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Yamaha FT8DMH Service Manual

Yamaha FT8DMH
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2-9
MAINTENANCE SPECIFICATIONS
ELECTRICAL
Item Unit
Model
World wide F6AMH F8CMH
USA, Canada F6MH F8MH
IGNITION SYSTEM
Ignition timing Degree (BTDC) 5 - 30
Charge coil output peak voltage
(Br – L)
@ cranking (opened) V 112
@ cranking (closed) V 154
@ 1,500 r/min V 185
@ 3,500 r/min V 185
Pulser coil output peak voltage
(W/R – B)
@ cranking (opened) V 7.0
@ cranking (closed) V 3.5
@ 1,500 r/min V 7.0
@ 3,500 r/min V 10.5
CDI unit output peak voltage
(O – B)
@ cranking (opened) V 53.2
@ cranking (closed) V 140
@ 1,500 r/min V 168
@ 3,500 r/min V 168
Ignition spark gap mm (in) 0.9 (0.04)
Charge coil resistance (Br – L)
Ω 232 - 348
Pulser coil resistance (W/R – B)
Ω 240 - 360
Ignition coil resistance
Primary (O – B)
Ω 0.6
Secondary (Between outputs) k
Ω 8.75
Spark plug cap resistance k
Ω 4.3
IGNITION CONTROL SYSTEM
Oil pressure switch operating
pressure
kPa (kg/cm
2
,
psi)
14.7 (0.15, 2.13) 14.7 (0.15, 2.13)
Oil pressure control speed r/min 2,000 ± 150 2,000 ± 150
Engine speed limiter control
speed
r/min F6A: 6,200 ± 100 6,200 ± 100
STARTING SYSTEM
Fuse A 10
Fuel enrichment solenoid
resistance
Ω 4

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Yamaha FT8DMH Specifications

General IconGeneral
BrandYamaha
ModelFT8DMH
CategoryOutboard Motor
LanguageEnglish

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