In my previous place, I used to start my Gsxr-750 and get a flat street. Without waiting the engine get hot. It used to work very well.
Recently I move to a new apartment. In this new apartment when I left my place, I get a big hill. I feel my motorbike losing torque during the uphill. This happens with the 1st gear.
Sometimes the bike "chokes" (I'm not sure if this is the correct word in English) but doesn't stop, but definitely, my bike kicks the torque.
Another day I wait at the moment the engine gets more than 50-celsius I had the feeling that my bike not "chokes" as it chokes when I get out with a cold engine.
About the bike is a Gsxr-750 13 with 8000km. I did all the services with Authorized Suzuki.