I wanted to put my stock pipe back on my bike to quiet it down to go to a campground this weekend, but I am having trouble in the low end throttle and it will stall out at idle. Top end is good. I tried turning the poilt screw all the way seated and that helped a little. Will this hurt the motor to run this way (rich or lean?). The bike is a 98' DR 350se with air box mod, fmf pipe with the removeble disks, jet kit, and the hand turnable poilt screw.