donzi jet boat

[MitchMan32]

i have a donzi jet boat with a 120 sportjet on it. i am having trouble getting it to start. I read some of the forums and it said to unhook the black/yellow kill wires to see if it is a kill switch problem. so i tried that and still had no spark. so i tried switching the stator wires around. i switched the red,red wires to red,red/black and got spark in the top 2 cyl but nothing on the bottom 2. so i tried it with the blue,blue switched to blue,blue/white but still no spark on the bottom 2 cyl it is the original black stator with red,red/black,blue,blue/white wires. coming out of it. what is the proper way to check ignition coils,stator,rectifier. things of that nature? i have a ac dc volt meter i can check ohms and ma. but i need to know what wires to check and the proper procedures. thanks.