Here is tips for you buddy. I been in bicycle engine for a while now. I tore them apart , rebuild them, modify them for more speed, and a lot more. I suggest for a first start up of the day to turn your choke on and once it starts after 15 to 30 Seconds of running, turn it off and your good to go. Another tip is , there is a needle in your carburetor that has a clip on it, you adjust that clip based on your elevation and this with proper adjustment helps with keeping it running and giving proper power without 4 stroking, which 4 stroking is when your bike is reving up real high and you don't gain any speed or power. The clip is very important to have set right. Also the air fuel screw on the carburetor is important to have set proper because it opens the flap that allows gad and oil mix into the crank case to keep it running, turning to the right will allow more gas mix and to the left , less gas mix. I usually go all the way right till it's tight and then back it out 4 and a half turns and this generally is a good starting point. That is all stock pointers, now with mods , everything changes. There is a ton to learn about these engines and a ton of content on RU-vid about it. Good luck buddy and I hope I helped in some sort of way. Have fun and be safe.
Also make sure with hills that you have 44 tooth sprocket on back tire, that way little to no pedaling is required. 32 tooth is for flat land and more speed as where 44 is better for hills and keeps a moderate speed with everything else.
