Hello All

First time poster here. I have a 2006 Rhino 660 with about 100 hours. A few months ago it began to stall once in awhile most often while climbing a 30 degree slope at maybe 1/3 throttle but sometime stalls on the flat and level at idle. It will aways re-start with the choke. It's happening more frequently now so trailered to dealer (200 miles round trip). The dealer replaced the fuel pump but I still have the same problem.
Anyone have any ideas? Thanks in advance.