Looking for a fellow who repairs/rebuilds YS engines, used to take 120's and 140's and put the best combinations of parts in them from the different versions, these engines really worked well, he is independent of YS but I don't know his name or how to contact him.....can anyone help?

Thanks,

WRK

Don't know of the individual you speak of, but you might contact Central Hobbies. They can surely recommend a repair shop.
Regards,
GPB