FUEL SYSTEM
Carburetor
2001 Pioneer 900 Gasoline Vehicle Maintenance and Service Manual Page 14-7
14
5. Remove the carburetor fuel bowl retaining screw and washer (12), then remove the fuel bowl (10) and
clean it with a nonflammable solvent (Figure 14-7, Page 14-7). See following NOTE.
NOTE: Make sure the fuel bowl gasket (9) remains properly seated in the carburetor body when the fuel
bowl is removed (Figure 14-7, Page 14-7).
During normal operation, the fuel bowl retains the float pivot pin (6). Make sure that the float pivot pin
does not fall out of the carburetor body after the fuel bowl is removed.
6. Remove the main jet (8) from the carburetor body and discard it (Figure 14-7, Page 14-7).
NOTE: Make sure the fuel nozzle (7) does not fall out of the carburetor body after removal of the main jet.
This is best accomplished by positioning the carburetor upside down during main jet removal (Figure
14-7, Page 14-7).
7. Select the proper size main jet. See chart on page 14-5. Check the size designation on the jet to make
sure it is the correct part.
8. Install the new main jet and tighten it to 12 in-lb (1.4 N·m). See following CAUTION and NOTE.
Figure 14-7 Changing the Main Jet
Drain carburetor over
a catch basin by turning
bowl drain screw (11)
counterclockwise
2 to 3 turns.
STEPS 2 AND 3
STEP 4
A
Mark carburetor
and corresponding
position of fuel bowl.
B
Check for
coil located in
groove above
both ears.
Check for
spring seated
in recess of
float body.
If spring looks
like this...
or this...
then adjust
spring to look
like this by...
C
D
holding float firmly...and...
rotating valve counterclockwise
to seat spring in seat of float bowl.
CAUTION: Do not remove valve/spring
from float. To do so will damage spring.
1
2
3
4
5
7
8
6
9
11
12
10
