I have My Ozark all apart to check the valves. I have the engine plug out to see where top dead center is and there is a blue line on the rotating valve shaft. Which way should it be pointing for top dead center. I was told to check the clearance on the compresion stroke. So does that mean I need to check the clearence when the pyston is at top dead center? Do I check both valves at this setting? Also when I unscrew the cap above the valve it looks like I need a 90 degree bend in the gauge to check it. Is there a special gauge for doing this? Also which valve is the intake and exhaust? There is one on top and one towards the front of the engine the way it sits in the bike.

thanks for your help

Chris