While you wait for answers, we may have found some information which could help you.
Click here for Lawn Mower Blades Wiring
john deere js30 won't start?
What would cause belt to flip on a pully ?
John Deere L130 clutch problem?
John Deer LA105?
was mowing with john deere lx172 just quit running , dead?
Mower won't stay running?