The compact PGM-FI has been realized through the ultimate modularization of components.


To attain clean exhaust gases and high fuel economy, an electronic fuel injection system that permits accurate control of the air-fuel ratio should be applied. The development team at Asaka R&D Center consolidated the functions into the size of a conventional carburetor through the ultimate modularization of components, thus developing the ECU-integrated throttle body for an electronic fuel injection system for small displacement engines.

Important points on the development
The future of this system is in such a construction that combines the two modules, i.e., the throttle body module having several kinds of bore sizes in the series, and the ECU module in that the ECU, sensor and the idle air control device are packaged in a compartment. Eliminating complex wires and pipes to allow a compact system, the compact fuel injection system applicable to a single cylinder engine from 50cc to 250cc has been developed.

PGM-FI unit
For global environment protection
In 1992, Honda addressed to the world the "Honda Environment Declaration", in that declaring "Actively be involved in the retention of personal health and preservation of global environment, and maintain advanced characteristics in such activities."

And based on such principles, to have the products used by more people and to further contribute to the preservation of global environment…, the first model "Pantheon" using the newly developed PGM-FI has been marketed in the 125cc class, which is the most popular class in Europe.

Then, in an attempt to apply the technique to the Asian market where demands are high for motorcycles, the new model "Wave 125i" having the PGM-FI has been introduced for Thailand.
Models using the compact PGM-FI
Pantheon/Pantheon 150
The scooter "Pantheon/Pantheon 150" (for Europe) having a water-cooled 125/150cc engine equipped with the PGM-FI
Wave 125i
The PGM-FI (electronic fuel injection system) applied to the stylish, Super Cub type "Wave 125i" motorcycle using an air-cooled, 4-stroke, single cylinder 125cc engine (for Thailand)


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