karim.marouf@cancom.com wrote:
>
> Is the spark plug color really a good indication of how the carbs are tuned?
> If so, how should the car be driven before you test them--should you
> accelerate and then immediately push in the clutch and cut the ignition, or
> is it is okay to let the car idle a short time afterwards?
>
> Karim
> '67 MGB-GT
Personally, I only use the plug colour as a general guide to the
condition of a cylinders components.
For mixture adjustment I just use lifting pins and the Mark I ear. I
tried colourtune some years ago but it seemed to only give a coarse
indication. I also used a vacuum gauge, but found that of far more use
when adjusting timing.
PaulH
|