Guys,
Going crazy over this one...My 280 will start, run for a few miles & then just shut down while on the fly. It won't start back right away...sits for about 2hours will fire back up. Might drive another few miles....shuts off again. Stranded twice...what's up???? I don't think its fuel pump...I think I hear it cycle. Help.
Teddy Z

 

It might be a dirty fuel filter, or possibly a rusty/dirty fuel tank (which will cause the first condition). I had a 510 that would do the same thing, and it turned out to be the fuel tank. I would replace the filter first and see what happens.

"Better scared to death than bored to death."