88 Yamaha 350 Warrior
 

I have a 1988 Yamaha 350 Warrior I was riding it run just fine came home one day parked it went out two days later to ride and it wouldn't run no more no spark so I put a new coil in it thinking that might be it it didn't happen still no spark so I bought a new stator put the new stator in and still no spark I've checked all the wiring I don't know where to turn can anybody help thank you

Spark plug?