Apollo 36 250cc Basics

[apollo36]

Hey guys. New member, new to dirt bikes. I recently bought the Apollo agb36 250 . I plan to ride it on the trails and the track. The bikes been put together and have been driving it around a little bit, but have problems. Researching online, looks like some of the problems are common and there are some basic changes/upgrades that need to be done to the bike to get it in good shape and reliable (not really performance upgrades). Can we get a list together and make it sticky, so there is one place to look for these?

Some of things that I came across (in this forum and elsewhere):

NGK sparkplugs
DPR8EA-9 / DR8EA / D8EA

Mikuni Carb (for idling and throttle issues)
The mikuni should be a vm26 30mm size. Either way, start with a 115 main jet and 30 pilot with the pilot screw at 1.5 turns out.
http://www.ebay.com/itm/30mm-Mikuni-...-/262202860867

Bleed the brakes with DOT4 brake fluid

Change the oil (engine/transmission and Fork oil) before starting the bike
Recommended oil to use?

Put new and better Fuel Hose on the bike (add a fuel filter while you are at it)
Which fuel filter?

Check/set the Valve Clearance before you ride the first time
How is this done?

Tighten bolts/nuts
LOCTITE® THREADLOCKER BLUE 242

Anything more to do?

Thanks!