I just got mine a few days ago and was breaking the engine in yesterday. Today I've been having trouble with the bike running poor at times. Sometimes I'll get on the gas and it'll burble and studder through the powerband. Then it'll be fine. I'm not going easy on throttle anymore. I've gone through a few plugs also. I'm using Hp honda oil @ 32:1. The temp outside is about 40 degress F. Completely stock engine. I'm thinking it's jetting but she'll run great sometimes. Any help is appreciated.
