Subaru 1600 Service Manual page 144

4) Accelerating Pump System
FUEL
Fig. 4-53 Fuel flow in accelerating pump system
5) Choke System
Vacuum diaphragm
Bimetal
Vacuum piston
Vacuum Hose
Fig. 4·55 Choke system
FUEL SYSTEM
Pump nozzle
Anti·siphon passage
Cam follower
A8-392
fig. 4·54 Accelerating pump system
Bimetal housing
set at one notch
to rich side.
(10 degrees/notch I
Choke valve
Modulator spring
A8-394
Pump bleed
Check ball (Inlet)
Pump chamber
A8-393