HUSQVARNA 41 CHAINSAW CANT GET TO START

Question

I RECENTLY CHANGED THE OILER AND IT WAS RUNNING FINE I HAD TO PUT THE CLUTCH BACK TOGETHER BCUZ IT CAME APART WHEN I TOOK IT OFF AND I ALSO PUT A NEW COIL ON IT TO THE GAP IS WHAT IT SHOULD BE ABOUT A BUSINESS CARD BUT ITS JUST NOT STARTING. HELP!!!!!!