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Fuel and exhaust systems 4.1 1
12.4a Twistgrip housing screws are on the
front of the assembly
12.5b
. . .
and withdraw the cable from the
housing
6 Feed the cable back towards the battery
location, noting its route and how it is retained
by the guides on the frame.
7 Remove the carburettor top (see Section 9)
and detach the cable from the throttle slide
(see Section 10).
8 Withdraw the cable from the machine,
noting the correct routing.
Installation
9 lnstallation is the reverse of removal, noting
the following:
Make sure the cable is correctly routed and
secured. It must not interfere with any other
component and should not be kinked or bent
sharply.
Lubricate the throttle cable nipple with
multi-purpose grease before connecting it to
the twistgrip.
Check the throttle cable adjustment (see
Chapter 1).
Start the engine and check that the idle
speed does not rise as the handlebars are
turned. If it does, the cable is routed incorrectly.
Correct the problem before riding the machine.
Models fitted with a cable
operated oil pump
Removal
10 The throttle cable consists of three
sections (see illustration 10.6 in Chapter 1)
-
the main cable from the throttle twistgrip goes
into a splitter located behind the kick panel,
with separate cables going from the splitter to
the
carburettor
and
oil
pump
(see
illustration). Individual cables are not
12.4b Slide the twistgrip off the handlebar
12.10 Cable splitter is clipped to the frame
behind the kick panel
available, so if a cable problem is diagnosed,
the complete cable assembly will have to be
replaced with a new one. Before removing the
cables, make a careful note of their routing to
ensure correct installation.
11 To access the cable assembly, remove
the upper or front handlebar cover, front
panel, floor panel and storage compartment
(see Chapter 7). If required, remove the
exhaust system (see Section 15).
12 On liquid-cooled models, undo the
radiator mounting bolts and displace the
radiator and coolant reservoir assembly;
secure it to the machine with cable ties while
removing and installing the throttle cable (see
Chapter 3).
13 Release the cable from the grommet
where it passes through the lower handlebar
cover, then remove the twistgrip housing and
release the cable (see Steps 3 to 6).
14 Unscrew the locknut on the lower end of
the oil pump cable adjuster, detach the cable
nipple from the pump pulley and withdraw the
cable from its bracket (see illustration).
15 Remove the carburettor top (see Section
9) and detach the cable from the throttle slide
(see Section 10).
16 Withdraw the cable from the machine,
noting the correct routing.
lnstallation
17 lnstallation is the reverse of removal,
noting the following:
Make sure the cables are correctly routed
and secured. They must not interfere with any
other component and should not be kinked or
bent sharply.
12.5a Release the cable nipple from the
twistgrip..
.
12.14 Unscrew the locknut (arrowed) to
release cable from the bracket
Lubricate the throttle cable nipple with
multi-purpose grease before connecting it to
the twistgrip.
Check the throttle cable adjustment and the
oil pump setting (see Chapter 1, Sections 10
and 13).
Start the engine and check that the idle
speed does not rise as the handlebars are
turned. If it does, a cable is routed incorrectly.
Correct the problem before riding the scooter.
13 Reed valve
-
removal, inspection
and installation
Removal
1 Remove the carburettor (see Section 9).
2 Detach the fuel tap vacuum hose from the
union on the inlet manifold (see illustration).
13.2 Detach the vacuum hose from the
union (arrowed) and unscrew the mounting
bolts
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