Yamaha F6A Owner's Manual page 17

Maximum output:
F6AMH 4.4 kW@5000 r/min (6
HP@5000 r/min)
F8CMH 5.9 kW@5500 r/min (8
HP@5500 r/min)
FT8DE 5.9 kW@5500 r/min (8
HP@5500 r/min)
FT8DEP 5.9 kW@5500 r/min (8
HP@5500 r/min)
FT8DMH 5.9 kW@5500 r/min (8
HP@5500 r/min)
Idling speed (in neutral):
1050 ±50 r/min
Engine:
Type:
4-stroke L
Displacement:
197.0 cm³
Bore × stroke:
56.0 × 40.0 mm (2.20 × 1.57 in)
Ignition system:
CDI
Spark plug (NGK):
BR6HS-10
Spark plug gap:
0.9–1.0 mm (0.035–0.039 in)
Control system:
F6AMH Tiller
F8CMH Tiller
FT8DE Remote control
FT8DEP Remote control
FT8DMH Tiller
Starting system:
F6AMH Manual
F8CMH Manual
FT8DE Electric
FT8DEP Electric
FT8DMH Manual
Starting carburetion system:
Choke valve
Specifications and requirements
Drive unit:
Fuel and oil:
Valve clearance (cold engine) IN:
0.15–0.20 mm (0.0059–0.0079 in)
Valve clearance (cold engine) EX:
0.20–0.25 mm (0.0079–0.0098 in)
Min. cold cranking amps (CCA/EN):
FT8DE 347.0 A
FT8DEP 347.0 A
Min. rated capacity (20HR/IEC):
FT8DE 40.0 Ah
FT8DEP 40.0 Ah
Maximum generator output:
6.0 A
Gear positions:
Forward-neutral-reverse
Gear ratio:
F6AMH 2.08 (27/13)
F8CMH 2.08 (27/13)
FT8DE 2.92 (38/13)
FT8DEP 2.92 (38/13)
FT8DMH 2.92 (38/13)
Trim and tilt system:
F6AMH Manual tilt
F8CMH Manual tilt
FT8DE Manual tilt
FT8DEP Power tilt
FT8DMH Manual tilt
Propeller mark:
F6AMH N
F8CMH N
FT8DE R
FT8DEP R
FT8DMH R
Recommended fuel:
Regular unleaded gasoline
Min. research octane:
90
Fuel tank capacity:
12.0 L (3.17 US gal, 2.64 Imp.gal)
11