12
17
18
GREY
CAPPED FIXED
JET
19
MIXING WELL
CAST BUT NOT
MACHINED
20
IDLE JET
CAST BUT NOT
MACHINED
21
SERIES 6 CARBURETORS 4-CYCLE
Series 6 carburetors are used on 2 and 4-cycle engines.
They have a larger venturi than the dual system carburetor
and use a simple fixed idle system. Series 6 carburetors
used on both vertical and horizontal applications are
nonadjustable. The 4 cycle version pictured has a stepped
primer bulb. (diag. 17).
SERIES 8
The Series 8 carburetor has both a fixed main and idle
circuit. The fixed idle system uses a restricted jet that
meters the fuel. The idle restrictor jet will be capped to
prevent access unless removed. The fixed main jet is part
of the bowl nut. A ball plug is visible from the bottom, which
seals the metering passage. This carburetor also has a
serviceable main nozzle emulsion tube. It also has a
stepped primer bulb to assist in starting. (diag. 18)
SERIES 9
The Series 9 carburetor uses the same body as the Series
8 but has a simple fixed idle system, identical to the one
used on the Series 6 carburetor. It has the idle discharge
port located at the 7 o'clock position on the throttle end of
the carburetor. Identify this carburetor by the stepped primer
bulb, the presence of a non-drilled idle mixing well and a
serviceable main nozzle emulsion tube. (diag. 19)
SERIES 10 (EMISSION)
The Series 10 carburetor is identical to the Series 8
carburetor with the addition of a choke to assist in cold
weather starts. It also has a fixed idle and main. The idle
restrictor jet is capped to prevent access unless the cap is
removed. The fixed main jet is part of the bowl nut. A ball
plug is visible from the bottom, which seals the metering
passage. This carburetor also has a serviceable main nozzle
emulsion tube and a stepped primer bulb to assist in
starting. (diag. 20)
SERIES 11
The Series 11 carburetor is used on most LEV model
engines. This carburetor contains a patented auto-
enrichment system for improved starting and performance
of a cold engine. The system contains a fuel well that is
filled as part of the priming procedure and emptied as the
engine runs in the first minute. This added fuel provides
smooth operation of today’s emission grade engines. The
carburetor can be identified externally by the BLACK
colored restrictor cap (diag. 21). Internally the standard
Series 11 is identified by the plugged passage as shown.
BLACK CAP
HOLE PLUGGED
