Lower Unit - Yamaha Z300A Supplementary Service Manual

Lower unit

Item
Gear backlash
Pinion-to-forward gear
Pinion-to-reverse gear
Pinion shims
Forward gear shims
Reverse gear shims
Propeller shaft shims
Propeller shaft
End play
Electrical
Item
Ignition and ignition control
system
Ignition timing (cylinder #1)
Spark plug gap
Ignition coil resistance
Primary coil
at 20 °C (68 °F)
Secondary coil
(R – spark plug wire)
at 20 °C (68 °F)
ECM output peak voltage
at cranking (loaded)
at 1,500 r/min (loaded)
at 3,500 r/min (loaded)
Pulser coil output peak voltage
(W/R, W/B, W/Y, W/G,
W/L, W/Br – B)
at cranking (unloaded)
at cranking (loaded)
at 1,500 r/min (loaded)
at 3,500 r/min (loaded)
6D03F1X
Unit
mm (in)
mm (in)
mm
mm
mm
mm
mm (in)
Unit
Degree
Degree
mm (in)
(R – B/W)
Ω
kΩ
(R – B/W)
V
V
V
V
V
V
V
Maintenance specifications
Model
Z300AETO
0.12–0.44
(0.0047–0.0173)
0.61–0.90 (0.0240–0.0354)
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
—
—
Model
Z300AETO
ATDC 7 at engine idle speed
BTDC 14 at 5,500 r/min
1.5–1.6 (0.059–0.063)
1.36–1.84
7.31–9.89
265
240
240
3.5
3.5
20.0
30.0
LZ300AETO
0.30–0.62
(0.0118–0.0244)
0.10, 0.12, 0.15, 0.18,
0.30, 0.40, 0.50
0.25–0.35
(0.0098–0.0138)
LZ300AETO
20