.21 Nitro Engine Orings
Is there a source to just buy the right type of Orings for all areas of the carb to crankcase, back cover, needle adjustment areas?
Instead of the actual part numbers for the engine manufacturer. I am sure there is a way to buy a few more quantities for better price and that there is commonality between many engines?
Perhaps they are specified by diameter and thickness?
I have a Rex PR21P5/NX.