Suzuki DF 40 Service Manual page 147

POWER UNIT 6-4
Remove battery charge coil . (See page 4-4)
Disconnect CKP sensor connector and remove sensors .
Disconnect cylinder temperature sensor connector and remove
sensor .
Remove two bolts and rectifier & regulator.
Remove bolt and low pressure fuel filter bracket.
Disconnect water hose from thermostat cover and engine
holder.
Disconnect exhaust manifold temperature sensor connector and
remove sensor .
Loosen screw and disconnect oil pressure switch lead wire .
Disconnect neutral switch lead connector wire .
Disconnect all engine wiring harness connectors from ECM,
then remove ECM .
Disconnect the PTT motor cable wire leads (G, Bl) from the
PTT relays.
Remove positive (+) battery cable from starter motor relay.
ECM