So little by little working out the bugs on a 2000 Xplorer 250. Newest issue: when shifting into reverse the engine shuts off. Not bogging the motor, literally shuts off like hitting a kill switch. Forward in Hi and Lo works fine. Reverse worked before but it's been sitting about a year waiting to afford other unrelated parts. Any ideas? Oh, one other thing. Just found the crank case vent. Is it just a vent or should it be going to one of the ports on the carb? I have all 3 ports on the carb vented now, works but adjustment seems a little wierd. Carb has already been rebuilt.