Topica Loopframe_Guzzi Archive


Subject: Re: An oddity

Author: Ian Adkins

Date: Apr 19, 2001, 10:58 AM

Post ID: 1706382808


Bob,

On the intake issue. Later carbs (square ones) were indeed longer than the
original (round) carbs and required a different manifold.

Recently I did the same conversion on my friend's V700 and we ran into the
same situation. What you need to do is find a right side manifold. You will
know it is the right one by a little letter (either "s" sinestra (left) or
"d" destra (right)) on the manifold. I believe that you can also use a set
of T3 manifolds too but you will need to use the plastic insert thingys that
are with the 29's. Time to call Mark to see if he has some laying about.

Definately the fact that the carb is leaning will cause you problems. When I
was helping my friend we were getting fuel running out of the overflow holes
in the carb and we were scratching our heads over this. Finally he tweaked
the carb just a bit to change the angle and it hasn't leaked since.

Just another on of these "Strange but True" stories relating to the
Loopframes.

As for the aluminum foil trick. I don't think it is neccessary (no offense
intended). Since this problem is happening early in the ride (before the
engine gets really hot) and on cool days and because the carbs are free to
the air I doubt that this is a problem. I once had to idle in 80F heat for
over 20 minutes waiting to get across the bridge with no fuel boiling
problems. Get that carb vertical and you might have you problem solved.

OK Bob...get to it. The Western NY Rally is a little over a month away and
I'm thirsty :-)

Regards...Ian


-----Original Message-----
From: Robert Hawkes <haw-@frontiernet.net>
To: Loopfram-@topica.com <Loopfram-@topica.com>
Date: April 19, 2001 11:45 AM
Subject: Re: An oddity



 
Peter,
This is interesting. It just so happens that the starboard carb is leaning
toward the engine. It has to on account of the bowl touches the engine
case. The intake tube is not long enough or is not angled correctly to
push
 the carb back away from the head so that the bowl should not touch the
engine case. I did not say this either in my GREMLIN WANTED email (it seems
I have done so much to this bike that I can't remember it all!!) but I
installed an extra carb gasket between the carb tube and the head so now
there are two thicknesses of gasket there to try to back that carb up a
bit.
 It did not work very well. Also, the old round slide carb did not touch the
engine case. I will keep this theory in mind though as I have heard it
before and didn't think of it until you made mentioned of it. I will try
the
 aluminium foil trick. Best, Bob Hawkes

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