Hello real Aeromodelers: .

Long time I havent been arround here, but as certainly must of you know, once converted an engine your hooked for life.

I have Identified clearly that the following engine I have, is a Homelite, but I dont know if its a 33cc or a 45cc.

Is there any practical way to know the size of this homelite.

As always, thanks everyone for your help

ODDY