TOHATSU NB-1000 Service Manual page 74

Disassembly
5 to 18 models are equipped with integral fuel pump.
To ensure proper cleaning of the carburetor, remove
and service the fuel pump at this time. Refer to Fuel
Pump, this section.
1. Remove drain screw (1) from float chamber (2) and allow
4
to drain.
Use the following precautions during carburetor
disassembly:
• Use correct size screwdrivers to avoid damaging
the carburetor jets.
• DO NOT disassemble the choke or throttle
butterfly valve assembly components. They are
NOT serviceable.
• Throttle stop screw spring has higher tension
than pilot adjust screw spring. DO NOT
interchange the springs.
4
2. Remove float chamber (2).
3. Remove float valve assembly (3). lf serviceable, remove needle
5
seat (4).
4. Remove all jets (5), plugs (6) and nozzles (7) from the bottom
6
of the carburetor.
5. From the top of the carburetor, remove the cover and gasket
7
(8) if equipped.
6. Remove the pilot adjust (9) and throttle stop screw (10).
7
1-/ 2-Cylinder
T1140
NOTE
CAUTION
FUEL SYSTEM
T1141
T1142
T1143
3-27