29
screw. This screw will also richen and lean your engine more on the bottom and
mid-range. In warmer conditions, turn the screw in. In colder conditions, turn the
screw out. Be sure to keep the carburetor very clean and make sure you don't
have water or dirt in the carburetor bowl. Use automotive carburetor cleaner or
WD-40 to clean the carburetor inside and out.
STOCK CARBURETOR SETTINGS
The 2003 PW3 stock carburetor settings from the factory are:
•
42 pilot jet
•
82 main jet
Cleaning the carburetor:
Clean the carburetor in a well-ventilated area, and take care that there is no
spark or flame anywhere near the working area; this includes any appliance with
a pilot light. Because of the danger of highly flammable liquids, do not use
gasoline or low flash-point solvent to clean the carburetor.
1. Make sure the fuel is shut off.
2. Remove the carburetor.
3. Drain the fuel in the carburetor.
4. Disassemble the carburetor.
CAUTION:
Do
not
use compressed air on an assembled carburetor. Or the pressure may
deform the float. Do not use a strong carburetor cleaning solution, which could
attack the parts of the carburetor; instead, use a mild high cleaning solution safe
for plastic parts.
5. Immerse all the metal parts in a carburetor cleaning solution.
6. Rinse the parts in water.
7. After the parts are cleaned, dry them with compressed air.
8. Blow out the fuel passages with compressed air.
9. Assemble the carburetor
10. Install the carburetor onto the motorcycle.
NOTE:
The
three most common problems
with this
carburetor are (figure 18):
1. Installing the
carburetor top backwards
.
2. The carburetor
slide
indexing
pin falling
out
.
3. Either side
vent elbow falling out
.
Figure 18
Proper carburetor top
installation and location of rectangular
slide indexing pin and one of the elbows
that has been known to fall out.
