a lot of the fear of contaminating the crankcase oil w/ gas comes from the old triumphs and especially the old ewarts push pull petcocks that were on bsas. even shut off, the gas could leak past the cork inserts then could leak down through the head into the crankcase. my beezer can do this.
i always shut my gas off if i'm stopped for more than a few minutes. i never use the on off kill switch. kickstand down is a good idea too.
i spray some cable lube into the petcock lever about once a week, but a new pingle is probably the best bet. going 70 mph and then having to switch to reserve and struggling w/ a sticky petcock is not the best situation.
cat
