Going to be a heavy saw for cutting firewood if it is anything like the JD type 17. This saw is all metal no plastic. Reminton made saws for JD. The SL and PL-4 are the same saws, just different numbers, engines are the same idenitical bore and stroke, from the research I have done on them.
I have a Remington like yours that is suppose to run, never have tried to get it to fire up. I am going to part it out for the engine for the JD. An old timer I knew said the Remingtons were good saws, but I don't have hands on experience running one.
This is strange, there was a Remington SL-4 on e-bay recently, you snag it by chance. I was watching it but went for too much money for my pocketbook for a saw that would only run on a prime down the throat of the carb.
Larry