Johnson J10RLSUR, Service Manual

Page: 114 / 229

112
FUEL SYSTEM
CARBURETOR SERVICE
gauge up, next to float. Top of float should be
between notches on gauge.
Use notch that is indicated "9.9 & 15 HP." Be cer-
tain gauge is not holding down the float.
If float level is not between the notches of gauge,
lightly bend metal float arm to adjust level. Be
careful not to force float needle valve into seat.
Check for correct float drop setting. This setting
affects the full opening of the inlet needle and is
critical to correct operation of the carburetor.
With carburetor body in normal running position,
the float must drop open from base of carburetor
body to setting shown.
Bend the float lever tab to adjust float drop.
Install the float chamber and a new gasket.
Tighten the screws to a torque of 8 to 10 in. lbs.
(0.8 to 1.2 N·m), following sequence embossed on
float chamber.
Install the carburetor body cover and gasket.
Tighten the screws to a torque of 8 to 10 in. lbs.
(0.8 to 1.2 N·m), following sequence embossed on
cover.
HR Models Only
Install the low-speed needle and spring. Turn nee-
dle carefully until it lightly contacts the seat; then
back it off three turns.
Float Gauge 93328
Float Drop Setting – 9.9/15
1 in. to 1 3/8 in. (25 to 35 mm)
1. Base of carburetor body
2. Float lever tab
3. Float drop dimension
803406
2 1
3
1. Float chamber and gasket
2. Carburetor body cover and gasket
3. Low-speed needle and spring (10RH models only)
002535
2
3
1