vacuum advance hose size?

[tranger03]

hello everybody and happy new year!!

I have read a couple of other posts that mentioned the vacuum hose to 3/16. I took a scrap piece of the hose (which had broken) to the auto parts store and tried to match it ip that way. The inside diameter seemed reasonably close; however, the hose would not fit through the grommet in the backside of the timing case. If you guys could let me know if 3/16 is the right size for the vacuum advance hose and where I could get said hose I would appreciate it. By the way its an '78 xs1100e. One more thing, when hooking up an auxillary tank to do carb synch do I have to put a "T" in the fuel line from the bladder so that I can run fuel line to both sides of the carbs (simulate two petcocks). Or is one line sufficient.

Thanks,

Camron

[81xsproject]

As far as the fuel line goes, you can run it from one source line, but it does need to have a T. The carbs get thier fuel in pairs.

[randy]

Camron,

Ditto what 81sxproject said. Two fuel feeds. Also, you can ream that grommet to fit the 3/16" hose. Wetting it will also help get it through.

PS the microfiche calls that hose 3.5mm x 375mm long. By my calculations, a 1/8" hose would be a better fit.

[edgo]

I used 7/16 outside dianmeter automotive vacuum hose and I removed the gromet. I sealed up the space where the gromet was with silicone sealent. I also used tiny hose clamps on each end to keep the hose on. It seems to be holding up well and it works.

Ed