Topic: '78 CB550 - CARBS: How much does needle height affect mixture

[jury08]

I'm running a 4into1 exhaust and knock-off K&N pods. I've replaced carb boots and manifold o-rings and and everything is air tight. I've got 42 slow jets and 110 main jets. Bike still runs lean and hot even with the mixture screw 3 turns out. My needle is currently at the 3rd position. Is the change in needle position minimal enough that I should just go all the way to the 5th position or does it make sense to go to the 4th?

[Jerry Rxman Griffin aka MuthaF'er]

1 change, 1 notch at a time

[Scott S]

http://forums.sohc4.net/index.php/topic,182280.0.html

 Some people even shim the needles with thin washers,  for 1/2 a position adjustments.