I have got a Poulan Feather lite converted

It is a very very smooth engine in my test it run a regular grey propeller 15/8 Graupner 6000 rpm
It as a very very small hole carb ( venturi)

It is a light engine , but powerless i belive , it need some modifications to run with some increased RPM´s

I believe Ryobi/Mtd 31cc it is more powerfull , and swing a 18/6 18/8 with facility smoth
Run by magnet not modified for CDI

If modified for CDI it will run different

Do you wish i send you detailed pictures?

Best Regards

Nuno Monteiro From Portugal