Filter
Top Products
4-22
E
EJU00573
CARBURETOR ADJUSTMENT
The carburetor is a vital part of the engine
and requires very sophisticated adjust-
ment. Most adjusting should be left to a
Yamaha Water Vehicle dealer who has
the professional knowledge and experi-
ence to do so. However, the following
point may be serviced by the owner as
part of his usual maintenance routine.
cC
The carburetor was set at the Yamaha
factory after many tests. If the settings
are disturbed without having technical
knowledge, poor engine performance
and damage may result.
EJU00577
Trolling speed
Place the water vehicle afloat. Start the
engine and warm it up for one or two
minutes. Using a diagnostic tachometer
or, if necessary, the tachometer in the
multifunction meter, adjust the engine
speed to specification. Turn the throttle
stop screw clockwise to increase engine
speed or counterclockwise to decrease
engine speed.
1 Throttle stop screw
NOTE:
8 When possible, use a diagnostic
tachometer for this procedure.
8 When using the tachometer in the mul-
tifunction meter, set engine speed as
the meter indicates specified trolling
speed.
Trolling speed: 1,250~1,350 r/min
GU0-117
q
MODE
WARNING
mph
2
1
0
3
4
5
6
7
8
1000
r/min
GP7-118