TOHATSU MFS 6C, Service Manual, Page: 73 / 260

4
4-9 4st 4/5/6 2011
2) Off-Idle Passage
When throttle valve is turned to a position over bypass port, the bypass port is exposed to low pressure existing in the back
of throttle valve. The low pressure causes the fuel to be ejected from bypass port and idle port.
c
k
b
j
l l
l m
f
g
e
a
d
h h
i
å
∫
a - Air intake
b - Air vent inlet
c - Main air jet
d - Pilot air jet
e - Bypass port
f - Pilot outlet
g - Throttle valve
h - Fuel inlet
i - Main jet
j - Pilot jet
k - Choke valve
l - Main nozzle
m - Air bleed
å
Air
∫
Air-fuel mixture
<Over view>
<Side view>
MFS4-5-6̲E̲ch04̲110422.qxd 11.4.22 5:48 PM ページ 9