Best thing to do when cutting 24 miles away is to always bring a backup saw. The 575 was a backup? Anyway, the kink I ran into was near the end of the line, which was about an inch away from the fuel filter. That last time that I had the saw worked on back then, the mechanic replaced the fuel line and cut the hose too long. In that case, the fuel filter was OK but the kink choked out the carb's efforts. This saw would always start cold fine and then start shutting down as it warmed up because the kink reforms. If I let it sit for awhile it would start and run for awhile before conking out again.Did you determine where the fuel hose was getting kinked? I took my 272 cutting yesterday and shuts off in the cut. I have to choke it to start it again. So, either the hose is getting kinked, bad fuel filter, or junk in the screen of the carb. I'd like to find the problem so I'm sure it's ready the next time I cut 24 miles from home. Thanks to the 575 which was a beast yesterday.
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This same (or similar) thing can happen with a bad fuel filter that is clogging up as the saw runs. A clogged filter will starve out the carb that is trying to pump fuel but cannot get it past the fuel filter, so the engine sputters out. Let it sit for awhile, and the filter lets in just enough fuel to restart the saw, but it will shut down again.