Hey guys, I recently bought a second hand CBF250 and have been riding it for a week. I am a very new rider so this might be a silly question. Every time I ride the bike I am unable to left the choke go under about half way even after running it for an hour. I live in Brisbane and its about 25-30 degrees at the moment. I start the bike with about 3/4 choke and then try to turn it down when it has warmed up but am never able to get it below half way without the engine rev'ing to low and dropping out. Is this normal or something I should get looked at? If it isn't normal is there anything I can do to fix this issue? Thanks.