Honda Metropolitan CHF50 Service Manual page 101

FUEL SYSTEM
VACUUM CHAMBER
Install the jet needle, spring into the vacuum piston.
DIAPHRAGM/
VACUUM PISTON
NEEDLE HOLDER
Press the needle holder into the vacuum piston and DIAPHRAGM/
turn the needle holder clockwise until you feel a VACUUM PISTON
click.
Be careful not to Install the diaphragm/vacuum piston in the carbure-
damage the jet tor body, aligning the diaphragm tab with the
needle, groove in the carburetor body.
Hold the vacuum piston almost full open so the dia-
phragm is not pinched by the chamber cover.
Be careful not to
pinch the Install the chamber cover with the spring, being
diaphragm, and to careful not to damage the spring.
keep the spring
straight when
compressing the
spring.
Install the clamp and screws.
Tighten the screws securely.
TORQUE: 2.1 N m (0.21 kgf m, 1.5 Ibf ft)
NEEDLE HOLDER
SPRING CHAMBER COVER
DIAPHRAGM/
| VACUUM PISTON
CLAMP SCREWS
CHAMBER COVER
5-15