At 07:52 PM 6/13/99 -0400, Sam Gentry wrote:
>We just got the 80 spit running and it works well EXCEPT:  When we rev the
>engine and let it coast down it backfires and gets very rich.  Works great
>if we eliminate the air pump.  Any ideas?  I would like to keep the
>emission stock if possible.
Sam,
Chances are that your catalytic converter is shot.  That's an expensive
repair.  :(
I have left the air pump disconnected on mine because of that.   Plus, my
air pump is a bit noisy also. (Another expensive repair)  It passed the NJ
idle emissions test that way...  :)
Also, there is an off chance that your bypass/deceleration valve (front
side of carb) has been blanked off.  
Atwell Haines
'79 Spitfire
Succasunna, NJ USA
"If horrific means to make horrible, doesn't terrific mean to make
terrible?"
 
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