Kohler KT19 series II User Manual

SECTION 4
FUEL
SYSTEM AND GOVERNOR
FUEL PUMP
These engines have a mounting pad and provision
on the crankcase for a mechanically operated fuel
pump. On applications with gravity feed systems,
the pad is covered and the fuel pump is not used.
Fuel Pump Operation
The mechanical pump operates off a cam on the
camshaft. The fuel pump lever rides on the cam
transmitting a pumping action to a diaphragm
within the pump body as illustrated in Figure 4-9.
Figure 4-9. Fuel Pump Function
OPTIONAL AUTOMATIC CHOKE AND
SHUTDOWN CONTROL
Some KT1 7 engines on generator applications
may be equipped with an optional Thermo-Electric
Automatic Choke, and with a Fuel Shutdown
Control.
Automatic Choke Function
The choke is an integral part of the carburetor. The
choke will close automatically from ambient air.
Upon starting, the engine vacuum will partially
open the choke. The bi-metal spring in the choke is
electrically connected to the ignition coil and the
current flowing through the bi-metal spring will
heat to a point that the choke will open fully.
Automatic Choke Adjustment
The choke unit (Figure 4-10) is set at the factory for
average conditions. To readjust for local condi-
tions, loosen the cover retaining screws and shift
the cover in clockwise direction for richer setting or
counterclockwise direction for leaner setting.
Tighten the cover retainer screws.
24
Fuel Pump Check
WARNING:
Before performing this check be sure
to wipe up any spilled fuel and make
sure no sources of heat, flame or sparks
are near, as these can cause gasoline
fumes to explode. Disconnect and
ground spark plug leads to eliminate
electrical spark.
1. Remove the fuel line at the carburetor and crank
the engine. If no fuel comes out offuelline check
the fuel flow into pump (Step 2).
2. Remove the fuel line at the inlet side of the fuel
pump and hold the line lower than the gas tank.
If fuel flows freely from the fuel line the pump is
faulty and should be replaced. Fuel pumps are
not serviceable-replacement kits are available
from your Kohler parts supplier.
See Fuel Pump installation instructions in Sec-
tion 8.
Figure 4-10. Automatic Choke.

Kohler KT19 series II Specifications

General

Brand	Kohler
Model	KT19 series II
Category	Engine
Language	English