Mcculloch Model 1967 McCulloch Chain Saw?

1967 McCulloch chain saw? - mcculloch model

In a previous post, I have the brand wrong. (Sorry)! I have a yellow color with black McCulloch chainsaw. (NO McCullough) (Model: MAC 10-10.) I was wondering if anyone can tell me the correct answer, that the diesel-fuel mixture to be? The sweet thing to work, and starts the second clip. The bar is big, I think it has less than 5 hours on it. I am a ASE cert technician and worked on small engines since I was 10, but not in my realm. I can not dig what this bad boy. Any help would be great! Thank you!