Unseizing A Motorcycle Engine - Barn Find CB750 EP3

Unseizing A Motorcycle Engine - Barn Find CB750 revival! The $100 barn find CB750 takes a big leap forward in this video as I work to unseize the engine which had sat for years without spark plugs exposed to the elements. It appears that cylinder 1 and 4 had a bit of rust holding the piston rings to the cylinder walls causing the engine to be stuck.

After soaking with Marvels Mystery Oil for a while I tried working the engine loose and was successful after a few "polite" taps with a hammer on a long prybar. Look for more on this project in the future!

Bore Scope Camera used (Amazon affiliate link where I get a small commission if you make a purchase):
https://amzn.to/3m9nXX1

UPDATE 2/28/22: See the bike running!
   • CB750 FIRST START IN 45 YEARS!! Bit S...  

UPDATE 6/6/22: Full health check up. How about those compression figures!
   • Barn Find CB750 Health Check and Tune...  

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