I need to know where the spark pug is on a yamaha yfz 450. I'm new to quads. I really need to know thanks.

My bike wont start. If i pull it with my truck it will start but it wont stay on once the speed goes down or if i hit the clutch. I'm pretty sure its flooded. I want to clean the spark plug. It was running good yesturday, but i took it to get the oil change. While it was getting the oil change the avt was picked up from the front and the gas was not shut off. Any help will be appreciated.

So i took the spark plug off cleaned it and it still wont turn on. Could anything else have gone bad by picking it vertically? It was up less then a minute. Pulling it with the truck it turns on and runs as long as the wheels are moving. I try to give it gas and it sounds like its getting to much gas. I wont stay on by itself. Does it take a while for it to dry if its flooded? Thanks

Under the gas tank.

dude you need to take the quad to the honda dealer and let them fix it.
then have your dumb *** friend pay for it.

http://www.bikebandit.com/parts/
Go to - your machine - Cylinder
In the center of the cylinder head cover, the spark plug is in a recessed hole.
You may need a special spark plug socket to fit in the hole.
If you have the plug wrench that came with the quad, use it.

What year is it and how many hours are on the engine.
Might only need a valve adjustment.
I've had quads standing up on the rear bumper for over 2 hours with never a problem.
The gas from the carb is going to fall down, towards the air box and/or out of the float bowl over flow.
It won't go up and flood the engine.
It couldn't hurt to check the air cleaner.