View Full Version : For you '70s 4cyl Guys, can I take my vacuum petcocks and convert to 1 manual

02-08-2010, 9:33 AM
Im looking to run one petcock instead of 2, have any of you guys expirienced running 1 petcock on a 4 cylinder? Any starvation issues? My bike is a 79 XS1100. Thanks

02-08-2010, 2:59 PM
Shouldn't have any issues... Pingle actually makes manual replacements for those things... just don't forget to plug your vacuum source on your carb boot.

I welded in a bung and installed an old Harley petcock that I found in the trash on my KZ1000. Been running it that way for about three years.


02-08-2010, 4:48 PM
Thanks man, Im putting an HD Kmodel tank on my XS11 just making sure I wouldnt starve her for fuel. Ill update when its done.