Testing the Coil

[uptothree]

Got two 3 wheelers. One a 85; 250es the other around 83 (not sure the year) 200es. Neither of them are getting any fire. The manual says to test across the two terminal going into the coil to measure the resistance. I checked and both read 0.0. No resistance. The 200 came with two other coils which Ive never used. Tested them and got 0.0. Ordered one off Ebay for the 250. Came from a cycle shop. High tension wire doesn't look to good. Tested its terminal and it reads 0.0. I also have a 400 Kawasaki 4 wheeler that ran when parked (water cooled with a cracked head or sleeve. So it hasn't been used in awhile) I tested its coil. Got 0.0. Im pretty sure that coil is good. I then tested a round can coil on my old tractor just for fun. It did show some resistance.

So where do I go from here? I need to find out if that coil from Ebay is bad so I can send it back. The high tension wire on it is just about enough to make me want to send it back any way. Any help on how to test these coils would be appreciated. Then I could move onto the other parts of the firing system.

[uptothree]

I see a post below where the guy with a firing problem was referred to a 3 wheeler site. I went there and tried for two hours to try to figure out how to post. Never did. My question though is pretty genetic. I could had been asking the same question about a 4 wheeler. Coils are basically the same. If anyone can help, Id appreciate it.