Weak idle until hot

[chuck hahn]

Go in the middle of the range is what i shoot for. Same when setting float hts. What did the plugs look like to each corresponding carb?? Fuel to air ratio affects it too. Too rich and it needs to warm up a LOT to get sufficient heat in the cylinders to vaporize fuel easier. Picture putting water in a frying pan cold and it takes a while to boil. Heat the pan up real good and put water in and it instantly sizzles.. Same principle applies with the cylinders.
General forum wisdom says set the side air screws at 1 1/2 from seated as starting point.

[DimitriT]

I just shoot for the lower edge of the bowl lip or where the screw fasteners come up against the bowl. This is about 5mm from the edge of the carb body. The manual says to measure while the bike is running but I that's a pain so I do it with the carbs off the bike. I did manage to get them about right and the carbs are back on the bike. I ran it a few seconds to make sure nothing went wrong but I won't really be able to test until the March.