This saw had become very hard to start over the last several years. When it sat for several days and was cold you would have to pull 15 to 20 times to get it to go. Once running it was fine for the rest of the day. I decided to put a kit in the carb and got a new air filter for it. Ran the carb through the new Sonic Cleaner and installed the new diaphragm and gaskets. The old diaphragm looked OK but was a little stiffer feeling than the new one. The air filter on these also have the choke built into them. The old one didn't seem to seal very good anymore. The new one wasn't much better but I could see some plastic burrs holding it open. Shaved those down and got a much better seal. Installed the carb and filter and gave it a try. Since the carb had no fuel it took about 10 pulls to get it to fire. Did some tuning on the carb and shut it down. This morning I tried it again and it fired on the 3rd pull. Better than its been it years. Time to go cuttin'.