I have a stihl ms290 chainsaw that I have had since november of 2006. It has been a good saw, has done everything I wanted it to do. I am now having problems with it though. I went to start it up after having the chains sharpened today and started up fine but idling was TERRIBLE. I cleaned the air filter and spark plug before I started it up. SO I restarted it a few times and still idling poorly. I got the instruction book and did what they said to do to ajust the idling (H, L, LA). Needless to say it did not fix the problem. If you can get it started up you can give it gas but dies right after you give it gas. doesnt hold an idle. and high idle screw is stripped. notes so far: cleaned spark plug and air filter will not hold idle if you can get it running can give it gas but dies right after started acting up a few weeks ago but still ran ok high idle screw is stripped also the gas and fuel caps have a string inside the saw holding them to the saw, this string is broken on both Also I have a stihl ms180c miniboss that has a small crack on gas tank so will drip gas sometimes, but very little, also a little hesitant to get running sometimes, cleaned air filter and spark plug basically I have ran these saws hard off and on for 2 years cleaning a lot of brush and trees from around the house. I have 2 professional stihl blowers, edger and weedwhacker. have given me absolutely NO TROUBLE. SO I am wondering if it would be worth fixing everything on the saws (not sure how much it would cost) or get a new stihl professional chainsaw that I know will last for what I am doing in the yard. Please let me know what you all think. this is a very hard decision.