Topica Loopframe_Guzzi Archive
 

Subject: Re: Digest for Loopfram-@topica.com, issue 218

Author: jason telford

Date: Jan 17, 2001, 7:02 AM

Post ID: 1704958214


Basically did what was described below. For cleaning a jet orifice, go
with soft metal wire. But on the amals, there's this awful passagway (its
either the pilot or midrange- I think pilot) that comes off a jet (from the
floatboal) to the front (cylinder side) of the carb. It sucks up gas from
the bottom of the float, and so it -apparently- pulled up some crud as
well. It clogged the passage, not the jet. Sorry for the poor
description earlier.
I tried everything- berrymans B12, WD40, water, gas, air (not fire, but I
thought about it). Finally I 'drilled' it out with a piece of brass wire.
Just worked it from one side then the other- finally got it out.
If you've really cleaned the carbs jets, check the passages. Or maybe
someone earlier is correct, and it could be the slides leaking. Just look
to see if they are scored on the front.

Just found this: There's some cutaway pics of amals on some guys website in
Sweden. About halfway down, theres a cutaway pic of the pilot jet system
that got clogged on mine. Labels are 'air' and 'fuel' in blue and red
respectively. My fuel clogged.
http://www.ingfatrygg.se/amal.html
Cheers,
Jason
BTW, to make the slides fit is just a matter of sanding down the slides
with fine grit until they fit inside the carb body. Fun-max.

 

Eric,

Yes this was definately suppose to hit the list :-)

How did you rebuild the slides? What needed to be repaired?

Thanks....Ian

 
 
 Jason,
How do you clean a jet on a carb? Thanks, Bob Hawkes

Not sure if this was meant to go to the list, but the best way is to soak
in solvent and blow it out with compressed air. Keep a steady grip on the
jet or it may end in orbit, center the air on the jet or it will burn
your fingers.

If repeated soaks and blowing don't work, you can do what every carb
manual in the world tells you not to do. Work a small wire thru it. The
risk is that you may enlarge the jet and ruin it's calibration. I use
stranded copper wire--take one strand and work it thru. Since the jets
are brass, there is less likely hood of reaming while cleaning, since the
wire is quite soft.

The other thing to do, if you are not as incredibly cheap as I sometimes
are, is to go down to the Guzzi store, or write Mark, and just buy a new
one. Jets are usually $2-3 for most bikes, although, one never knows with
Guzzis.

I just rebuilt my flat slides. I've had extensive experience with Amals,
and their clones--Mikunis. The flat slide Del Orto is certainly an
beautiful piece of work. Made to be rejetted when stopping for lunch
when changing altitude, and just beautifully constructed.

Eric Lamberts
Amal retentive Del Orto convert..
ew-@unr.edu
Reno, Nevada USA

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