I had my sled the other day, sled an great. Put gas 93oct. on the way home. Next day i rode it it started bogging down between 60 and 70 at WOT. the outside temp was 37 degrees. My carb heaters were on. I thought maybe that was it. Today i shut off the heaters before i started. same thing bogged down around 60 when i gave it full trottle. If i give it gas slowly i can go as fast as i want with out the bogging. only happens after 60 when i hit it. any ideas??? the sled has only 1000miles on it.HELP!!!!