Another Jetting Question with air box suggestions

[SHEEBANSAVAGE]

Hey y'all, I have a jetting question that involves a chopped air box lid.

 

Background: 2003 Banshee, FMF Fatty's, Power core 2 silencers, uni-air filter, boyesene power reeds, air box lid on but snorkel removed.

 

Jetting at sea level---270 mains, stock pilots and needle clip in 3rd position and I can't remember my air screw adjustment.

 

Here comes the questions:

 

1) I am going away in Sept to ride at approx 3500-4000' with temps at approx 70-95 deg F or 20 -35 deg C. When I ride in that area with the sea level jetting, I run rich obvisouly. What should I re-jet to compensate for this?

 

Here is what I am thinking. I have a airbox lid that I have the end chopped out of and when I run it at sea level It runs to lean. If I just put that chopped airbox lid on for the higher altitudes, will this compensate for the higher elevation?

 

or

 

Do I go to a 260 main, and adjust the air screw for my idle to 1/4 throttle or replace my pilot and move my needle clip to the 2nd position to make it run better for the 1/4 to 3/4 throttle and put the normal air box lid on?

 

If I replace my pilot jet, what size should I got with?

 

Let me know what you guys and gal think!!!!

 

Cheers :beer:

Edited August 20, 2006 by SHEEBANSAVAGE

[dajogejr]

You'll probably need to lean it out more than one jet to go from sea level to 3500-4000 feet.

I'd bet if you use the holy airbox lid and drop the main 2 sizes...it'll be close.

Leave the needle as is...or maybe even one clip leaner (2nd clip from blunt end)

 

Chances are...you can adjust the air screw out a 1/2 to one turn to make up for the elevation changes on the pilot circuit.