coil and condensor

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carsronnie

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im working on a poulan xx saw that has no spark.is there a way to check the coil and condensor so i dont waste money on parts i dont need?
 
module

A few suppliers sell the small replacement electronic modules that replace the points and condensor, but you still need a good coil.
Check the points with an ohmmeter, and see if your local shop has a coil tester.
 
Wait, I thought the Poulan xx and other saws built on the same design had electronic ignition systems without the points setup in them.

The one I'm working on has an electronic ignition coil.
 
im not sure what year this saw is,but it has the condensor and coil on the left side and the points are on the right side under a black plastic cap.there must be a way to check the electric components with a meter.i just need to know where to hook up the leads and what value they should read;as to if it should be full continuity or a certain amount of resistance.the new module sounds like a great idea,but it does me no good if the coil is bad.just to clear things up,the coil is located on the armeture,right?
 
Poulan xx

Hello;If you look at Mike's site, under Poulan xx,this is my saw.I bought this little saw for $2.00 at an auction.The problem,was a bad condensor[capacitor].About any little condensor,that will fit in the small space will work.A method for testing the coil would be a simple resistance test of the primary and secondary circuits.The primary[low voltage],would be from the points,to ground.The secondary[high voltage],is from the plug to ground.These are neat little saws,for no more size than they are.Mine has a "pain in the rear',fixed jet high speed jet,of which,I will change,if I can find a replacement.Al
 
thanks,al.does anybody know what resistance if any there should be between these 2 checking points.or should there be total continuity?i hate to junk this little saw!
 
Resistance checks:

Originally posted by carsronnie
thanks,al.does anybody know what resistance if any there should be between these 2 checking points.or should there be total continuity?i hate to junk this little saw!

Usually when I check a coil the primary side, the wire from the points through the coil to ground will read around 400 to 500 Ohms. If there is no reading its open and no good. You should also check between the pont wire and the laminations with out the ground wire attached. If there is any reading the coil is shorted internally and is no good. On the high side ( sparkplug wire to ground) the readings will read higher, but shouldn't be infinate. If its infinate, the coil is open and no good. If it reads way low it's probably shorted internally. Again, there should be no reading between the spark plug wire and laminations with the ground wire disconnected from the laminations or ground terminal.

On the high side, with the ohmmeter connected to the sparkplug wire and ground, if it reads infinate try moving the spark plug wire around a bit, with the ohmmeter connected, to see if you
get a reading. If you can get a reading, you will have to replace or repair the sparkplug wire. Give these suggestions a try and see what you come up with. If you want to ask any more questions drop me a PM or Email. Good luck. Lewis.
 
xx

well i put in the atom module exactly like it said.i only get a spark once in a great while.i tried reversing the wires like the instructions said to no avail.the coil must be bad.does anyone have a coil they want to sell,or know where i can get one at a reasonable price?
 
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