Adjustment - Yamaha YT175J 1982 Service Manual

b. If the float level is not within the
specified range, check the valve seat
and needle valve. And replace any
damaged part.
If any part is in good condition but float
level is not within the specified range,
correct float level by bending the float
arm tang slightly.
c. Adjustment
Check the float valve and valve seat for
wear before adjustment.
Make the adjustment by bending the
tang on the float arm.
2. Jet needle
If it is necessary to alter the mid-range
air/fuel mixture characteristics of the
machine, the jet needle position may be
changed. Move the jet needle up for a
leaner condition or toward the bottom
position for a richer condition.
Jet needle type: 4K4
Clip position: No.3 Groove
1st
2nd
3rd
4th
5th
4-3