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ManualsBrandsYamaha ManualsAutomotiveF60
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GEN
INFO
General information
11
69W3D1X
Technical tips
1
Carburetor
Power nozzle
The power nozzle is activated when the engine is operating at high speeds. To reduce the fuel con-
sumption rate and the pollution of the exhaust gases, the carburetors of the F60 are set lean. There-
fore, the air-fuel mixture becomes lean at high engine speeds, when greater output is needed. The
power nozzle supplies a richer fuel mixture at high engine speed to realize the optimal air-fuel ratio
to produce output.
1
Throttle valve
2
Power nozzle
È
Air
É
Air-fuel mixture
Ê
Fuel
:
:
:
S69W1300