Ducati Scrambler Manuale d'uso per la misurazione e la regolazione delle valvole - Pagina 9

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Measure

Use the magnet or magnet end of the screwdriver to extract

both halves of the retaining rings and set aside in a very safe

place (a zip lock bag properly labelled with the valve the

rings belong to).

With the retaining rings removed, you can now slide the

closing shim up and off the valve stem. If the shim gets

"stuck" at the top of the valve stem, it is an indication the

valve stem has mushroomed a bit. Some emery

cloth/sandpaper is needed to remove the wide part at the

top of the valve stem to provide clearance for the shim to

slide off.

The valve shim measuring tool and the electronic caliper will

be used to take the measurement. The tool sets inside of the

closing shim and gives a standard 10mm addition to your

measurement.

Turn the caliper on. Close the jaws using light pressure. Select

the unit of measure: either inch or mm. The shims are

designated by Ducati in millimeters and using mm as the unit

of measure simplifies new shim size selection. Press ZERO to

set the base line for the caliper.

Place the Shim Measuring Tool inside the closing shim

(narrow end in) and measure the overall length.

REMEMBER- The TOOL adds 10mm to the measurement:

subtract 10mm from the measurement and record your

number in Appendix 1.

In this example, the closing shim size would be 6.57mm.

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