Fuel Pressure Reg hose ?

[BruceG]

Had the side panels off my 2000 ST today, routing wires for a horn & relay install. I noticed that the fuel pressure regulator has a hose barb but no hose connected. I could not find a loose hose end anywhere and my Haynes manual doesn't say where the hose leads. The Triumph manual doesn't mention the hose at all.

Thanks for any info

Bruce G

[Jhumphrey]

My '01 is the same way, no hose, never had one. Cant say I even know what its for.

[rash_powder]

That opening is for the atmospheric pressure detection. There doesn't need to be a hose on it. That opening is how the pressure regulator calibrates itself to the pressure it is set to deliver fuel at.

rash