I did warm the motor up before I tested it and put a little pre mix in the plug hole before it kicked it. I kicked it about 1o times. The last time I rode it was in West Va, it was about 50 deg. It started running rough the next time it rode it, it was about 35 deg in NJ. It has Toomey T-6 pipes with the jet kit, uni filter and a boost bottle. That's the way I bought it.