I have a Husqvarna 350 saw I just replaced the ring in,the cylinder was a little scored but after changing the ring it ran like a new saw for about a week then it just stoped like it was out of fuel,,i think the boot to the carb and cylinder is cracked would this cause it not to hit at all...and if so where can I get one and what is it called,,and is there any other trouble items with these saws,,thanks for any help guys I appreciate any help and info....:msp_thumbup: