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Flywheel mark / timing question

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So this is my first time doing a top end, I'm installing an athena 290. My flywheel has 3 marks on it. Two are close together, about 1/4" apart. The other one is by itself maybe 90 degrees or so away. (not positive on that) Which one is the TDC mark? I have the spark plug out and When looking down at the piston none of the marks seem to line up when the piston is at the highest point. What am I doing wrong here. Is it possible to have the flywheel on wrong? By the way the bike is an 06 kx250f.

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