Warning: Petrol (gasoline) is extremely flammable, so take extra precautions when you work on any part of the fuel system. Don't smoke or allow open flames or bare light bulbs near the work area, and don't work in a garage where a natural gas-type appliance is present. If you spill any fuel on your skin, rinse it off immediately with soap and water. When you perform any kind of work on the fuel system, wear safety glasses and have a fire extinguisher suitable for a Class B type fire (flammable liquids) on hand.
1. The fuel system hoses should be renewed at the first signs of cracking or hardening. This includes all the vent and drain hoses, and the vacuum hose(s).
2. Remove the fuel tank and the air duct or filter housing, according to model (see Chapter 4). Disconnect the fuel hoses between the fuel tank and the carburettors, noting the routing of each hose and where it connects (see Chapter 4 if required), and the vacuum hose(s) from the intake duct (s) It is advisable to make a sketch of the various hoses before removing them to ensure they are correctly installed.
3. Secure each new hose to its unions using new clamps. Run the engine and check that there are no leaks before taking the machine out on the road.