HOME D.3 VALVE LASH CALCULATION WORKSHEET 2 . Figure 1-86.Tappet And Shim NOTE Only use genuine Harley-Davidson shims for adjusting valve lash. Do not use typical shim stock. Shim stock can dislodge and cause severe engine damage. 8. Calculate and record on the valve lash calculation work- sheet the "New Shim Lower Limit" and the "New Shim Upper Limit." 9. Calculate and record "Desired Shim Size." 10. Select and record the "Closest Shim Size" replacement shim. Refer to D.1 VALVE TAPPET SHIMS and 1.22 SPARK PLUGS AND COIL . 11. Always confirm new shim thickness with micrometer. Record for reference. 12. See Figure 1-89 . Position new shim in spring retainer pocket.
Use a magnet to position the shim and carefully push into place with finger. 13. Reinstall tappet. 14. If the initial lash measurement of the remaining valve exceeds the upper or lower valve lash limits, perform the lash adjustment on the remaining valve. 1-58 2009 VRSC Service: Maintenance sm01754 Figure 1-85. Move Cam Aside With Chain Engaged sm01755 sm01841 1 2 3 1. Cam shaft 2. Tappet 3. Shim Figure 1-87. Cam,Tappet, Shim Orientation 7. Use a micrometer to measure the thickness of the removed shim. Record measurement in the "Installed Shim Meas- urement" column on valve lash calculation worksheet. See