.015. Easily wat to set is turn rotor so magnets are by coil, insert business card between coil and rotor, loosen bolts holding coil (magnets pulling coil to rotor) tighten coil bolts and remove business card.
Hey badspanner, Welcome to the House of Homelite. There are lots of answers to lots of questions here and lots of people willing to help. I moved your question so more folks would be likely to see it when they were having similar issues. Thanks for asking it.
XL-500 (One owner, me), Another XL-500 XL-15, Big Red, John Deere 350CS(Yellow SXLAO) Old Blue (SXLAO) XL-BC4 Brush Cutter, Little Red, XL2, XLA115/1/400-1P (115VAC, Single Phase, 400Hz, 125Watts) XL-98 Multi Purpose Saw 1969 T50 Chev Fire Truck 1962 K10 Chev Pickup 400SBC TH400 1981 C10 Chev Pickup 250-6 4spd