Your right on, I was thinking later models. You can still test the needle & seat the same way. Or maybe a leaking primer? Pinch the line or try a Mighty Vac.The Keihin PWKs on that sled didn't have an o-ring on the float, that was the Mikuni design on the later engines. The Keihin float needle is rubber tipped and seated to the carb body itself. Since they are likely original and the rubber was from the pre-ethanol era its a good chance they might be shot.
Here's a exploded view with aftermarket part#'s, see #8 in the diagram. Polaris wants $45 for a replacement fuel needle.
I did the same, even wrote a whole response about Cat dealers selling the o-rings separate since Polaris doesn't, before I realized wrong carbs lolYour right on, I was thinking later models. You can still test the needle & seat the same way. Or maybe a leaking primer? Pinch the line or try a Mighty Vac.
a very light coat of petroleum jelly and they should pop right inFuel pump looks good. In process of rebuilding. Any tips on how to get the two round rubber plugs through the hole? DK has a rebuild kit for my carbs for $72.