2008 Suzuki Other

Engine Performance problem
2008 Other Suzuki Models Manual 8000 miles

Its a 800cc with 3 cylinders car, when idle it should make 901 RPM but what happens is that the RPM is not constant when idle.
Sometimes it reaches to 970 and then goes to 850 and then to 900 and so on.
Is this normal?
September 7, 2008.

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