Fuel Pitcocks

[iamgybo]

I have a 79 XS1100 and turned the pitcocks off. The bike now runs rough and spits and sputters. It doesn't matter if they are set to on, res. or pri. any ideas??

[Parr8hed]

we need some more info on this one. Do you have a special or a standard. The quick easy way is round headlight or rectangular.

[iamgybo]

Its a special, it has the round headlight. When I first bought the bike it ran fine, except at high RPM it would cut out.
Then I put the pitcocks in Res. and it ran for a while the would not.
If you move the pitcocks to different settings it will run for a while,then starts cutting out again.

[DiverRay]

There are threads on the special "fuel line routing" problems. You can do a search, and probably find the answer to your problem.
I would say start with a rebuild of the petcocks, and then rebuild the vacum valve located on the #2 carb. I would also put filters, the clear type, on the fuel lines. They will give you a clue if you still have problems, and you see stuff floating in the filters.
Ray

[LoserShoes]

Could also be that the filter screens above the float needles are clogged. Requires carb removal and disassembly to check. Do the easy to check stuff first.

Steve