Vacuum Chamber - Honda Metropolitan CHF50 Service Manual

FUEL SYSTEM
The vacuum
chamber cover is
under spring
pressure.
VACUUM CHAMBER
Remove the screws and clamp while holding the
vacuum chamber cover.
CLUMP SCREWS
CHAMBER COVER
Remove the vacuum chamber cover, compression
spring and diaphragm/vacuum piston.
Check the piston for smooth operation up and down
in the carburetor body.
SPRING
| DIAPHRAGM/VACUUM PISTON
Be careful not to Turn the needle holder counterclockwise while
damage the dia- pressing it in and remove the holder flanges from
phragm. the piston grooves.
Remove the needle holder, spring and jet needle
from the vacuum piston.
DIAPHRAGM/
VACUUM PISTON
Check the followings:
- Jet needle for stepped wear
- Vacuum piston for wear or damage
- Diaphragm for pin holes, deterioration or dam-
age
NEEDLE HOLDER
DIAPHRAGM/VACUUM PISTON
JET NEEDLE
SPRING
DIAPHRAGM NEEDLE HOLDER
5-11