Honda CX500 1978 Shop Manual page 27

a
HONDA
INSPECTION AND ADJUSTMENT
CARBURETOR SYNCHRONIZATION
NOTE
1
This adjustment is performed with engine
1
normal operating temperature,
transmission in neutral, and vehicle on
MUST BE WITHIN 40mm (1.6 in) Hg OF EACH OTHER
center stand.
Remove the plugs from the carburetor spacers
and install adapters.
Connect the vacuum gauges.
Start the engine and adjust the idle speed t o
1.100t l 0 0 r p m .
The difference of vacuum between cylinders
should be within 40 mm (1.6 in)
Hg.
ADJUSTMENT
Prepare a longer fuel tube and connect it t o the
fuel tank and carburetor.
Position the tank higher than normal.
Loosen adjusting screw lock nut.
Balance the vacuum between cylinders t o with-
in 40 mm (1.6 in) Hg of each other, by turning
the adjusting screw.
Hold adjusting screw, and tighten the lock nut.
Recheck the synchronization and idle speed.
Reinstall the fuel tank and seat.
JUSTING SCREW
Date of Issue: January, 1978
OHONDA MOTOR CO., LTD.
3-7