Kohler KG2204 Service page 86

the two components apart. Use caution not to
damage the O-rings.
Remove four socket head cap screws securing
air-fuel mixer to the air-fuel mixer adapter and
then remove the adapter and the mixer gasket.
Place tape or a clean cloth over the intake to
prevent items from falling inside the engine.
5.1.2. Throttle Body and Air-Fuel Mixer
Installation, KG2204
Install the throttle body adapter plate to the upper
intake manifold. Secure with four socket head cap
screws.
Position the mixer gasket between the air-fuel
mixer adapter and the air-fuel mixer.
Assemble the air-fuel mixer adapter to the air-fuel
mixer valve. Secure with four socket head cap
screws.
Use lubricant on the O-rings. Assemble the
throttle body into the air-fuel mixer valve adapter.
Use caution not to damage O-rings.
Position the throttle body gasket between the
throttle body adapter and the throttle body.
Install the air-fuel mixer valve and throttle body
assembly to the upper intake manifold as a unit.
Secure with four socket head cap screws.
Attach the air intake hose and fuel intake hoses to
the mixer.
Install wire harness to throttle position sensor.
Reconnect the battery.
If the engine is used as part of a generator set,
re-apply the AC power supply to the generator set
by closing the upstream circuit breaker.
Turn on the fuel supply.
Start the engine and check for leaks with the
engine running.
Turn off the engine.
86 Installation and Removal Procedures
5.1.3. Throttle Body Removal, KG2204T
1
2
3
1. Disconnect wire harness.
2. Remove clamp and hose.
3. Remove 4 bolts to remove throttle body
with gasket.
4. Remove 4 bolts to remove adaptor plate.
Figure 5-2 Throttle Body Assembly, KG2204T
Make sure that the engine is off.
If the engine is used as part of a generator set,
disconnect AC power to the generator set by
opening the upstream circuit breaker.
Disconnect the engine starting battery, negative
(-) lead first.
Remove wire harness from the throttle body.
Remove the air hose from the throttle body.
Remove the four socket head cap screws
securing the throttle body assembly to the upper
intake manifold. Remove the throttle body from
the upper intake manifold.
Remove the four screws holding the throttle body
adapter plate to the intake manifold and then remove
the adapter from the upper intake manifold.
Place tape or a clean cloth over the intake to
prevent items from falling inside the engine.
4
TP-6903 5/16a