13 --- Fuel/ air mixture incorrect
Intake air leak. See Section 11.
Mixture strength incorrect. Adjust idle mixture strength using airflow meter bypass screw. Fuel system fault. Refer to Chapter 5 - Fuel & Oil.
Air cleaner clogged or omitted. Clean or fit air cleaner element as necessary. Check also that the element and air filter cover is correctly seated.
Fuel tank air vent obstructed. Obstruction usually caused by dirt or water. Clean vent orifice.
Valve clearance incorrect. Check, and if necessary, adjust, the clearances.
© March 2015