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4.6 Fuel and exhaust systems
9.5 Detach the oil hose from the
carburettor.
. .
6 Before disassembling the carburettor, make
sure you have all necessary gaskets, some
carburettor cleaner, a supply of clean rags,
some means of blowing out the carburettor
passages and a clean place to work.
9 Carburettor
-
removal and installation
%
8
Warning: Refer to the pnecautions
given in Section 1 before starting
Removal
1 Remove the left-hand side panel and belly
panel, and the storage compartment (see
Chapter 7).
2 Remove the air filter housing (see Section 6).
3 Disconnect the battery negative (-ve) lead
(see Chapter 9) then trace the wiring from the
automatic choke unit and disconnect it at the
connector (see Section 7). Free the wiring
from any clips or ties and feed it back to the
carburettor.
4 On liquid-cooled models, undo the screw
securing the carburettor heater union to the
carburettor and displace the heater and
heater hoses (see Section 14).
5 Release the clip securing the oil hose to the
9.6
. .
.then detach the fuel hose
9.7 Loosen the drain screw and drain off
any residual fuel
9.8a Unscrew the top of the Gurtner
carburettor
carburettor and detach the hose (see
illustration). Clamp the hose to minimise oil loss
and wrap a clean plastic bag around the end of
the hose to prevent dirt entering the system.
6 Detach the fuel hose from the carburettor
(see illustration). Note: There will be a small
amount of residual fuel in the hose but fuel
should not leak from the hose once this has
drained. I f fuel continues to leak from the
hose, check the operation of the fuel tap (see
Section 2).
7 Position a suitable container underneath
the carburettor, then loosen the drain screw
and drain any residual fuel from the float
chamber (see illustration).
9.9a Gurtner carburettor is retained by two bolts
9.8b Undo the retaining screw to remove
the top of the Dell'Orto carburettor
8 On a Gurtner carburettor, unscrew the
carburettor top and withdraw the throttle slide
and needle (see illustration). On a Dell'Orto
carburettor, undo the screw retaining the
carburettor top, then remove the top and
withdraw the throttle slide and needle (see
illustration). Secure the throttle cable where
the slide and needle will not be damaged. To
detach the slide and needle from the cable
see Section 9.
9 Either loosen the clip or undo the bolts
securing the carburettor to the inlet manifold
on the engine and remove the carburettor
(see illustrations). Note the position of the
manifold gasket, where fitted, then discard it
9.9b Dell'Orto carburettor is retained by a clip (A). Note the
locator for the mounting sleeve (B)
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