Rispondi a "Motor does not turn over all the way."Hello. I just purchased a Husqvarna rz4621 when I turn the key to start it barely turns. Battery is good. Out jumped cables on it didn't help. Took spark plug out. Have plenty of spark. Turn key while plug is out and motor cranks over fine. Put spark plug back in and motor doesn't wanna turn again. Not sure what I'm missing?