I've got a Husky 350 chainsaw that's about ten years old. It runs great, no issues there. I bought a new bar and chain and it cut like new. I was cutting oak and it worked great. I cut an unknown stump for a neighbor and near the end of the cut it acted like it wasn't getting oil. I returned to the oak I was working on and it cut slower. Now the chain is slipping (like a clutch in a car type of slipping). It's running fine and cuts okay until the least little bit of pressure is applied and then the chain starts slipping until it stops turning all together. Motor is wide open and chain is stuck in the wood. I can adjust the chain like normal and it doesn't make a difference with the symptoms. The chain tensioner is working great and the tension is correct. Clutch?