Usually a sick one will show in it's colour, like you describe your's
showing a lean mix with their white ceramics.
With a modified carb and rough idle I also think lean miss. How did you
set up your idle mix screws?
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
'New' frame in the works for '08. Some Canadian Bush Trip and Build
Photos: http://mikeromainjeeptrips.shutterfly.com
Simpson wrote:
> I pose this question in my ongoing quest to improve performance on my 87
> Dakota without spending unnecessarily.
>
> Actually, it's not the spending that bothers me. I just don't feel like
> changing my plugs. Condemn me for a lazy good-for-nothing if you will,
> but that's just the way it is today.
>
> The reason I know that they look healthy is that every once in a while I
> pull one to see how it's doing.
>
> Hello, plug
> How ya doin'?
> I come to watch your changing huin'
>
> (huin' - slangy contraction of 'hueing', from 'hue', a gradation or
> variety of a color; tint)
>
> The plugs have nice, unworn, square electrodes and are properly gapped
> and, over all, have a nice healthy appearance, albeit the ceramic
> insulators are a bit on the white side. Can I assume that they are in
> good shape? Or is there some internal condition, unseen by mortal eye,
> that can develop, that causes plug performance to deteriorate?
>
> The truck idles a bit rough, nothing at all severe, but something that I
> think could be improved. I am ruling out the fuel delivery for the
> moment and concentrating on the ignition. The cap and rotor appear to be
> in good condition. The ignition wires all measure a bit below the low
> end of the resistance range as specified in the service manual, 250 to
> 600 ohms per inch. Mine are about 200 to 220 ohms per inch and are not
> that old.
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