{TAIL ~ a linear solenoid mechanism} controlling said {HEAD ~ variable throttle mechanism} according to a predetermined energizing current 
{ TAIL ~ a linear solenoid mechanism } controlling said { HEAD ~ variable throttle mechanism } according to a predetermined energizing current
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH