Check Engine Speeds
Warm up engine and use tachometer to check engine speeds. The following guidelines apply:
| Fuel injection pump |
Slow idle |
Fast idle |
| Mechanical pump |
875-925 rpm |
2480-2510 rpm |
| Electronic pump |
840-860 rpm |
2450-2480 rpm |
Have adjustments carried out by your John Deere dealer.
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