If your in the USA then Zongshen America is the main importer/supplier of parts/info etc. As for the choke, this is how I start up: Turn petcock downward. This is normal for almost every make of bike. There r 3 positions for the fuel tap: Lever pointing sideways is OFF. Lever point down is normal ON position. Lever point UP is reserve tank. Use that UP posi if the fuel conks out in normal position and u need toi access extra 2 litre of fuel. Really though there is no separate reserve tank. It'sjust a lower sample point for the fuel in the tank.
Next pull clutch in and lift sidestand ready to drive off. Theres a cut out switch built into sidestand to stop engine starting when bike is resting on sidestand. Next pull OUT choke to say about half way position and operate electric starter button. I usually push choke in after about a minute or so of riding. Depending on temp u may need more choke to start. But I always use some choke even in summer otherwise it just desnt start. Just make sure u PUSH choke back IN flat with dash after warm up.
And also, once your bike engine is warmed up, when u restart after stopping, DONT use any choke. If you pull the choke out, even slightly, once engine is warmed up, you will likely stall the engine or not be able to restart the hot engine.
There's already a lot of info on this site re maintenance/oil change info etc., so just browse thru the topics. Ring Zongshen USA and check the engine number to confirm you have a 250 (230cc) or 200cc engine. But oil should be the same type.
