I've been running a thermo-bob for two years on my 2009 and it works great. I don't warm up my bike and instead I just start it as I'm rolling down my driveway and just cruise for about 2 mins. After 2 mins I'm already at 150f and only a min or so later I'm at a full temp of 190f. I'd imagine the fact that my bike warms up so fast now as helps with me never needing the choke because by the time I come to the first stop sign I'm already well over 100f.
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