FCR Carbs - What causes the flat spot right off idle?
 

I was told this is normal but I DONT LIKE IT!! If I am at idle and punch it, it will fall on its face. But if I gradually give it gas it goes real strong. I dont get it?? Is it my needle settings?

FCR Carbs - What causes the flat spot right off idle?
 

The reason being is because the fcr's have an excelerator pump that pumps fuel like crazy into the intake ports. In other words a rich condition stumble!!!
But there is hope it is adjustable!!

FCR Carbs - What causes the flat spot right off idle?
 

Tune me in bro, Tune me in..... [img]i/expressions/face-icon-small-happy.gif[/img]

FCR Carbs - What causes the flat spot right off idle?
 

it doesnt do that for me im betting that your jetting is off.

FCR Carbs - What causes the flat spot right off idle?
 

Thats the way it was setup by Sparks racing with my 690. I have heard from several people that it can be adjusted but didnt know where the adjustment was. I asked Curtis why is that but he insisted that I keep it that way but I dont like it.