Ryobi RIG2000PC Manuel D'utilisation page 48

English (Original instructions)
The following symptoms may indicate problems that will affect the emissions level of the product:
Hard starting or stalling after starting
Rough idle
Misfiring or backfiring under load
Afterburning (backfiring)
Black exhaust smoke or high fuel consumption
If you encounter any of these symptoms, have the product inspected and repaired by the nearest authorised service centre.
37