View Single Post
Old 09-14-2011, 09:52 AM   #90
ExTex
Gnarly Adventurer
 
Joined: May 2008
Location: Arkansas
Oddometer: 213
My understanding on Petcocks on Hondas is that there is 1 fuel line (1/4" to 5/16" ID)
and 1 vacuum line (3/32" ID). The 3rd. port on the petcock is left open to atmosphere.
In one case, I saw a filtered vent line on that 3rd. port, but it was still open to the atmospehere.

The fuel line connects to the floatbowl (s) and the vacuum line connects to the engine intake at 1 of the carbs.
From the drawing, I would guess that even though it has a hose on it, the outermost small nipple should be
vented to the atmosphere, not connected to the engine intake.

http://www.hbhonda.com/fiche_section...1982&fveh=3421

Note that the left most hose has only 1 hose clip on it and none on the "open" end.

Ride safely,
__________________
ExTex
1983 Nighthawk 650
1989 Inteceptor VTR 250
1985 Sabre 700.......Sold
1983 Shadow 500.... sold
2006 Ninja 500........ sold
ExTex is offline   Reply With Quote