Similar to another thread but a bit different... Got my bike serviced 2 weeks ago, 30,000km, and rode it home 170km odd. Only thing I have done that is different is put a small ethanol blend fuel in. I only put 10L and then topped up with premium later. Anyhow, when I start it up from cold, it starts and then goes into fast idle, immediately followed by a kind of spitting stall. It will do this 3times before it is warm enough and idles properly. Then when riding it, if I give it a handfull when the revs are under approx 3800, it spits and farts and does not accelerate momentarily then picks up. I can roll on the throttle no probs and it is fine above 4k rpm. Wondering if it might be a crap sensor or such...but thought I'd post here to see what the brains trust can come up with! Cheers!