Assembling The Carburetor - Yamaha 250GETO Service Manual

FUEL

Assembling the carburetor

1. Install the gaskets 1, plugs 2, pilot air
jets 3, and air bleed plugs 4 onto the
carburetor body.
2
1
2. Install a new gasket, and then install the
needle valves, floats and float pins onto
the carburetor body. Check the float for
smooth operation, after install them.
3. Install the main jets 5 and pilot jets 6
onto the float chamber.
6
5
4. Install the gaskets 7, plugs 8, gaskets
9 and plugs 0 onto the float chamber
q.
5. Install the float chamber q onto the car-
buretor body and install the gaskets w
and plugs e onto the carburetor body.
8
7
9
0
w
e
4-11
Fuel system
2
1
3
3
4
6G440100
5
6G440110
8
7
0
9
q
6G440130
6. Install the pilot screw, and then turn in
until it is lightly seated, and then turn out
by the specified number of turns.
NOTE:
When disassemble the carburetor, be sure to
set the pilot screw by the specified times.
Pilot screw turns out:
7/8 : [SU, SM, SL]*
1 : [PU]
3/4 : [PM]
1 3/8 : [PL]
*PU : Port upper
PM : Port middle
PL : Port lower
SU : Starboard upper
SM : Starboard middle
SL : Starboard lower
7. Install the carburetor assembly.
6S35H11