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:

Vehicle Identification Numbers
Modifications are a continuing and unpublicised process in vehicle manufacture, quite apart from major model changes. Spare parts manuals and lists are compiled upon a numerical basis, the individ ...

General description
The braking system is of the dual circuit hydraulic type with disc brakes at the front and drum brakes at the rear. A diagonally split dual circuit hydraulic system is employed in which each circu ...

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 ...