sparkplug reading - Color Tune

[mike mager]

Mike asked: (complete quotation below)

>By colour tune, do oyu mean that special spark plug with quartz window, 
>because I've got one of those and could do with 5 more ;-)

That's the Color Tune, yes.

>Tried it on a 4 cyl 1600 - very difficult to look at the plug when its on 
>load,

There is a 'view scope' with it in the box;  it is just a tube to extend it 
a bit, and to block the ambient light, and there is a little adjustable 
mirror on it for sparkplug holes that are at bad angles.

Mike


>From: "Mike (Perth, Western Australia)" <erazmus at wantree.com.au>
>Reply-To: diy_efi at diy-efi.org
>To: diy_efi at diy-efi.org
>Subject: Re: sparkplug reading - Color Tune
>Date: Fri, 17 Mar 2000 02:03:42
>
>At 09:21 AM 16/3/2000 PST, you wrote:
> >The "New Color Tune" is here!
> >Do any of you have experience with Color Tune?  David Vizard says that
> >sparkplug reading is a very unreliable way of setting mixture strength;  
>he
> >likes to use an EGO and a Color Tune.  I won't just automatically believe
> >everything that I read, but his suggestion does at least pass a first 
>check
> >of reasonableness.
>
>By colour tune, do oyu mean that special spark plug with quartz window,
>because I've got one of those and could do with 5 more ;-)
>
>Tried it on a 4 cyl 1600 - very difficult to look at the plug when its
>on load,
>
>*grin*
>
>A helpful tool though for for idle tuning,
>
>Rgds
>
>:) Mike
>
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