Chainsaw Repair

I recently had an 026 pro with the same symptoms. Had sat a long time and owner wanted it running. I started playing with it and raced at any setting of the needle and no idle. I told him most likely crank seals but he insisted that I kit the carb. Same thing so he got mad,told me I had no idea what I was doing,didn't pay me a thing and off to a local shop. 2 weeks and $70 for a shop diagnosis later he stopped by and paid my $30 stating that it was crank seals, leaving a husky 346 that did need a kit. That one cost him $40. You have a vac leak somewhere so you might want to eliminate that.