-2007, 10:18 PM

Coil number is 3003-221 Or originally 3003-017

JDS · 12-27-2007, 11:12 AM

All a coil does is transform the voltage coming into it into higher voltage which goes to the spark plugs. When they go bad, they get a short in either the high voltage windings or low voltage windings which will either eliminate spark entirely or minimize spark because of low voltage.

coloradoman25 · 12-27-2007, 04:27 PM

So JD If I have 220 + or - a few volts to the coil through the CDI is that sufficient? I checked the Ohm Resistance in the stator and all was on spec. The only things out of wack were all the coils that I have.

None had the 6500 resistance they were supposed to at the leads. One had 0 one has 1300 and one had a bit more. I would assume this is my reigning problem. The one that had a bit more intermittently works. I think its resistance was around 4k. On the plug side one was 0 one was .1 and one was .2 the one that had the highest resistance is meant for a 440 94 panther the sleds original motor. This one will work on occasion but only for short periods of time.

JDS · 12-27-2007, 07:49 PM

colorado: Check the numbers on one of your running sleds. Then check those against the one you're working on. They should be in the ballpark. This article may help, so may just confuse you more.
Dan's Motorcycle "Electronic Ignition"