John Deere Z930A running only on 1 Cyl

[Jeweler]

I have a Z930A and been a great mower has 490 hours and now is running only on 1 cylinder replace the simple spark plugs and it didn't fix. Any recommendations would greatly be appreciated. Thanks

 

[Scrubcadet10]

More than likely your ignition coil, which produces spark. Just follow the spark plug wire and you'll find it. And clean out any debris ( if any)

 

[Jeweler]

Thank you I will check it out and see if there is anything around it.