Originally Posted by DaveG28

Hi all,

Hoping you can help, during Neo I gave up on my Reds engine and put in a new bxrsls5 and the RB guys there tuned it in...

...anyway, having only ever had an os and then reds before, and only ever having done 6-7 nitro meetings, I never asked about the needles on the rb!

So on the below, the needle in the brass collar is the main/hls, is the other screw visible the lsn, or the idle screw? Also, is it normal to have so much screw exposed as that?

If it isn't the lsn where is lsn, and if it is is the idle screw the one on the throttle linkage?