I have a McCullogh weed whacker that's about 9 years old. It's been
running fine until the end of last season. Since then, it developed a
problem where it quits when hot. It also wouldn't run with choke in
"warm" position - it seems to, well, choke whenever I push on gas
lever. It does run with choke in "cold" position - until it dies.
I suspected that I had a bad fuel mix, so I replaced it with clean,
well-measured fuel / oil mix. Also, the governor screw had a notch on
the end from many years of work, so I turned it by 1/2 turn.
Nevertheless, it still quits. Any ideas ?