Remove the timing port cover.
http://www.savageriders.com/verslagen/ValveAdj/DSCN0487.JPGIt's preferred to use a 17 mm socket with a breaker bar and turn the flywheel COUNTER CLOCKWISE. The Clymer manual has this wrong! It says to go clock wise! NO! You want to turn the flywheel in the same direction the wheels turn while going forward.
http://www.savageriders.com/verslagen/ValveAdj/timing_marks.jpgTurn the flywheel around several times while watching the rocker arms and the adjusting screw go up and down to get a feel for what's going on. You will be at TDC on the compression stroke when both sets of rocker arms with the adjusting screws are down. The lobes on the cam will be down, but you can't see this.
The piston is at max height, use the screw driver or plastic straw in the spark plug hole to determine this. There should be a little play in the rocker arms now.
Check that the timing marks on the flywheel and the crank case more or less line up.
Don't be afraid to keep turning the flywheel counter clockwise until you get the hang of it and are confident that you are at TDC on the COMPRESSION STROKE.
NOTE: If you do not have a 17mm socket with a breaker bar, there are 2 other methods:
You can use a 17 mm deep socket w/a rachet, but this is tricky. Due to inertia, the ratchet tends to let the flywheel spin past where you want it to be. That's the way ratchets work; they are free to spin in one direction.
Put the bike in a high gear and push it forward... while watching the rocker arms and timing port. Or jack up the rear wheel and spin it in the forward direction.
Now we can actually measure the valve clearance and adjust it if necessary.
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