Husqvarna T435 - having two problems right now:
1. chain keeps loosening, like, really fast. I checked the parts manual - everything is there. cranking down hard on the nut - yes. chain is not new, but sharp. bar just seems to be moving in. how can i fix this?
2. getting lots of blue smoke after operating for a few minutes, like there is oil leaking onto something hot inside. I don't think this is oil leakage in the pistons, b/c power seems to be ok. on the other hand, i think the smoke may be coming out of the muffler hole. how do i diagnose this?