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WR250, How to tell when piston is at Top Dead Centre?
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[QUOTE="CaptainObvious, post: 1220293, member: 17060"] With the timing chain removed, each full revolution of the crank puts the piston at TDC. As noted above, the "I" is the timing mark. You can confirm this by keeping your finger (lightly) inserted in the spark plug hole as the pressure will stop and suction will start. [/QUOTE]
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Dirt Bike Brands - Other
WR250, How to tell when piston is at Top Dead Centre?
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