First put the bike in neutral and push it as fast as you can. Next jump on the bike about half way down the hill' right after you jump on, pull in the clutch, shift into 1st or 2nd gear, let off the clutch, and give the bike a little gas.
Could be valve clearance.
That depends on what you are using it for. Obviously, if you are dirt biking, you should use a dirt bike, and otherwise use a street bike. Start out with what you are going to use the most - dirt (freestyle) or street racing.
Tarrant White
First make sure the bike is in neutral and push kick start down on right side of the bike.
it is broken
Start by lookin at eBay.com, or at dirt bike scrap yards
to start of with a50cc
it won't start.....period
Sit on it, start it up and ride it.
your dirt wont start because if there is no oil there is no oil compression which will cause your dirt bike to not start Answer Before it gets to that point, perform regular maintenance and oil changes. This will increase the life of your engine.
bring it to the shop
It means that somethings wrong with it.