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Posted

What do you guys that run twin carbs on a post 1975 car do for emissions on the mot.....if its set up correctly should it pass or do you put the original carb back on each year? :thumbsup:

Posted
What do you guys that run twin carbs on a post 1975 car do for emissions on the mot.....if its set up correctly should it pass or do you put the original carb back on each year? :thumbsup:

 

Setting the carbs up properly doesn't mean it'll pass an emissions test. If you have a hot cam it might want to run a bit richer on idle, I know mine does, and it won't pass an emissions test .

 

I just tweek the idle mixture screws about 1/4 turn each and it should go through :thumbsup:

 

Before I leave the test station I turn them straight back :lol::lol::lol:

Posted

Im dreading my scort going for its mot its on 40s running rather rich while idling odd bit of petrol drips out the exhaust when it gets hot it backfires :shock: think me carbs may need a twiddle :mrgreen::lol::lol: or turn up idle?

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