Back in 1976 I bought one that a "friend" I loaned it to straight gassed and the cost to rebuild it was higher than what I paid for it. I liked that saw and if nothing else, I learned not to loan a saw to an inexperienced operator. I bought a used Poulan 4000 a while back and it runs fine today:
No chain brake but a lot of grunt.
No chain brake but a lot of grunt.