Originally Posted by Skid
If you replace the bulbs, don't rev the engine when you start it. Revving the engine will just fry your new lightbulbs. Just let it idle and see if the new bulbs light. If not, pull the yellow wire off the regulator and check for lights. Although they're a little pricey, get an OEM regulator. Aftermarket ones are junk and Polaris has superseded the original with one that is much better quality. Check Polarisman.com.
Yeah definitely don't start the sled if the bulbs are blown. I just wanted him to verify whether they're blown or not. If they're blown then it's the regulator, if they aren't blown then you'll have to look elsewhere for problems.
And yes, the new Polaris regulators are much better quality but tricky to mount on some applications.