Clutch faults

1. Carburettor jets blocked (if applicable). Remove all jets and blow through them with compressed air or in emergency with the mouth.
2. Air lock in fuel pipe. Unscrew pipe and blow through it with compressed air.
3. Fuel filter blocked. Remove filter from its location and clean or replace.
4. Float chamber needle valve sticking. Unscrew float chamber cover, remove needle valve and free off or replace valve. Fit cover with new gasket.
5. Water in carburettor. Clean out float chamber and all jets.
6. Restricted fuel flow due to foreign body in fuel supply line. Clean out lines.
7. Slow-running speed too low. Adjust to proper value.
8. Choke control improperly adjusted. Adjust in the case of manual choke and check setting in the case of automatic choke.
9. Float level out of adjustment. Adjust in accordance with the instructions in section "Fuel System".
10. Carburettor icing up. Very rare fault on modern carburettors. Engine will start after the ice has been thawed up.
11. Inlet manifold sucks in additional air. Check all gaskets on manifold and replace if necessary.
12. Fuel with incorrect octane rating used. Use proper fuel grade. Check with manufacturer.
13. Accelerator pump not operating. Dismantle carburettor and check linkage, lever and diaphragm.
14. Throttle operating linkage wrongly adjusted. Check and adjust as necessary.
15. Slow-running mixture not adjusted properly. Re-adjust slow-running speed in accordance with instructions in Section "Fuel System".
16. Air filter element obstructed. If necessary replace.
17. Ignition timing incorrectly adjusted.
18. Incorrect carburettor jets fitted. Applies not to fixed carburettor jets.

CLUTCH FAULTS

Clutch slipping: 1, 2, 3, 4, 5

Clutch will not disengage fully: 4, 6 to 12, 14

Whining from clutch when pedal is depressed: 13

Clutch judder: 1, 2, 7, 10 to 13

Clutch noise when idling: 2, 3

Clutch noise during engagement: 2