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Title: Afr reading Post by: Garrick Clark on February 24, 2019, 11:32:28 am Hi. I'm using a pair of 40 dells on my N/A engine.
When I drive it at a constant speed, say 60, 1/3 rd throttle opening I'm at 13.1. Then when I lift off the throttle the gauge shows 10. Sussed it. On over run , throttle is closed ,so vac pulls fuel out the mixture screws and no AIR will enter the engine because of closed throttle plates resulting in a rich mixture which shows me 10 on the gauge. Title: Re: Afr reading Post by: Martin S. on February 27, 2019, 01:10:02 am Interesting. That’s likely why my fuel injection system has a deceleration cut off.
It can feel like an electric brake on a circular saw :P |