Pulse Air Injection, fuel & evaporative controls systems

Pulse air injection system; evaporative and fuel solenoids systems, as on BMW Airhead Motorcycles Pulse-Air (Clean Air) System Description: Beginning with the 1980 U.S.A. models, BMW incorporated a modification that injected clean air drawn from the aircleaner area into the exhaust ports. Only the┬árectangular air-cleaner bikes have this system. The purpose of this essentially passive […]
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