Its not a issue for me, mine sets for weeks and this past winter set for four months with out being run. It fired right up, runs great and I know the fuel is from last October when I filled.
I have only one short section of rubber line which I check when under the hood. Valves are no worry either, a hard working engine is one pulling a load of rock, with the throttle wide open for the entire trip, thats not mine....
I read some where that the old engines have enough lead pounded into the seats to last a life time.
Joe
