Sorry, looks like I hosed the other thread.
Anyhow, here is the answer:

Right from the Polaris Manual (mine is a '98 manual):
QUOTE
[ul]
1. Slide boot off throttle cable adjuster and jam nut at throttle block.

2. Place shift selector in neutral and set parking brake.

3. Start engine and set idle to. [/ul]
End QUOTE

I didn't write this, I'm just copying what the book says!

QUOTE
NOTE: Be sure the engine is at operating tempeature.
See Idle Speed Adjustment.
[ul]
4. Loosen lock nut.

5. Turn cable adjuster out until engine RPM starts to increase.

6. Turn cable adjuster back in until throttle lever has 1/16" (.16cm) of travel before engine RPM increases. Be sure ETC switch plunger is held inward by throttle cable tension.

7. Tighten lock nut securly and slide boot completely in place to ensure a water-tight seal.[/ul]

NOTE: On 2-stroke models, whenever throttle cable adjustments are made, always check oil pump adjustment.
Refer to pages 2.19 - 2.20 for adjustment procedure.
[ul]
8. Turn handlebars from left to right through the entire turning range. If idle speed increases, the throttle cable freeplay must be increased, or check for proper cable routing. [/ul]
End QUOTE