17
CARBURETOR
FUEL
1
NOTE:
SERVICE POINTS
High and low speed screws adjustment
1.
Adjust:
High speed screw
Low speed screw
Adjustment steps:
Screw in the high speed screw
1
or lower
speed screw
2
until it is lightly seated.
Back out by the specified number of turns.
High speed screw:
5 / 8 (#1), 1-1 / 8 (#2)
±
1 / 4
turns out
Low speed screw:
5 / 8 (#1)
±
1 / 4 turns out
Throttle valve synchronization inspection
and adjustment
1.
Check:
Throttle valve synchronization
Out of specification
Adjust.
Checking steps:
While turning the throttle lever, check the
opening of all throttle valves.
2.
Adjust:
Throttle valve synchronization
Adjustment steps:
Turn out the idle adjust screws
1
until their
tips are apart from the throttle lever
2
.
Record the set position of the idle adjust
screw.
Check that the throttle valve “R”
3
is fully
closed.
Turn the synchronization screw
4
in or out
until the throttle valve “F”
5
is fully closed.
Turn in the idle adjust screws to the set
position.
