Slabside 11 mixture screws

[lowriderade]

Hope this is the right place to ask.

When I screw the mixture screws in I've noticed that I can just feel the tip of the #1 screw inside the carb.

#2 #4 protrudes a bit further ( 1 extra turn in  ) and 

#3 sticks out quite a bit ( can't remember off my head but it was around 2 extra turns from flush )

I've measured and examined the screws and there identical to each other.  

I've got the same issue on my RF.

So I'm wondering. If I screw them all the way in then 2 turns out. Are the mixture screws going to be set wrong.

I am trying to find pictures to better explain.

Thank you

[TonyGee]

the general rule is to screw them all the way in JUST till they stop, don't over do it, then set them all to the desired turns out equally to start with.  

[lowriderade]

3 minutes ago, TonyGee said:

the general rule is to screw them all the way in JUST till they stop, don't over do it, then set them all to the desired turns out equally to start with.  

Hi Tony gee. That is what I usually do.  I normally do it while there on the bike. But I can't get a very smooth tick over and it gets worse when the engine warms up. 

I have synced the carbs. 

I'm tempted to take the bike up the layby and try adjusting until they sound even.  But Im just curious if the drillings are different and how much effect it has.

I will take some photos over the weekend if the weather holds. Im having to work out the front at the moment

[lowriderade]

In this amazing peice of art. I show an idea of where the needles are when screwed in.

When I screw them out equally #1,2&4 can't be seen. But #3 is just visible. 

 

[Swiss Toni]

As Tony says,screw them in until they just seat. No more. Then back out as required. The probable reason for yours differing in the amount of protrusion into the inlet tract, is maybe the po was a bit heavy handed with the screwdriver bottoming them out, so slightly enlarging the hole, thus the differing levels of … penetration. 

Edited January 3 by Swiss Toni

[lowriderade]

6 minutes ago, Swiss Toni said:

As Tony says, just screw them in until they just seat. No more. Then back out as required. The probable reason for yours differing in the amount of protrusion into the inlet tract, is maybe the po was a bit heavy handed with the screwdriver bottoming them out, so slightly enlarging the hole, thus the differing levels of … penetration. 

I would imagine it was me that was heavy handed. I will be more careful in future. I was hoping it was something else like the way it was drilled or something. 

[Duckndive]

Are all the springs the same length ?

Edited January 3 by Duckndive

[lowriderade]

On 1/3/2024 at 10:26 AM, Duckndive said:

Are all the springs the same length ?

Yes.  I'm going to take the carbs off probably next week to measure up a new filter cover and give them a clean.  I'm out tomorrow night, if it's not raining I will reset the screws with the engine running. Not something I can do at home with a straight through pipe