Hi, I bought a used 2003 recon with a recently rebuilt engine. It runs and sounds great, and has a lot of power, but every now and then it dies when I'm going up a steep hill, or have just went over a steep hill and leveled back out. It also kind of sounds like a soft backfire like sound when I'm in 5th at high speeds and let completely off the throttle to roll to lower speeds. (It doesn't pop and make a loud noise like a backfire, but it kinda reminds me of a soft sounding backfire)
I had been messing with the pilot screw idle screw and i never got it where I wanted it, so I took the carb off, it did have a couple pieces of black specs in the bowl (very small specs, it pretty much looked really clean) I blowed them out with an airchuck and blew out the jets.
Has anyone ever experienced this? Does it sound like I don't have the pilot/idle screw adjusted properly, something wrong with the carb, or another problem?
Thanks hope someone can help.