Yamaha F25 Service Manual page 17

SPEC
Model features
General feature .......................................................................... 1-1
Model designation ...................................................................... 1-2
Serial number ............................................................................. 1-2
Model data
Dimension and Weight ............................................................... 1-3
Performance............................................................................... 1-3
Power unit .................................................................................. 1-4
Bracket unit ................................................................................ 1-5
Lower unit................................................................................... 1-5
Fuel and oil requirement............................................................. 1-6
Battery requirement.................................................................... 1-7
PTT requirement ........................................................................ 1-7
Electrical technical data
Ignition timing control system ..................................................... 1-7
Engine speed control system ..................................................... 1-9
PTT system .............................................................................. 1-10
Charging system ...................................................................... 1-10
Starting system......................................................................... 1-11
Fuel system technical data
Fuel system .............................................................................. 1-12
Power unit technical data
Power unit ................................................................................ 1-13
Manual starter .......................................................................... 1-14
Cylinder head assembly ........................................................... 1-14
Crankcase assembly ................................................................ 1-17
Lower unit technical data
Lower unit assembly................................................................. 1-19
Bracket unit technical data
PTT system .............................................................................. 1-20
Specification
............................................................................. 1-1
.................................................................................... 1-3
........................................................... 1-7
....................................................... 1-13
....................................................... 1-19
.................................................... 1-12
.................................................... 1-20