Lotus TURBO ESPRIT Service Manual page 343

SECTION LA
Page
5
Ptogress ion
On
first opening the throttle valves
(12),
that is when passing from idle to full
throttle, mixture arrives to barrels
(1
1)
'
also through progression holes
(32)
.
Acceleration
O n
opening of throttle valves (12), lever (39) attached to spindle (38), by
means of the rod (40) and the spring (41) pushes the pump lever (43) which
acts directly on the diaphragm
(44)
held out by the spring
(45).
Moving pf the diaphragm
(44)
causes delivery of fuel to the main barrels (1
1)
through the respective valves
(36)
and jets (37).
On
closing of throttle valves
(1
2), diaphmgm (44) returns to the original
pas ition pushed by the spring (45) and draws fresh fuel from the fuel well
(33) through the valve
(35).