Ducati Scrambler 800 - Service manual > Checking and adjusting the valve clearance

Remove the seat (Removing the seat).

Remove the fuel tank (Removing the fuel tank).

Remove the blow-by (Removing the airbox).

Remove the following parts from the electrical component box:

• Battery;
• Starter relay;
• Fuse box;

Remove the cylinder head covers (1).

Fit tool part no. 88713.011 and ensure the two tool pins match the two slots on crankcase following the same procedure as for "Changing the belts". Turn the crankshaft so that the valve to be inspected is in rest position.

With the valve in the rest position, slide a feeler gauge between opening rocker arm and shim to measure the clearance. The clearance must be within the specified limits:

Opening rocker arm

With the valve in the rest position, slide a feeler gauge between closing rocker arm and shim to measure the clearance.

Closing rocker arm

If detected values exceed the specified limits, replace opening and/or closing shims, as described in paragraph "Removing the valves and rocker arms", with one featuring an adequate thickness to obtain the specified clearance.

Note Opening rocker arm shims measuring from 1.8 to 3.45 and closing rocker arm shims from 2.2 to 4.5 are available as spare parts: the size is punched on the shim.

Reassemble the removed components in the removal reverse order.

See also: