[JerryHawk250]

You have a dry clutch system so you can run any 10w30 oil including Mobil 1. Don't run synthetic until you put some hours on the motor to let it break in and the rings set. You can also flip the rear wheel so the valve stem is on the inside to change the offset and have a wider wheel base at the rear. I see your tires are directional so you will have to swap them from one side to the other. this will make it more stable on turns. As far as the light bar I would run it to the battery with a fuse and switch. A lot of the vibration you are getting will go away after the engine breaks in. Try adjusting the idle screw on the carburetor. it's more than likely set to low. That should resolve the starting and idling issue.