2-14
2
Acceleration pump
The acceleration pump increase the amount of the fuel that is sent to the combustion chambers dur-
ing acceleration. When the throttle grip or remote control lever is operated, the throttle valve opens
and the acceleration pump rod
1
is operated by the force of a spring
2
.
The acceleration pump is operated only when the throttle lever moves from the fully closed position
to the half-open position. The acceleration pump is not operated once the throttle lever moves past
the half-open position.
È
Air
É
Fuel
Ê
Air and fuel mixture
Ë
Before acceleration pump operates (throttle valve fully closed position)
Ì
When acceleration pump operation finishes (throttle valve half-open position)
Í
After acceleration pump operation finished (throttle valve fully open position)
TIP:
When restarting a warm engine, do not open and close the throttle valve repeatedly before starting
the engine. When the throttle valve is opened, the spark plugs will become wet from the fuel that is
sent from the acceleration pump, making it difficult to start the engine.
To restart a warm engine, see “Starting the engine (manual starter model)” (10-8).
Ë
È
É
Ê
Ì
Í
1
1
2
Содержание Kingfish 25
Страница 1: ...YAMAHA MOTOR CO LTD F4A F4 Goldfish 4 Kingfish 25 SERVICE MANUAL...
Страница 4: ......
Страница 20: ...0 15 GEN INFO General information MEMO...
Страница 45: ...1 25 SPEC Specification MEMO...
Страница 65: ...2 19 TECH FEA Technical features and description MEMO...
Страница 81: ...3 17 RIG GING Rigging information MEMO...
Страница 215: ...7 67 POWR Power unit MEMO...
Страница 229: ...LOWR Lower unit 8 11 0 A...
Страница 242: ...8 24 8 Shimming Shim location T1 T2 T3 T3 A3 B3 42 5 T1 T2 24 0 24 0 B2 A1 A2 B1 Drive shaft and lower case Shimming...
Страница 259: ...LOWR Lower unit 8 41 5 Install new O rings C and D Ball bearing attachment B 90890 06633 A G B C D...
Страница 392: ...A Appendix Wiring diagram A 1 How to use the wiring diagram A 1...
Страница 394: ......
Страница 395: ......