Upper Blind Spot Adjustment Device (GMP / TDC) – 8-piece set
A professional workshop instrument, screwed into the spark plug hole, designed for precise determination of the upper dead center (GMP/TDC) in two- and four-stroke engines. Essential when setting the ignition, especially in older motorcycle engine designs.
GMP is determined by turning the crankshaft and reading the dial sensor readings, which allows you to accurately set the position in millimeters before or after GMP (TDC). This ensures high repeatability and accuracy of adjustment.
Product Features:
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Precise GMP/TDC determination
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For 2T and 4T engines
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Ideal for ignition setting in older engines
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High Accuracy Workshop Solution
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Wide compatibility with spark plug adapters
Kit contents (8 pieces):
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Dial Sensor
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Sensor extensions: 75 mm and 35 mm
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Dial Sensor Holder (32 mm)
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Extension (32 mm)
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Spark plug thread adapter M14×1.25
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Spark plug thread adapter M12×1.25
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Spark plug thread adapter M10×1.0
(The full composition of the set is shown in the photo.)
