High Lifter DynoJet Jet Kit for Polaris 425 Xpedition (99-02) - Manual (Page 2)

1. Remove vacuum slide from the carb. Remove stock needles & spacers, noting order of assembly (Fig. A).
2. Install Dynojet needle on groove#3 for applications below 3000 feet, groove #2 for above 3000 feet, using all stock spacers. Install the Dynojet
washer above the E-clip.
3. Remove stock main jet. If you are running the stock exhaust use the DJ142 below 3000 feet, DJ138 from 3000 to 6000 feet and DJ134 above
6000Feet. If you are running an aftermarket exhaust, use the DJ146 below 3000 feet, DJ142 from 3000 to 6000 feet and DJ138 above 6000 feet.
Be sure that the jet you are changing is the main jet.
4. Locate the Fuel Mixture Screw (Fig.B). Using a flat blade screwdriver, turn the mixture screw clockwise until it seats, then turn out 3 1/4turns below
3000 feet or 2 3/4 above 3000 feet.
STAGE ONE INSTRUCTIONS
This is Groove #1.
Q508.001
Fig. A Fig. B
Dynojet supplied parts.
Stock parts