Suzuki DF300 Service Manual page 136

5. Connect the 26 pin (A)/(B) and 36 pin test cord between
ECM and wire harness as shown in figure.
6. Connect tester probe ("+", Red) to No.20 terminal.
Connect tester probe ("-", Black) to No.32 terminal (or to
body ground).
7. Disconnect shift motor lead wire connector from engine wir-
ing harness
8. Turn main switch ON.
9. Check that the clutch lever is in neutral position.
Move the clutch lever slightly in forward and reverse direc-
tions within the neutral range to check for the lever play and
locate the lever in the middle of the play. With the lever held
in this position, check for the shift position sensor output volt-
age.
Sensor output voltage in Neutral position: 2.46 – 2.54 V
10. Move the clutch lever slowly in the forward direction while
turning the propeller and check for the sensor output voltage
just when the clutch dog begins to contact the forward gear.
Sensor output voltage in gear engagement start:
11. In the procedures 9 and 10, if the sensor output voltage
measurement is out of the specified range, adjust the posi-
tion of shift position sensor installation.
53 54 55 56 57 58 59 60 61 62 63 64 65
66 67 68 69
(White connector)
70 71 72 73 74 75 76 77 78 79 80 81 82
83 84 85 86
(Black connector)
26 pin (B) test cord
Reverse
Clutch le Clutch lev v er er
2.9 – 3.1 V
ENGINE CONTROL SYSTEM
27 28 29 30 31 32 33 34 35 36 37 38 39 1 2 3 4 5 6 7 8 9 10 11 12 13
(White connector) (White connector)
40 41 42 43 44 45 46 47 48 49 50 51 52
14 15 16 17 18 19 20 21 22 23 24 25 26
(Black connector)
(Black connector)
Wire harness
20
(Black connector)
Shift motor
Neutral
Forward
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