| 摘要 |
Apparatus for locking a flywheel on an internal combustion engine whereby ignition timing can be efficiently accomplished. The apparatus includes a threaded, hollow body portion that can be threaded into a crankcase inspection hole. A shaft portion having a flat end adapted to fit into a flywheel timing mark is positioned within the hollow body portion. The flat end is maintained within the timing mark by a spring positioned in the hollow body portion.
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