Yamaha YZ85LW Fahrer- Und Wartungshandbuch Seite 468

EC71R000
Pilot jet adjustment
The air-fuel mixture can basically be adjusted
by the pilot air screw from full closed to 1/2
throttle.
If the pilot air screw is not enough for this
adjustment, the pilot jet 1 is changed.
A larger size jet results in a richer mixture at
low speeds, and a smaller size in a leaner mix-
5PA70070
ture.
Standard pilot jet
Jet needle adjustment
The richness of air-fuel mixture with 1/4 ~ 3/4
throttle can be set by changing the jet needle
1.
A smaller diameter jet needle results in a richer
mixture at middle speeds, and a larger diame-
ter in a leaner mixture.
Standard jet needle
5PA70080
7 - 4
T U N
SETTING
#45
NBKF