I just acquired a Poulan 2025 for free. The previous owner claimed he "had problems starting it and just wanted to get rid of it". Based on the EPA sticker, it is a 1999 and hasn't seen the best maintenance. I cleaned it, installed a fresh spark plug, poured in some fresh fuel mix and it started just fine. I think the starting issues were from the nasty plug, dirty carb and air filter as none looked like they had been changed/cleaned in a while. I've done some reading and this does not seem to be a very well thought of "homeowner" saw around here. But I didn't have a saw and anything I would do would be in the homeowner realm of capabilities. I figured a saw is better than no saw, and I'm not going to go out and buy a saw at this point. Before I put any money into it (which won't be much), I have a couple questions: 1. When is a bar considered worn enough to take out of service? The 16" bar on it has a decent burr all the way around and there are areas that it is blued from it heating up. 2. The chains also look blued, leading me to believe they are dull and were abused. I'm inclined to just get something new (Oregon bar/chain combo 27857), or should I try to sharpen/have them sharpened? 3. Did these saws come with the option of bumper spikes? There are mounting holes on the front of the housing to suggest something like that could be mounted there. 4. I downloaded the 2025/2050 owners manual from the Poulan site. Is there a site where I can find a parts list/schematic? Thanks for any input!