Speedytriple

at a quick guess i would say thats all to do with the auto choke, which from my experience work off water temp, when starting from cold it needs more fuel to start and as the engine starts to warm or the ambient temp in the fuel warms the automatic choke starts to disengage, its likely that the system is sticking or that you havnt taken any notice of it before, it does happen you hear or see some thing and say ive never seen that before and its been there all the time, hope you make sense of this regards jim