I have a 1999 Polaris 250 trail boss. This last winter while riding i bogged it out and ran it till it started backfireing. I took it in to a gorage to get it fixed in May or so but havn't had time to ride it till today Labor Day.
The symptoms are it is idling fine till i push on the gas then it boggs down and shuts itself off. It also while riding has power spurts where it boggs down then gets some power and takes off then boggs down again and backfires. After that it usually shuts it's self off. I checked the air filter and it looks clean also adjusted the throtal now it at least idles which it didn't before. What should i do?
thx,
Polcow

 

maybe from sitting bad gas i would start simple but i would say carb try cleaning it. check the air screw i think is should be 1 turn out it seems like the the air/gas mix is not right
hope this helps