Join Date: Jan 2015
Location: A stone's throw from Luckenbach, TX
Year/Make/Model: 1996 Kawasaki Vulcan 800 Classic
Remove tank and set it on bench and support it well
Take the vacuum hose and put it back on the petcock--suck gently on the vacuum hose and gas should flow in both RES and ON positions--they should not leak any when not under a vacuum! It doesn't take much vacuum for the gas to flow (NOTE: prime position will flow freely without any vacuum)
If gas does not flow in either position; do as doitmanny suggests--check the screen; if screen ok then disassemble petcock--it's plugged so clean it
Hopefully you will not need a new petcock--but I've replaced a many of them!
Or go on hour ride in the RES position and just fill up a little more often--no biggie--deal with it when you get back
Let us know what you find so others can learn
1996 Vulcan 800, Blue/Green
JUST SOLD: 2016 Indian Scout, Black
SOLD LAST YEAR: 2006 Triumph Rocket III, Black
SOLD LAST YEAR: 1967 Honda 305 Dream, Black
"Going up the country . . . "