In essence, this thread is a self-examination of what you think about the vac petcock, in retrospect knowing what you know now.It has been what, three (3) years now since Serowbot posted the "How to test your Petcock" which started off the 3 years of "Petcock Wars" of which there have been about 6 or 8 in total, each jumping up to discuss a pertinent new bit of vac petcock knowledge as it became available.
Serowbot and I were about alone then, with everyone telling us we'd fill our sumps up with gasoline by using them primitive mechanical petcocks.
That really was what folks thought back then .....
"Raptor putting gas into the sump" has (so far) never happened, although I will always keep looking for the very first one because logically it should happen, eventually.
Vac Petcock failure modes started out as two (2) but is now up to five (5) as people have discussed poor running and stalling issues down to the point they have shown us three new ways for a vacksucker to show it's arse in normal use.
We have seen multiple gas in sump episodes from the vac petcock and many many failures and stalled bikes and upset people. ColoS40Girl just broke some new ground when a Suzuki dealership replaced her vacsucker with a Raptor under warranty
as a warranty repair.
And the percentage of believers went from 33% at the end of the first year to 55% the second year to (on this last poll) the percent of believers is currently right at 85% (33 out of 39 responding)
And our response to newbie help requests has picked up Serowbot's test as the Number 1 thing a newbie needs to immediately do to separate out his vacsucker issues from his other remaining issues.
And, right now the vacsucker is running at 4 to one as the root cause of most newbie reported "poor running" issues.
So, what you believe is still changing year on year.
I wonder what next year will be like?
Pages: 
