5A.5
Section 5A
LPG Fuel Systems
5A
4. Inspect the overall condition of the fuel
enrichment hose attached to the carburetor. It
must be free of cracks, deterioration, and damage.
Disconnect the fuel enrichment hose from the
carburetor fittings to clean or check condition as
required. See Figure 5A-6. Replace with a new
Kohler high pressure hose (LP rated) if the
condition is questionable in any way. Secure new
hose using new clamps.
Figure 5A-6.
5. Clean all parts as required, use a good carburetor
cleaner, following the manufacturer's
instructions. Blow clean, compressed air through
all the passages.
Do not
poke or probe into the
load block assembly as damage can be done,
resulting in serious operational problems. See
Figure 5A-7.
Figure 5A-7.
Nikki Carburetor
1. Turn off fuel supply at tank.
2. Remove the air cleaner, breather hose, fuel line,
vacuum hose, choke, and throttle linkages.
Remove the nuts, carburetor, and gaskets from
the engine. Discard the gaskets.
3. Remove the fuel transfer chamber cover by
removing the three screws. See Figure 5A-3.
Carefully remove the cover and gasket. Discard
the gasket.
4. The main jet is fixed and nonadjustable, but may
be accessed for cleaning by removing the rear
plug and sealing washer. Discard the washer.
5. In order to clean the off-idle transfer passages
and carburetor thoroughly, use a good carburetor
cleaner and follow the manufacturer's
instructions. Blow clean, compressed air through
the passages and make sure all are open before
reassembling.
Do not
use wire or metal objects to
clean passages or carburetor body.
LPG Carburetor - Inspection
1. Inspect the carburetor body and removable
venturi (Impco carburetor) for cracks, holes, and
other wear or damage.
2. Check the choke shaft (Nikki carburetor only)
and the throttle shaft for wear and free
movement.
NOTE:
Do not
attempt to disassemble or
remove either shaft from the carburetor
body, including the mounted clamp
brackets on Impco style carburetors. The
screws, attaching the choke and throttle
plate to their respective shafts are staked
or bonded to prevent loosening. The
plate(s) and shaft(s) are not available
separately. If detrimental wear or
damage is found in any of the parts, the
carburetor should be replaced.
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