That throttle adjustment is just for response on the throttle tighten when it gets worn and stretched . Has nothing to do with the fuel flow . There is an idle adjustment it’s under a black rubber boot hard to find .
Debating getting the 110 or the 125, my son will be 7 basically and is a larger kid.. he has an electric dirtbike and does fine.. I just dont want to get a 110 and have him outgrow iit in a few years.. i want him to be able to use it for at least 5 years assuming it lasts that long.
A 22mm Nibbi Carburetor, and NGK spark plug, will get it starting, and idling better. I would put a K&N air filter on it too because the ones they come with are cheap and let in a lot of dust. The air filters that come with the Nibbi Carbs are cheap too so I am putting a K&N on my 125, and maybe that will work better for keeping dust out.
For the price the bike is good quality! The tires are not not very good other then that built good imo. I had an issue with it not wanting to start up and stay running but after changing the carburetor starts perfectly every time even after sitting pretty much all winter! I did also have a short in the kill switch but if you watch my other videos on the bike you will get a better idea of the bike. Thanks for watching!