Instruction Manual

Q622.001

2003-2009 Arctic Cat

400I AUTO

Stage 1

For mildly tuned machines using the stock airbox with

stock or aftermarket filter. May also be used with a

good aftermarket exhaust system.

Parts List

1 Main Jet DJ128

1 Main Jet DJ130

1 Main Jet DJ132

1 Main Jet DJ134

1 Main Jet DJ136

1 Main Jet DJ138

1 Main Jet DJ140

1 Main Jet DJ142

1 Fuel Needle DNO119

2 Adjusting Washers DW0001

1 E-Clip DE0001

PAGE 1
Q622.001 2003-2009 Arctic Cat 400I AUTO Stage 1 For mildly tuned machines using the stock airbox with stock or aftermarket filter. May also be used with a good aftermarket exhaust system.
PAGE 2
Q622.001 STAGE ONE INSTRUCTIONS 1. Remove vacuum slide from carb. Remove stock needle & spacers, noting order of assembly (Fig.A). 2. Install Dynojet needle on groove #4 for applications below 5000 feet, groove #3 for above 5000 feet, using all stock spacers. Install the Dynojet washers above the E-clip (Fig.A). 3. Remove stock main jet and replace with Dynojet main jet provided. With the stock exhaust, use the DJ134 below 3000 feet, DJ132 from 3000 to 6000 feet and DJ130 above 6000 feet.