I have been reworking a small 1997 15hp. 2 stroke yamaha. I have replaced almost everything... lol This project is getting out of control!!! Well rebuilt the carb, rebuilt the fuel pump ,cleared all the water passages and a bunch of other stuff... So I have been trying to get it started for 2 days now and I don't think it is getting spark. I closed up the garage so it is pitch black with the spark plugs out and tryed starting it to see if it is getting spark, well no spark!! Is that a good way to test the spark?? I don't know, but I thought it might be... Maybe needs coils??? Please help!