Topica Loopframe_Guzzi Archive


Subject: Re: Setting Carbs

Author: Frank Casssese

Date: Sep 19, 2002, 7:03 AM

Post ID: 1711043025


Hey cookie,
How do you like the carb tune with the rods? been thinkin of
trading in my merc ones on the rod type.
Thanks, Frank

On Thu, 19 Sep 2002 14:40:41 +0100 Martin Cooke <cook-@virgin.net>
writes:
 adjustment is done warm, but don't let motor get too hot with no
airflow
over pots.

can be done with no guages: disconnect 1 HT* lead & start
engine.screw in
throttle stop till it idles slowly. play with mixture screw till it
is at
sweetest point. reconnect HT lead.

repeat with other side. connect both HT leads & motor will idle too
fast.
screw out both throttle screws 1/4 turn at a time till idle is
850/100 rpm.

next stage is more hit & miss. equalise free play in throttle cables
by eye
(0.5>1.0mm). remove air cleaner(s) open twist grip & make sure both
slides
commence rise together. impossible to see both at once so you can
use a
mirror or if you have huge hands you can stick a finger into back of
each
carb & do it by feel.

both adjustments are far easier with guages though, and more
accurate. i use
type that has stainless rods floating in clear tubes.

cookie

*don't do this on later bikes with electronic ignition. HT leads
must be
grounded at all times on these bikes.

----- Original Message -----
From: "Keith Ruff" <klru-@fcc.net>
To: <Loopfram-@topica.com>
Sent: Thursday, September 19, 2002 1:19 PM
Subject: Setting Carbs


 Should this be done when the bike is warm or cold? As far as
synching
 the carbs, I do not have the screws in the manifold to tap into to
do
 this, should I even bother drilling the holes in them to use my
carb
 stix? What steps should be followed, I gather 1st turn the idle
screws
 all the way in (clockwise), then back them off 1 1/4 turns, then
set the
 mixture on each side (my right side seems to be dead on per the
spark
 plug condition, left side appears too rich (blackish)). After
mixture
 is set, go back and adjust idle speed on each side making sure to
do
 them evenly?

Keith Ruff
71 Police Ambassador - NJ


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