I have a 1985 90hp yamaha, lately when I first start it and don't give it a long run when I stut it down it is very difficult to start again, well today it would not start at all after the first time, when I got home I found there is no spark to any cyl., fuses are good , according to the manual one set of leads from the pulsar coil does not have the proper resistance, would this cause the no spark condition???