So I am hoping someone can help me here - I recently got a used Remington Outlaw RM4620 20" saw and basically the problem is it will not stay running. It starts easily but then cuts out after a few seconds. If I give it gas, it will run a little longer but eventually it cuts out maybe after 20 or so seconds even with full throttle. So far I have: Replaced the fuel filter and fuel line that runs from it into the carb, drained the fuel tank and replaced it with fresh gas, replaced the air filter, cleaned out the spark arrester, and cleaned out the bar oil channel (so that is working fine at least). Still it is happening. I even can remove the air filter and it happens. Choke and intake seem to work and look clean. Spark plug looks OK. It sounds to me like a fuel delivery problem. Any ideas? Do I have to take the carb out, clean or rebuild it? Could it be the mixture or idle speed? When it start, it appears to idle briefly at a reasonable rate. It was not expensive and I would rather not put much money in it. Thanks