Hello!
You can´t !
By new ballbearings!!!!

Regards!
Jan K
Sweden

Gummed Up Bearings
 

I had good luck using a spray cleaner that is used to clean solder flux from electronic equipment. Don't remember the name. It isn't cheap but worked fine for me.

RSN

Scrap it ??
 

When you say you're gonna scrap it - I hope you mean clean it up, oil it liberally, wrap in cloth & then keep forever.

I have this horrible vision of the dear old engine clanging on the botton of the garbage bin.

Please keep it for your engine collection !!!!


PS: But, if you intend to bin it, send it to me here in Australia - I will gladly pay the postage - please email me if interested.