Does a petcock have spring inside?

[John]

Originally posted by tokarz33
81 xs1100 H Model

standard right?

Standard, Si!

[tokarz33]

ok, so I am missing one spring then.

Anyone have an extra spring?

Why doesn't this show up in the diagram?

[pggg]

Tokarz, the springs in my fuel taps got tired and weak and the diaphragms wouldn't close properly - so the fuel flowed through even when the taps were at 'ON' position. I stretched the springs, but within a week or so, they'd crapped out again. I ditched them and cut some ballpoint pen springs to size and tried them. Never had any problem since.

[tokarz33]

Sounds easy. I will give that a shot.


thanks guys.

[Ken Talbot]

While you're in there, be sure to clean out the 'spooge' hole in the housing on the vacuum side of the diaphragm. If this hole is plugged, even a good spring will not push the o-ring into the seat hard enough or quick enough to stop the fuel flow.

With the petcock taken apart, you can tell if this hole is plugged by sucking on the vacuum nipple, as the engine vacuum would do, then blowing on it. If it is plugged, you won't be able to blow back through the nipple.