| 摘要 |
PURPOSE:To ensure engine performance even when either fuel is used, by moving a breaker part to a preset ignition timing position by a timing selector means being based on the proper ignition timing of fuel selected by selection control of a selecting means. CONSTITUTION:In a condition that a selector switch 6 is brought into contact with a gasoline side contact 6b disconnecting a solenoid 10 from a key switch 1, a device, placing a regulating rod 11 of the solenoid 10 in a retracting position, holds a breaker plate 12 in a gasoline timing position. From this condition, if the selector switch 6 is switched to an LPG side contact 6a, liquefied petroleum gas (LPG) is supplied into a combustion chamber, while the device, moving the regulating rod 11 of the solenoid 10 to a protruding position, turns the plate 12 by the predetermined angle alpha deg. to be moved to an LPG timing position. In this way high engine performance is obtained even when fuel of either gasoline or LPG is used.
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