Just saw on your pics that you have an Autostart version, and one of the latest type (with black covered electric starter motor).

Attached also a photo of the Jet 1A retracts from Digitech, which are available but not on his website.

Make yourself a FOD screen, you wouldn't believe how much dirt these little ones ingest ! (And according to my own subjective observations, such didn't affect the motors' performance)
Also, for the motors mounted in the airflow, I made myself a front engine cowling with the bottleneck of used 500 ml water bottles. Should definitely improve the aerodynamics...

Nicolas.