Manifolds, exhaust and emission control systems
All models utilise a light alloy inlet manifold which on carburettor models is coolant heated to improve the atomisation of the fuel/air mixture.
The exhaust manifold is of cast iron construction and incorporates a heated air box as part of the air inlet system on carburettor models.
See also:
Ignition system component check (Every 24 000 miles (40 000 km) or 2 years)
1 Before disturbing any part of the ignition
system, disconnect the battery negative lead.
2 Identify and clearly mark all HT leads before
disconnecting them from the spark plugs.
3 Refer to the a ...
Weber 2V carburettor automatic choke unit - adjustment
XR3 models
1 Remove the air cleaner as described in
Section 2.
2 Disconnect the electrical lead to the
automatic choke.
3 Unscrew and remove the three screws
which hold the automatic choke housi ...
Exhaust manifold - removal and refitting
Note: A new gasket will be required on
refitting.
Removal
1 Disconnect the battery negative lead.
2 On carburettor and CFI engine models
remove the air cleaner as described in the
appropriate Pa ...
