Topica Loopframe_Guzzi Archive


Subject: RE: Fuel Petcock Problem

Author: Kevin Graf

Date: Jun 6, 2002, 8:21 AM

Post ID: 1710385711


Keith,
I think there's two on each carb (VHB 29). Only one will be visible while
the carb is on the bike. Never traced 'em to see where they go, but one's
near the enrichener part of the carb body, the other is above the bajo fuel
inlet. Good call John.

Kev

-----Original Message-----
From: Keith Ruff [mailto:klru-@fcc.net]
Sent: Thursday, June 06, 2002 8:42 AM
To: Loopfram-@topica.com
Subject: RE: Fuel Petcock Problem


Ya know, cometo think of it, the previous right side petcock never
flowed even as fuel was emptied out of the lines, I hate to admit it,
but I learned my lesson to change out these petcocks after I ran out of
gas on the way to work - but the right side of the tank did have fuel,
but it refused to flow out of the petcock. Where are these carb vent
holes? Perhaps that is my problem. Don't want to get stuck on the road
again because fuel won't flow out of the petcocks! Will have to take a
close look at these vent holes.

Keith Ruff
71 Police Ambassador - NJ

John Prusnek wrote:
 Keith:
Just a stab in the dark here, but there's a little vent hole in the
top of each of your carbs to allow air to escape, and therefore allow
fuel to flow into your bowls. If the vent hole is blocked, it may cause
the problems you are experiencing. Let us know if this is it.

John Prusnek

 Date: Wed, 5 Jun 2002 13:48:46 +0000
From: Keith Ruff <klru-@fcc.net>
Subject: RE: Fuel Petcock Problem


Good points, I'll go buy some extra fuel line and test each petcock
individually to see if they are working. There is gas in the lower
lines (below the "T" from the left/right fuel lines), so the bowls are
probably full. The upper halves of the fuel lines were dry (above the T

going to each petcock) and that is where the fuel refused to flow into
when opening the petcocks, wasn't until after I loosened the hose clamp
that air escaped and the fuel flooded in and backed up out of the hose
by the clamp. I just wonder with the clamp tightened up again if air
will not go back up into the tank and she will run dry again.

Keith Ruff

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