Evinrude 4906B 4HP 1969 Owner's Manual page 123

4-32 FUEL
GOOD
Cross-section drmving
needle and seat (left), with one badly worn (right).
burrs which might cause a leak.
float for deterioration.
the float spring has not been stretched.
any part of the float is damaged, the unit
must be replaced.
needle contacting surface and replace the
float if this surface has a groove worn in it.
Inspect the tapered section of the idle
and high-speed adjusting needles and replace
any that have developed a groove.
ELECTRIC CHOKE
ASSEMBLY
of a
Exploded view Type II carburetor
WORN
to of a
allow comparison
Check the
Check to be sure
Check the float arm
installed on larger horsepower engines equipped with the all-electric
WORN
GOOD
Comparison
new
top needle is unfit
If a high-speed orifice is installed on the
carburetor
If for cleanliness.
of a worn and new needle valve.
for
further service.
being serviced, check the orifice
The orifice has a stamped
The
choke.