Weber (1V) TLM carburettor - adjustment
Idle speed
1 Refer to Chapter 1, Section 10.
Idle mixture
2 Refer to Chapter 1, Section 11.
Fast idle
3 Have the engine at normal operating temperature with a reliable tachometer connected in accordance with the manufacturer’s instructions, and the air cleaner removed.
4 Hold the choke valve plate fully open with the fingers, and then operate the choke lever on the carburettor. If the engine fast idle speed is not as specified, turn the fast idle screw.
Fast idle adjustment screw - Weber (1V) TLM carburettor
This will be sealed with liquid sealant, and the screw should be locked in a similar manner on completion of adjustment.