So I just recently overheated my saw while milling, and though it can be repaired (and it goes into the shop tomorrow first thing), I would like to make sure it doesn't happen again. Clearly I need to be more careful about letting the saw idle to cool down after a few minutes of hard cutting, and take off the damn carb limiters so I can set it to a slightly richer mix than I've been using. But one thing I still don't get is the justification for using 40:1 or 32:1 gas/oil. My understanding is that older saws did need this ratio, but modern saws don't. Indeed, it just adds more smoke into your environment and fouls up the carbs with excess carbon, and so on.
Is there any evidence that milling in particular requires more oil than 50:1? In particular, is there any reason to think that it will keep the saw cooler?
Is there any evidence that milling in particular requires more oil than 50:1? In particular, is there any reason to think that it will keep the saw cooler?