Cant get a spark from yamaha kodiak 400,battery good but no spark when cranking over the engine, had coil tested and ok, any ideas what the prob could be

I did one about a year ago & it was the pulser coil(black plastic pickup next to magneto behind L/H engine cover) but

1. I'm not suggesting that this is definatly the fault
2. But id check it first
3. I havent got the spec for it but got it from my Yamaha dealer easy enough(you'll need the wire colours as well)
4. contact me back if you can't get them and i'll see what I can do(it'll be another week before I can get it as my phone is shot! blew the line clean out of the wall in a storm a couple of weeks ago)