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Where are engine timing marks on Honda qa 50 engine?

Flywheel Timing Marks (50 and 70cc Engine)

1. "F" Timing Mark - indicates top of the piston travel (Top Dead Center).

2. "T" Timing Mark - indicates ignition timing (when using the stock plug with a 0.024 - 0.028in gap).

These marks are visible by removing the flywheel housing cover.

Camshaft Timing Marks (50 and 70cc Engine)

1. "X" Timing Mark - indicates the camshaft timing.

This mark is visible by removing the valve cover.