Doug, I used one years ago in the UK to tune my twin SU 1500 Dolomites with
great success combined with a Gunsons Carbalancer (I think it was called), so I
bought one a month ago. Also so did Reid Simmons. Reid used his successfully as
he was running rich as well. Mine just so happened to prove it was spot on so I
did not have to make any adjustments. I had found beforehand that the neddle
was not caught on the threads on the piston and so adjusting the piston via the
special tool made no difference. When we tried mine we ran through the various
tests and it worked fine with the colours changing as shown on the sheet of
instructions that accompanies it.
Just to let you know that they do work. The choke's not stuck is it or a lack
of air causing a rich mixture? Sorry but can't think of anything else.
Alan
Original Message:
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From: Douglas Braun & Nadia Papakonstantinou dougnad@bellatlantic.net
Date: Wed, 05 Apr 2000 14:19:29 -0400
Subject: Colortune Difficulties
Hello all,
My Spit has been idling sort of rough ('72 with stock Stromberg),
so I tried to use a recently-purchased Colortune to set it right.
I found that the flame was ALWAYS yellow, no matter how much I
adjusted the mixture.
I tried both lifting and pushing down the carb piston until it wouldn't run any
more,
and the flame stayed yellow. (So I know the problem is not a broken needle
adjustor
mechanism).
When I pull a plug, even after several minutes of idling, it always has
a textbook-perfect light grey deposit.
I tried this on two different cylinders, with the exact same result.
Apart from the somewhat rough idle, the car runs fine, and always starts right
up, even in the middle of winter.
So, does a Colortune REALLY work?
I am tempted go spend more $$$ fore a real CO meter, but I hate throwing
good money after bad. Any advice?
Doug Braun
'72 Spit
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