wherein {TAIL ~ an engagement control} for {HEAD ~ the neutral control clutch} is changed in accordance with a length of time of a control executed by the neutral control unit 
wherein { TAIL ~ an engagement control } for { HEAD ~ the neutral control clutch } is changed in accordance with a length of time of a control executed by the neutral control unit
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH