by KRCRFs » Fri Mar 23, 2007 6:03 am
I made one for my wife's Big Gun out of the old, stock heat quard. I basically turned it over, cut off the excess, drilled a new hole, filed off the sharp edges, and touched up the paint.
Here is a pic:

Kim's: 04 250X
13/51 with +11
Main Jet: 138
Air Screw: 2.5 Turns
Kathy's: 04 230F
13/48 sprockets
Main Jet: 132
Air Screw: 1.5 Turns
Common:
Pilot Jets: 42
Stock Needles: 4th Pos
No Screens or Baffles
Open Air Boxes, Twin Air Filters