accelerator sensing means connected to said accelerator means for generating an electric signal corresponding to the amount of {HEAD ~ movement} of {TAIL ~ said accelerator means} 
of
accelerator sensing means connected to said accelerator means for generating an electric signal corresponding to the amount of { HEAD ~ movement } of { TAIL ~ said accelerator means }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL