2008 Honda Aquatrax ARX1500T3/T3D factory service manual, Page 84Get this manual
MAINTENANCE ADJUSTMENT Remove the valve lifters and shims (page 10-7)
Measure the shim thickness and record itNOTESixty-five different shim thicknesses are available from 1.200 to 2.800 in intervals of 0.025 mm
Calculate the new shim thickness using the equation below
A=(B-C)+D A: New shim thickness
B: Recorded valve clearance C: Specified valve clearance D: Old shim thickness
NOTE, Make sure of the correct shim thickness by measuring the shim with micrometerReface the valve seat if carbon deposits result in calculated dimension of over 2.800 mm