SPEC
2-7
6885J11
Specification
Electrical (55D, 75A models)
Item Unit
Model
55DEHD 75AEHD 75AED 75AET
Ignition and ignition control
system
Spark plug gap mm (in) 0.9–1.0 (0.035–0.039)
Spark plug cap resistance kΩ 4.0–6.0
Ignition timing (full retarded) Degree BTDC 1–3
Ignition timing (full advanced) Degree BTDC 21–23
Ignition coil resistance
Primary coil (B/W–B) Ω 0.18–0.24
at 20°C (68°F)
Secondary coil
(B/W–spark plug wire) kΩ 3.26–4.88
at 20°C (68°F)
CDI unit output peak voltage
(B/W–B)
at Cranking (loaded) V 130
at 1,500 r/min (loaded) V 150
at 3,500 r/min (loaded) V 150
Pulser coil output peak voltage
(W/R–W/Y, W/B–W/G)
at Cranking (unloaded) V 6.0
at Cranking (loaded) V 4.0
at 1,500 r/min (loaded) V 8.0
at 3,500 r/min (loaded) V 14.0
Pulser coil resistance Ω 256–384
at 20°C (68°F)
(W/R–W/Y, W/B–W/G)
Thermoswitch
ON temperature °C (°F) 84–90 (183–194)
OFF temperature °C (°F) 60–74 (140–165)
Lower unit (55D, 75A models)
Item Unit
Model
55DEHD 75AEHD 75AED 75AET
Gear backlash
Pinion-to-forward gear mm (in) 0.08–0.25 (0.0032–0.0098)
Pinion-to-reverse gear mm (in) 0.67–1.00 (0.0264–0.0394)
Pinion gear shims mm 0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
Forward gear shims mm 0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
Reverse gear shims mm 0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
Coil resistance and peak voltage are reference data.
Measuring conditions:
Ambient temperature 20°C (68°F).
6885J11_02_1 04.1.1 0:43 Page 8
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