Hey Gang,
Hoping for a little help here. I've done some searching but can't find anyone with this same issue.
My kids 90 sportsman (2005 I think) hasn't been run in a few years. It kept dying everytime he started it so it was put away in the garage for a couple years. The other day he got motivated and wanted to work on it so we took apart the carb and saw the bowl was gummed up with white crusty stuff. We cleaned it all out, cleaned the carb and now she fires right up!
The problem is that it's running extremely rough (and really loud). With the choke on it keeps backfiring and sputtering, choke off it doesn't backfire but still runs rough. When you push the throttle it sort of has a mind of it's own and revs up and down, it's very unresponsive.
Video Here:
I checked the plug and it's definitely running rich. There are no exhaust leaks. I adjusted the carb idle screw 1.5 turns out from seated. What else should I adjust or inspect?
Thanks in advance!