I have no idea if you guys are talking about a trail boss (4-stroke) or the trail blazer (2-stroke). They are completely different carbs and the 4-stroke one is a lot more complex. I believe it has an accelerator pump in it. I had a guy rebuild the 325's carb because it is pretty complex; the needle and seat are what he said stick a lot and you can't fix it, just have to replace. I'ts been about a year now and I have not had a problem with it. The Polaris replacement parts are about $40 for the needle and seat. FYI, he said on the 325, they will run completely differently if you have an air filter on/off and/or the airbox lid on/off. Here is is website; he is local to me here in Dallas. PolarisATVrepair.com | Local ATV Full Service, Engine Rebuild Services, Engine Rebuild Kits, Clutch Puller, Bearing Kits and more! His specialty is actually repairing/rebuilding 400 2-stroke engines, and people mail him complete engines from all over the USA.
On the 250 2-strokes that I own, the carbs are very easy to take apart and clean. We have 3x 250's, and I have had a 400 Scrambler in the past. One of the float needles leaked after converting the bike to premix, but no big deal.
I have taken all of the 2-stroke carbs apart and cleaned them when I first got the machine. Converted all the bikes to premix at 32:1 with polaris gold oil, and run stabil in the gas. Only use them 4-5 times a year; never had a problem with needing to rebuild the carbs. I've had the 2-strokes 4 years so far.
On the 250 2-strokes that I own, the carbs are very easy to take apart and clean. We have 3x 250's, and I have had a 400 Scrambler in the past. One of the float needles leaked after converting the bike to premix, but no big deal.
I have taken all of the 2-stroke carbs apart and cleaned them when I first got the machine. Converted all the bikes to premix at 32:1 with polaris gold oil, and run stabil in the gas. Only use them 4-5 times a year; never had a problem with needing to rebuild the carbs. I've had the 2-strokes 4 years so far.