Jason, my engine (recently rebuilt -- so probably no carbon buildui)
was doing the same thing (also back-firing during over-run). I
richened the SUs a few flats and both problems were solved. Then
again, my carbs are pitifully worn (leak oil, blood, etc) and I'm a
pitiful carb tuner.
-JC
--- Jason Burden <jayburden@home.com> wrote:
>
>
> Out of the blue, when I turn the car off the engine
> "chugs" a few times
> until it finally turns off completly. Never has done
> this before. It doesn't
> seem to matter if the car has been run a long time
> or just a short trip. I
> have tried using premium grade gasoline, as well as
> the cheap stuff, no
> difference. It has never done this till recently.
> Anyone have any ideas?
>
> Also.. what is the general temp my sprite should
> run at at normal operating
> conditions? I seem to be creeping a little high (200
> +) lately.
>
>
> Jason Burden
> 1967 Sprite
>
>
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