Owner's manual

Q529.001

2008-2011 Polaris

Sportsman 400

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 DJ146

1 Main Jet DJ150

1 Main Jet DJ155

1 Main Jet DJ160

1 Main Jet DJ165

1 Main Jet DJ170

1 Fuel Needle DNO371

1 Slide Spring DSP007M

1 Adjusting Washer DW0001

1 E-Clip DE0001

1 Plug Drill DD 5/32

1 Screw DS0001

PAGE 1
Q529.001 2008-2011 Polaris Sportsman 400 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
Q529.001 STAGE ONE INSTRUCTIONS 1. Remove vacuum slide from the carb. Remove stock needles & spacers, noting order of assembly (Fig. A). 2. Install Dynojet needle on groove #2 for applications below 3000 feet, groove #1 for above 3000 feet, using all stock spacers. Install the Dynojet washer above the E-clip. 3. Install the Dynojet slide spring (DSP007M) in-place of the stock slide spring. This is Groove # 1 4. Remove stock main jet and replace with Dynojet main jet provided.