Hi,
My Stihl 038M is working fine when horizontal but if I start to turn vertical while boring into a log it starts to stall and wont recover until it is horizontal again and the trigger feathered to keep it running.
My initial thought is fuel starvation, so a new filter was installed and retested with a full tank of fresh fuel but the problem remains. I replaced the carby and ignition pickup with a new one's last year and have done about 20 hrs use since before this problem started.
What have I missed?
regards
