Idle Speed

With engine at normal operating temperature, remove air cleaners and top up carburetor piston dampers with clean engine oil. Disconnect throttle linkage. Ensure that choke control is fully closed. Loosen idle trim screw on each carburetor until it no longer contacts throttle lever. Loosen throttle spindle clamping bolts, check that throttles are closed and retighten. Loosen throttle balancing screws. Screw in idle trim screw on right rear and left front carburetors until contact is made with throttle lever. Start engine and adjust idle trim screws on right rear and left front carburetors to obtain an idle speed of 700-750 RPM, checking that air intake in both carburetors are equal. Screw in right balancing screw until both right side carburetor intakes are equal and repeat on left side. Screw in idle trim screw of right front and left rear carburetors until contact is JUST made with throttle levers. Reconnect throttle linkage and adjust if necessary. Reinstall air cleaners.