I have an 8461 commercial that i picked up from the garbage about 7 or 8 years ago. Cleaned it up and got it running (just disassembled and cleaned carb and new fuel line) but now it refuses to start. Has been bullet proof until now. I have changed the gas (have not run it this year) put in a new spark plug (e3), checked for spark which looks good, completely disassembled carb took out everything and cleaned thoroughly. Compression is up to 120 with a full pull. Still nothing I fear a leak in the case some where. Is it worth tearing down further or am I missing something simple. Even if i pour a little gas in the carb it will not run. There are some pinholes in the muffler. Seems a waste to junk it but it may be more trouble than it is worth. Although I have not seen anything close to it being produced today.