I have a tg1860g gas mower that ran fine in the fall and now will not start. I checked continuity of the seat switch and the neutral switch and both are good. I do not have spark at either plug. Is there a magnetic pickup on the Kawasaki engine or am I missing something. What would cause both coils to not fire? Engine cranks really well. I did not check pto switch, but engine will not crank when the pto is engaged. Any help or trouble shooting tips would be appreciated. Thanks