Hello,
I have a Sthil FS120 strimmer/brushcutter. When started it runs okay for a bit, but after a while it stops picking up when the throttle trigger is squ eezed. If stopped and restarted it will run at full revs again. The trouble is when it gets warm it can only be a couple of minutes before it fails to pick up, which slows the job down and lots of restarting probably does not do it much good. Does anyone know what is wrong with it?