do they have a cold idle? mine idles way to low or something. its a bit of a bugger to start, tried full choke and no go (by way it does start its stubbon) and then half same thing then none. i noticed half choke and tiniest little bit of throddle works too much at its the same thing. i have changed the plug and just stuck with std one out of the book as i havent fully run it in yet. i have got it idling a few times for little while and gave few revs to try and get it warm.
yes the battery in these are only good for door stoppers mine died first day. i took it for a run only few k's it had right amount of oil so did a few 4 i think with the breakin oil. that stuff looks dreadful colour, it doesnt even look like oil. but when i got it warm it idled just a touch too low but was still sitting there idling so it was ok but its a stubbon pig to start and get it to idle i am not sure if it is flooding, or just running a bit rich, there is a yellow mark on the mixture screw and its not aligned with it. They must mark it before they first start it.