Carburetor Heater - Honda CH250 Elite 1986 Service Manual

CARBURETOR
AIR CUT-OfF VALVE
Air cut-off valve actuates by intake manifold vacuum.
When the vacuum increases, air cut-off valve shuts off auxilia-
ry slow air passage.
It allows fuel air mixture to become rich, and prevents after-
burn.
TECHNICAL fEATURES
CARBURETOR HEATER
(2) AIR CUT-OFF VALVE
Engine coolant flows through heater and warm up the carbure-
tor.
This improvescarburetion and prevents icing.
As the coolant temperature increase, thermostat shuts off the
passage to the carburetor heater.
(5) HEATER
(4) PILOT SCREW
(1) AUTO BYSTARTER
~'l'CC~~::¢:;C:RFI-
(2) AIR VENT TUBE FITTING
-+"it+-
(3) HETER FITTINGS
18-5