Originally posted by InitialD
The setting is pretty safe for Novarossi inline pipes. For other pipes, the HSN might just be too lean !
If these settings are to be used for breaking in, I would richen the needles more. Just my opinion.
If I need to tune the engine to race, what I do is best to set the LSN to 4 turns out and HSN to 6 turns out. I do this on most engines. Idle screw is set such that the slide carb is having about 1 mm hole opening when closed. You need to keep throttling to keep the engine running. Set the LSN to lean it till the engine idle RPM goes up a little and then back out a little till the idle remains constant. That should be the ball park LSN setting. Now tune the HSN till you get the engine revving to the highest RPM very easily. Then back out / richen the HSN a little. Test it on track to fine tune.
If the idle is dropping, lean the LSN a little bit more.
Thanks bro, for the explanation.. as always
