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The lower left flipper is too weak to make the orbit shot.

Weak lower flipper: a cocktail-table coil fitted instead of the upright coil

Cause: A previous owner had fitted coil 315-1-18, which is meant for Allied Leisure cocktail tables (weaker on purpose). Upright games use 315-1-37, whose power winding has lower resistance (about 2.2 ohms against 2.7).

Checks

  • Read the coil number on the wrapper, or measure the two windings and compare with the other flipper.

Fix

  • Fit the correct upright coil, 315-1-37.

Games

Source: Pinball Repair help group!! (Facebook group)