Vintage Farm Equipment And John Deere Tractors

John deere lawnmower backfiring?

Fatback_pimp12 asked:

we just got a brand new automatic 24hp john deere mower, and its been used, about 3 hours, and its starting to backfire when we turn the throttle down or turn it off.. why is this? do we need a new spark plug?

Antique John Deere Tractors

where is the spark plug or plugs on a John Deere SRX75 lawn tractor?

JP asked:

I am trying to fix this John Deere lawn tractor- I think the spark plugs need to be replaced since I am having trouble getting it to turn over and start.

John Deere History