Honda CB350 Repair Manual page 107

102 FUEL SYSTEM
e. Turn the fuel on and check for
leaks. Start the engine and check for air
leaks around the intake manifold and
the air cleaner.
Disassembly
1. If disassembly of the throttle slide
components is desired, compress the re—
turn spring against the carburetor cap,
disengage the cable from the slide, take
out the spring clip, needle and clip.
2. With the carburetor upside down,
flip up the retainer and separate the float
bowl from the carburetor body. Do so
carefully to avoid damage to the float.
3. Push out the float pivot pin with a
small drift, and remove the float. Remove
the float needle from its seat. Unscrew
the seat itself.
4. Using a small screwdriver, remove
the main jet, pilot jet, pilot air screw, and
throttle stop screw.
5. Unscrew the main jet holder using
the correct size wrench. The needle jet
can now be removed from above the
main jet holder.
Inspection
1. Clean all metal parts in carburetor
cleaner or a suitable solvent, and blow
dry.
2. Use air pressure to blow out the air
and fuel passages in the carburetor body
and the fuel passages in the jets.
CAUTION: Never attempt to clear
blocked jet passages by inserting any—
thing into the jet bore. Clear by blow—
ing through with air pressure only.
3. Inspect the carburetor body for any
vibration or stress cracks.
4. Check the condition of the throttle
slide. The slide should be free of score
or wear marks. Minor scoring can be
removed with fine emery cloth. The
slide should be a light slip—fit in the car—
buretor bore. Note any binding or exces—
sive play as the slide is moved in the
bore. Binding may be caused by a
warped carburetor body; excessive play
by a wornslide or bore. Check the bore for
vertical score marks caused by throttle
slide action. Serious scuffing of either
slide or body may be due to a sticking
slide: a condition which must be reme—
died.
The slide must be able to move freely
in the carburetor body, but if it is too
$L350 carburetor
1. Rubber cap 18. Air screw
2. Cable adjuster 19. Throttle stop screw spring
3. Locknut 20. Throttle stop screw
4. Cap 21. O—ring
5. Top 22. T—connector
6. Rubber gasket 23. Low speed jet
7. Slide return spring 24. Main jet tube
8. Needle retaining clip 25. Main jet holder
9. C—clip 26. Main jet
10. Needle 27. Flat washer
11. Slide 28. Needle and seat assembly
12. Cofter pin 29. Float
13. Float washer 30. Float hinge pin
14. Choke linkage rod 31. Float bowl gasket
15. Plug 32. Flat washer
16. Flat washer 33. Drain plug
17. Air screw spring 34. Float bowl clip
loose, it should be replaced. A throttle
slide should last at least four years under
normal running conditions. The slide
will wear out more quickly if the ma—
chine is used in extremely dusty condi—
tions, or if there is a leak in the filtration
system.
5. Inspect the needle jet and the nee—
dle. The needle must be free ofnicks or
score marks along its tapered portion.